SB 566: Geodetic datums and spatial reference network.
- Session Year: 2023-2024
- House: Senate
- Latest Version Date: 2023-07-21
Current Status:
Passed
(2023-07-21: Chaptered by Secretary of State. Chapter 111, Statutes of 2023.)
Introduced
In Committee
First Chamber
In Committee
Second Chamber
Enacted
Existing law defines the official geodetic datums and spatial reference network for use within this state for purposes of surveying and mapping, including the North American Datum of 1983 and the North American Vertical Datum of 1988.
This bill would additionally authorize the use of the North American Terrestrial Reference Frame of 2022, the Pacific Terrestrial Reference Frame of 2022, the California Coordinate System of 2022, and the North American-Pacific Geopotential Datum of 2022 for those purposes.
Existing law defines the official geodetic datums and spatial reference network for use within this state for purposes of surveying and mapping, including the North American Datum of 1983 and the North American Vertical Datum of 1988.
This bill would additionally authorize the use of the North American Terrestrial Reference Frame of 2022, the Pacific Terrestrial Reference Frame of 2022, the California Coordinate System of 2022, and the North American-Pacific Geopotential Datum of 2022 for those purposes.
Existing law defines the official geodetic datums and spatial reference network for use within this state for purposes of surveying and mapping, including the North American Datum of 1983 and the North American Vertical Datum of 1988.
This bill would additionally authorize the use of the North American Terrestrial Reference Frame of 2022, the Pacific Terrestrial Reference Frame of 2022, the California Coordinate System of 2022, and the North American-Pacific Geopotential Datum of 2022 for those purposes.
Existing law defines the official geodetic datums and spatial reference network for use within this state for purposes of surveying and mapping, including the North American Datum of 1983 and the North American Vertical Datum of 1988.
This bill would additionally authorize the use of the North American Terrestrial Reference Frame of 2022, the Pacific Terrestrial Reference Frame of 2022, and the North American-Pacific Geopotential Datum of 2022 for those purposes.
(a)The system of plane coordinates that has been established by the United States Coast and Geodetic Survey for defining and stating the positions or locations of points on the surface of the earth within the State of California is based on the North American Datum of 1927 and is identified as the California Coordinate System. After January 1, 1987, this system shall be known as the California Coordinate System of 1927.
(b)The system of plane coordinates which has been established by the National Geodetic Survey for defining and stating the positions or locations of points on the surface of the earth within the State of California and which is based on the North American Datum of 1983 shall be known as the California Coordinate System of 1983.
(c)As used in this chapter:
(1)NAD27 means the North American Datum of 1927.
(2)CCS27 means the California Coordinate System of 1927.
(3)NAD83 means the North American Datum of 1983.
(4)CCS83 means the California Coordinate System of 1983.
(5) USC&GS means the United States Coast and Geodetic Survey.
(6)NGS means the National Geodetic Survey or its successor.
(7)FGCS means the Federal Geodetic Control Subcommittee or its successor.
(8)NATRF2022 means the North American Terrestrial Reference Frame of 2022.
(9)PATRF2022 means the Pacific Terrestrial Reference Frame of 2022.
(10)CCS2022 means the California Coordinate System of 2022.
(11)CSRC means the California Spatial Reference Center or its successor.
(12)CSRN means the California Spatial Reference Network, as defined by Chapter 3 (commencing with Section 8850), Geodetic Datums and the California Spatial Reference Network.
(13)GPS means Global Positioning System and includes other, similar space-based systems.
(14)FGDC means the Federal Geographic Data Committee or its successor.
(15)NSRS means the National Spatial Reference System.
(d)The California portion of the system of plane coordinates defined as the State Plane Coordinates System of 2022 (SPCS2022) as established by NGS and maintained by either NGS or CSRC shall be known as the California Coordinate System of 2022.
(e)The use of the term State Plane Coordinates refers only to CCS27, CCS83, and CCS2022 coordinates.
SEC. 2.Section 8810 of the Public Resources Code is amended to read:8810.The plane coordinates of a point on the earths surface, to be used in expressing the position or location of the point in the appropriate zone of CCS27 or CCS83, shall consist of two distances, expressed in feet and decimals of a foot or meters and decimals of a meter. One of these distances, to be known as the East x-coordinate, shall give the distance east of the Y axis; the other, to be known as the North y-coordinate, shall give the distance north of the X axis. The Y axis of any zone shall be parallel with the central meridian of that zone. The X axis of any zone shall be at right angles to the central meridian of that zone. When the values are expressed in feet, the U.S. Survey foot, (one foot equals 1200/3937 meters) shall be used as the standard foot for CCS27 and CCS83. For CCS2022, the official conversion, commonly called the international foot, shall be used (one foot equals 0.3048 meters).
SEC. 3.Section 8815 of the Public Resources Code is amended to read:8815.The use of the term California Coordinate System on any map or document or in any field notes shall be suffixed either with 27 (shown as CCS27) for coordinates based on NAD27, with 83 (shown as CCS83) for coordinates based on NAD83, and with 2022 (shown as CCS2022) for coordinates based upon NATRF2022 or PATRF2022.
SEC. 4.Section 8815.1 of the Public Resources Code is amended to read:8815.1.When CCS83 coordinates are shown on any map, corner record, or other document, the map, corner record, or document shall state the datum realization tag in parentheses and epoch date, in a decimal year format to two decimal places, that is the basis of the coordinate values shown. The datum realization tag and epoch date shall be shown on the map, corner record, or other document by an appropriate note on the map, corner record, or document or by adding a suffix in parentheses after CCS83 that states the epoch; for example, CCS83 (2011) epoch 2010.00, CCS83 (NSRS) epoch 2007.00, and so forth.
SEC. 5.Section 8815.2 of the Public Resources Code is amended to read:8815.2.The epoch for a survey using CCS83 coordinates shall be the published NGS or CSRC datum realization and epoch date of a published coordinate for a controlling station used for that survey. These surveys performed after December 31, 1999, shall be based on the NAD83 (1992) epoch 1991.35 datum realization and epoch or a subsequent published NGS or CSRC datum realization and epoch.
SEC. 6.Section 8815.3 of the Public Resources Code is amended to read:8815.3.When the published epochs of the controlling stations for a survey using CCS83 or CCS2022 coordinates are not the same, appropriate adjustments shall be made to the horizontal positions of controlling stations so that the coordinates of all the controlling stations are consistent. These adjustments in the horizontal positions of controlling stations shall be made in accordance with procedures and values published by the NGS or CSRC.
SEC. 7.Section 8815.4 of the Public Resources Code is amended to read:8815.4.When a purported order of accuracy of second order or better is shown for CCS83 or CCS2022 coordinate values on any map, corner record, or other document prior to January 1, 2006, that map, corner record, or other document shall use the order of accuracy as defined by the FGCS or FGDC If an FGCS or FGDC order of accuracy is claimed for a survey or a map, it shall be justified by additional written data that shows equipment, procedures, closures, adjustments, and a control diagram.
SEC. 8.Section 8815.5 of the Public Resources Code is amended to read:8815.5.When CCS83 or CCS2022 coordinates are shown on any map, corner record, or record of survey, a mapping angle, combined grid factor, and the elevation used to determine the combined grid factor shall be shown on the map, corner record, or record of survey for at least one representative point.
SEC. 9.Section 8817 of the Public Resources Code is amended to read:8817.Prior to January 1, 1995, use of State Plane Coordinates for new projects may be based either on CCS27 or CCS83. On or after January 1, 1995, when State Plane Coordinates are used on new surveys and new mapping projects, the use shall be limited to CCS83. However, this section does not preclude a survey from retracement of a CCS27 survey. After January 1 2025, new surveys and mapping projects may be based upon CCS2022.
SEC. 10.Section 8851 of the Public Resources Code is amended to read:8851.As used in this chapter:
(a)NGS means National Geodetic Survey or its successor.
(b)CSRC means California Spatial Reference Center or its successor.
(c)NAD83 means North American Datum of 1983.
(d)NATRF2022 means the North American Terrestrial Reference Frame of 2022.
(e)PATRF2022 means the Pacific Terrestrial Reference Frame of 2022.
(f)NAVD88 means North American Vertical Datum of 1988.
(g)NAPGD2022 means the North American-Pacific Geopotential Datum of 2022.
(h)ITRF means International Terrestrial Reference Frame as defined by the International Earth Rotation Service.
(i)GPS means Global Positioning System and includes other, similar space-based systems.
(j)FGDC means Federal Geographic Data Committee or it successor.
(k)FGCS means the Federal Geodetic Control Subcommittee or its successor.
(l)CSRN means California Spatial Reference Network.
(m)NSRS means the National Spatial Reference System.
SEC. 11.Section 8852 of the Public Resources Code is amended to read:8852.The official geodetic datum to which horizontal positions and ellipsoid heights are referenced within the State of California shall be NAD83, NATRF2022, or PATRF2022.
SEC. 12.Section 8853 of the Public Resources Code is amended to read:8853.The official geodetic datum to which orthometric heights are referenced within the State of California shall be NAVD88 or NAPGD2022.
SEC. 13.Section 8854 of the Public Resources Code is amended to read:8854.When horizontal positions, ellipsoid heights, or orthometric heights are shown on a document, the document shall show the geodetic datum, including datum realization tag and epoch date, if appropriate, to which the values are referenced, whether NAD83 (NSRS) epoch 2007.00, NATRF2022, NAVD88, NAPGD2022, ITRF, or another datum.
SEC. 14.Section 8856 of the Public Resources Code is amended to read:8856.The geodetic control stations within the State of California having horizontal positions conforming to all of the following requirements shall be part of the CSRN. The horizontal positions shall:
(a)Be referenced to NAD83 or NATRF2022.
(b)Have been determined by GPS survey methods.
(c)Be published by NGS or CSRC.
(d)Have a NGS or CSRC published network accuracy of two centimeters or better as defined by FGDC or a NGS or CSRC published accuracy of first order or better as defined by FGCS.
(e)Have a NGS or CSRC published horizontal velocity or a horizontal velocity that can be determined using procedures and values published by NGS or CSRC.
SEC. 15.Section 8857 of the Public Resources Code is amended to read:8857.The geodetic control stations within the State of California having ellipsoid heights conforming to all of the following requirements shall be part of the CSRN. The ellipsoid heights shall:
(a)Be referenced to NAD83 or NATRF2022.
(b)Have been determined by GPS survey methods.
(c)Be published by NGS or CSRC.
(d)Have a NGS or CSRC published network accuracy of five centimeters or better as defined by FGDC or a NGS or CSRC published accuracy of fourth order, class II, or better as defined by FGCS.
SEC. 16.Section 8858 of the Public Resources Code is amended to read:8858.The geodetic control stations within the State of California having orthometric heights determined by GPS survey methods and conforming to all of the following requirements shall be part of the CSRN. The orthometric heights shall:
(a)Be based on NAD83 and referenced to NAVD88, or alternatively, NATRF2022 and NAPGD2022.
(b)Be published by NGS or CSRC.
(c)Have a NGS or CSRC published network accuracy of five centimeters or better as defined by FGDC.
SEC. 17.Section 8860 of the Public Resources Code is amended to read:8860.The use of the NAD83, NATRF2022, PATRF2022, NAVD88, NAPGD2022, and CSRN by any person, firm, or governmental agency is optional.
(a)The system of plane coordinates that has been established by the United States Coast and Geodetic Survey for defining and stating the positions or locations of points on the surface of the earth within the State of California is based on the North American Datum of 1927 and is identified as the California Coordinate System. After January 1, 1987, this system shall be known as the California Coordinate System of 1927.
(b)The system of plane coordinates which has been established by the National Geodetic Survey for defining and stating the positions or locations of points on the surface of the earth within the State of California and which is based on the North American Datum of 1983 shall be known as the California Coordinate System of 1983.
(c)As used in this chapter:
(1)NAD27 means the North American Datum of 1927.
(2)CCS27 means the California Coordinate System of 1927.
(3)NAD83 means the North American Datum of 1983.
(4)CCS83 means the California Coordinate System of 1983.
(5) USC&GS means the United States Coast and Geodetic Survey.
(6)NGS means the National Geodetic Survey or its successor.
(7)FGCS means the Federal Geodetic Control Subcommittee or its successor.
(8)NATRF2022 means the North American Terrestrial Reference Frame of 2022.
(9)PATRF2022 means the Pacific Terrestrial Reference Frame of 2022.
(10)CCS2022 means the California Coordinate System of 2022.
(11)CSRC means the California Spatial Reference Center or its successor.
(12)CSRN means the California Spatial Reference Network, as defined by Chapter 3 (commencing with Section 8850), Geodetic Datums and the California Spatial Reference Network.
(13)GPS means Global Positioning System and includes other, similar space-based systems.
(14)FGDC means the Federal Geographic Data Committee or its successor.
(15)NSRS means the National Spatial Reference System.
(d)The California portion of the system of plane coordinates defined as the State Plane Coordinates System of 2022 (SPCS2022) as established by NGS and maintained by either NGS or CSRC shall be known as the California Coordinate System of 2022.
(e)The use of the term State Plane Coordinates refers only to CCS27, CCS83, and CCS2022 coordinates.
SEC. 2.Section 8810 of the Public Resources Code is amended to read:8810.The plane coordinates of a point on the earths surface, to be used in expressing the position or location of the point in the appropriate zone of CCS27 or CCS83, shall consist of two distances, expressed in feet and decimals of a foot or meters and decimals of a meter. One of these distances, to be known as the East x-coordinate, shall give the distance east of the Y axis; the other, to be known as the North y-coordinate, shall give the distance north of the X axis. The Y axis of any zone shall be parallel with the central meridian of that zone. The X axis of any zone shall be at right angles to the central meridian of that zone. When the values are expressed in feet, the U.S. Survey foot, (one foot equals 1200/3937 meters) shall be used as the standard foot for CCS27 and CCS83. For CCS2022, the official conversion, commonly called the international foot, shall be used (one foot equals 0.3048 meters).
SEC. 3.Section 8815 of the Public Resources Code is amended to read:8815.The use of the term California Coordinate System on any map or document or in any field notes shall be suffixed either with 27 (shown as CCS27) for coordinates based on NAD27, with 83 (shown as CCS83) for coordinates based on NAD83, and with 2022 (shown as CCS2022) for coordinates based upon NATRF2022 or PATRF2022.
SEC. 4.Section 8815.1 of the Public Resources Code is amended to read:8815.1.When CCS83 coordinates are shown on any map, corner record, or other document, the map, corner record, or document shall state the datum realization tag in parentheses and epoch date, in a decimal year format to two decimal places, that is the basis of the coordinate values shown. The datum realization tag and epoch date shall be shown on the map, corner record, or other document by an appropriate note on the map, corner record, or document or by adding a suffix in parentheses after CCS83 that states the epoch; for example, CCS83 (2011) epoch 2010.00, CCS83 (NSRS) epoch 2007.00, and so forth.
SEC. 5.Section 8815.2 of the Public Resources Code is amended to read:8815.2.The epoch for a survey using CCS83 coordinates shall be the published NGS or CSRC datum realization and epoch date of a published coordinate for a controlling station used for that survey. These surveys performed after December 31, 1999, shall be based on the NAD83 (1992) epoch 1991.35 datum realization and epoch or a subsequent published NGS or CSRC datum realization and epoch.
SEC. 6.Section 8815.3 of the Public Resources Code is amended to read:8815.3.When the published epochs of the controlling stations for a survey using CCS83 or CCS2022 coordinates are not the same, appropriate adjustments shall be made to the horizontal positions of controlling stations so that the coordinates of all the controlling stations are consistent. These adjustments in the horizontal positions of controlling stations shall be made in accordance with procedures and values published by the NGS or CSRC.
SEC. 7.Section 8815.4 of the Public Resources Code is amended to read:8815.4.When a purported order of accuracy of second order or better is shown for CCS83 or CCS2022 coordinate values on any map, corner record, or other document prior to January 1, 2006, that map, corner record, or other document shall use the order of accuracy as defined by the FGCS or FGDC If an FGCS or FGDC order of accuracy is claimed for a survey or a map, it shall be justified by additional written data that shows equipment, procedures, closures, adjustments, and a control diagram.
SEC. 8.Section 8815.5 of the Public Resources Code is amended to read:8815.5.When CCS83 or CCS2022 coordinates are shown on any map, corner record, or record of survey, a mapping angle, combined grid factor, and the elevation used to determine the combined grid factor shall be shown on the map, corner record, or record of survey for at least one representative point.
SEC. 9.Section 8817 of the Public Resources Code is amended to read:8817.Prior to January 1, 1995, use of State Plane Coordinates for new projects may be based either on CCS27 or CCS83. On or after January 1, 1995, when State Plane Coordinates are used on new surveys and new mapping projects, the use shall be limited to CCS83. However, this section does not preclude a survey from retracement of a CCS27 survey. After January 1 2025, new surveys and mapping projects may be based upon CCS2022.
SEC. 10.Section 8851 of the Public Resources Code is amended to read:8851.As used in this chapter:
(a)NGS means National Geodetic Survey or its successor.
(b)CSRC means California Spatial Reference Center or its successor.
(c)NAD83 means North American Datum of 1983.
(d)NATRF2022 means the North American Terrestrial Reference Frame of 2022.
(e)PATRF2022 means the Pacific Terrestrial Reference Frame of 2022.
(f)NAVD88 means North American Vertical Datum of 1988.
(g)NAPGD2022 means the North American-Pacific Geopotential Datum of 2022.
(h)ITRF means International Terrestrial Reference Frame as defined by the International Earth Rotation Service.
(i)GPS means Global Positioning System and includes other, similar space-based systems.
(j)FGDC means Federal Geographic Data Committee or it successor.
(k)FGCS means the Federal Geodetic Control Subcommittee or its successor.
(l)CSRN means California Spatial Reference Network.
(m)NSRS means the National Spatial Reference System.
SEC. 11.Section 8852 of the Public Resources Code is amended to read:8852.The official geodetic datum to which horizontal positions and ellipsoid heights are referenced within the State of California shall be NAD83, NATRF2022, or PATRF2022.
SEC. 12.Section 8853 of the Public Resources Code is amended to read:8853.The official geodetic datum to which orthometric heights are referenced within the State of California shall be NAVD88 or NAPGD2022.
SEC. 13.Section 8854 of the Public Resources Code is amended to read:8854.When horizontal positions, ellipsoid heights, or orthometric heights are shown on a document, the document shall show the geodetic datum, including datum realization tag and epoch date, if appropriate, to which the values are referenced, whether NAD83 (NSRS) epoch 2007.00, NATRF2022, NAVD88, NAPGD2022, ITRF, or another datum.
SEC. 14.Section 8856 of the Public Resources Code is amended to read:8856.The geodetic control stations within the State of California having horizontal positions conforming to all of the following requirements shall be part of the CSRN. The horizontal positions shall:
(a)Be referenced to NAD83 or NATRF2022.
(b)Have been determined by GPS survey methods.
(c)Be published by NGS or CSRC.
(d)Have a NGS or CSRC published network accuracy of two centimeters or better as defined by FGDC or a NGS or CSRC published accuracy of first order or better as defined by FGCS.
(e)Have a NGS or CSRC published horizontal velocity or a horizontal velocity that can be determined using procedures and values published by NGS or CSRC.
SEC. 15.Section 8857 of the Public Resources Code is amended to read:8857.The geodetic control stations within the State of California having ellipsoid heights conforming to all of the following requirements shall be part of the CSRN. The ellipsoid heights shall:
(a)Be referenced to NAD83 or NATRF2022.
(b)Have been determined by GPS survey methods.
(c)Be published by NGS or CSRC.
(d)Have a NGS or CSRC published network accuracy of five centimeters or better as defined by FGDC or a NGS or CSRC published accuracy of fourth order, class II, or better as defined by FGCS.
SEC. 16.Section 8858 of the Public Resources Code is amended to read:8858.The geodetic control stations within the State of California having orthometric heights determined by GPS survey methods and conforming to all of the following requirements shall be part of the CSRN. The orthometric heights shall:
(a)Be based on NAD83 and referenced to NAVD88, or alternatively, NATRF2022 and NAPGD2022.
(b)Be published by NGS or CSRC.
(c)Have a NGS or CSRC published network accuracy of five centimeters or better as defined by FGDC.
SEC. 17.Section 8860 of the Public Resources Code is amended to read:8860.The use of the NAD83, NATRF2022, PATRF2022, NAVD88, NAPGD2022, and CSRN by any person, firm, or governmental agency is optional.
(a)The system of plane coordinates that has been established by the United States Coast and Geodetic Survey for defining and stating the positions or locations of points on the surface of the earth within the State of California is based on the North American Datum of 1927 and is identified as the California Coordinate System. After January 1, 1987, this system shall be known as the California Coordinate System of 1927.
(b)The system of plane coordinates which has been established by the National Geodetic Survey for defining and stating the positions or locations of points on the surface of the earth within the State of California and which is based on the North American Datum of 1983 shall be known as the California Coordinate System of 1983.
(c)As used in this chapter:
(1)NAD27 means the North American Datum of 1927.
(2)CCS27 means the California Coordinate System of 1927.
(3)NAD83 means the North American Datum of 1983.
(4)CCS83 means the California Coordinate System of 1983.
(5) USC&GS means the United States Coast and Geodetic Survey.
(6)NGS means the National Geodetic Survey or its successor.
(7)FGCS means the Federal Geodetic Control Subcommittee or its successor.
(8)NATRF2022 means the North American Terrestrial Reference Frame of 2022.
(9)PATRF2022 means the Pacific Terrestrial Reference Frame of 2022.
(10)CCS2022 means the California Coordinate System of 2022.
(8)(11)CSRC means the California Spatial Reference Center or its successor.
(9)(12)CSRN means the California Spatial Reference Network, as defined by Chapter 3 (commencing with Section 8850), Geodetic Datums and the California Spatial Reference Network.
(10)(13)GPS means Global Positioning System and includes other, similar space-based systems.
(11)(14)FGDC means the Federal Geographic Data Committee or its successor.
(15)NSRS means the National Spatial Reference System.
(d)The California portion of the system of plane coordinates defined as the State Plane Coordinates System of 2022 (SPCS2022) as established by NGS and maintained by either NGS or CSRC shall be known as the California Coordinate System of 2022.
(d)(e)The use of the term State Plane Coordinates refers only to CCS27 and CCS83 CCS27, CCS83, and CCS2022 coordinates.
SEC. 2.Section 8810 of the Public Resources Code is amended to read:8810.The plane coordinates of a point on the earths surface, to be used in expressing the position or location of the point in the appropriate zone of CCS27 or CCS83, shall consist of two distances, expressed in feet and decimals of a foot or meters and decimals of a meter. When the values are expressed in feet, the U.S. Survey foot, (one foot = 1200/3937 meters) shall be used as the standard foot for CCS27 and CCS83. One of these distances, to be known as the East x-coordinate, shall give the distance east of the Y axis; the other, to be known as the North y-coordinate, shall give the distance north of the X axis. The Y axis of any zone shall be parallel with the central meridian of that zone. The X axis of any zone shall be at right angles to the central meridian of that zone. When the values are expressed in feet, the U.S. Survey foot, (one foot equals 1200/3937 meters) shall be used as the standard foot for CCS27 and CCS83. For CCS2022, the official conversion, commonly called the international foot, shall be used (one foot equals 0.3048 meters).
SEC. 3.Section 8815 of the Public Resources Code is amended to read:8815.The use of the term California Coordinate System on any map or document or in any field notes shall be suffixed either with 27 (shown as CCS27) for coordinates based on NAD27 or NAD27, with 83 (shown as CCS83) for coordinates based on NAD83. NAD83, and with 2022 (shown as CCS2022) for coordinates based upon NATRF2022 or PATRF2022.
SEC. 4.Section 8815.1 of the Public Resources Code is amended to read:8815.1.When CCS83 coordinates are shown on any map, corner record, or other document, the map, corner record, or document shall state the epoch (date), datum realization tag in parentheses and epoch date, in a decimal year format to two decimal places, that is the basis of the coordinate values shown. The epoch datum realization tag and epoch date shall be shown on the map, corner record, or other document by an appropriate note on the map, corner record, or document or by adding a suffix in parentheses after CCS83 that states the epoch; examples, CCS83 (1991.35), CCS83 (2002.00), for example, CCS83 (2011) epoch 2010.00, CCS83 (NSRS) epoch 2007.00, and so forth.
SEC. 5.Section 8815.2 of the Public Resources Code is amended to read:8815.2.The epoch for a survey using CCS83 coordinate coordinates shall be the published NGS or CSRC epoch datum realization and epoch date of a published coordinate for a controlling station used for that survey. Such These surveys performed after December 31, 1999, shall be based on the 1991.35 NAD83 (1992) epoch 1991.35 datum realization and epoch or a subsequent published NGS or CSRC datum realization and epoch.
SEC. 6.Section 8815.3 of the Public Resources Code is amended to read:8815.3.When the published epochs of the controlling stations for a survey using CCS83 or CCS2022 coordinates are not the same, appropriate adjustments shall be made to the horizontal positions of controlling stations so that the coordinates of all the controlling stations are consistent. These adjustments in the horizontal positions of controlling stations shall be made in accordance with procedures and values published by the NGS or CSRC.
SEC. 7.Section 8815.4 of the Public Resources Code is amended to read:8815.4.When a purported order of accuracy of second order or better is shown for CCS83 or CCS2022 coordinate values on any map, corner record, or other document prior to January 1, 2006, that map, corner record, or other document shall use the order of accuracy as defined by the FGCS. FGCS or FGDC If an FGCS or FGDC order of accuracy is claimed for a survey or a map, it shall be justified by additional written data that shows equipment, procedures, closures, adjustments, and a control diagram.
SEC. 8.Section 8815.5 of the Public Resources Code is amended to read:8815.5.When CCS83 or CCS2022 coordinates are shown on any map, corner record, or record of survey, a mapping angle, combined grid factor, and the elevation used to determine the combined grid factor shall be shown on the map, corner record, or record of survey for at least one representative point.
SEC. 9.Section 8817 of the Public Resources Code is amended to read:8817.Prior to January 1, 1995, use of State Plane Coordinates for new projects may be based either on CCS27 or CCS83. On or after January 1, 1995, when State Plane Coordinates are used on new surveys and new mapping projects, the use shall be limited to CCS83. However, nothing in this section shall does not preclude a survey from retracement of a CCS27 survey. After January 1 2025, new surveys and mapping projects may be based upon CCS2022.
SECTION 1.SEC. 10.Section 8851 of the Public Resources Code is amended to read:8851.As used in this chapter:
(a)NGS means National Geodetic Survey or its successor.
(b)CSRC means California Spatial Reference Center or its successor.
(c)NAD83 means North American Datum of 1983.
(d)NATRF2022 means the North American Terrestrial Reference Frame of 2022.
(e)PATRF2022 means the Pacific Terrestrial Reference Frame of 2022.
(f)NAVD88 means North American Vertical Datum of 1988.
(g)NAPGD2022 means the North American-Pacific Geopotential Datum of 2022.
(h)ITRF means International Terrestrial Reference Frame as defined by the International Earth Rotation Service.
(i)GPS means Global Positioning System and includes other, similar space-based systems.
(j)FGDC means Federal Geographic Data Committee or it successor.
(k)FGCS means the Federal Geodetic Control Subcommittee or its successor.
(l)CSRN means California Spatial Reference Network.
(m)NSRS means the National Spatial Reference System.
SEC. 2.SEC. 11.Section 8852 of the Public Resources Code is amended to read:8852.The official geodetic datum to which horizontal positions and ellipsoid heights are referenced within the State of California shall be NAD83, NATRF2022, or PATRF2022.
SEC. 3.SEC. 12.Section 8853 of the Public Resources Code is amended to read:8853.The official geodetic datum to which orthometric heights are referenced within the State of California shall be NAVD88 or NAPGD2022.
SEC. 4.SEC. 13.Section 8854 of the Public Resources Code is amended to read:8854.When horizontal positions, ellipsoid heights, or orthometric heights are shown on a document, the document shall show the geodetic datum, including datum realization tag and epoch date, if appropriate, to which the values are referenced, whether NAD83 (NSRS) epoch 2007.00, NATRF2022, NAVD88, NAPGD2022, ITRF, or another datum.
SEC. 5.SEC. 14.Section 8856 of the Public Resources Code is amended to read:8856.The geodetic control stations within the State of California having horizontal positions conforming to all of the following requirements shall be part of the CSRN. The horizontal positions shall:
(a)Be referenced to NAD83 or NATRF2022.
(b)Have been determined by GPS survey methods.
(c)Be published by NGS or CSRC.
(d)Have a NGS or CSRC published network accuracy of two centimeters or better as defined by FGDC or a NGS or CSRC published accuracy of first order or better as defined by FGCS.
(e)Have a NGS or CSRC published horizontal velocity or a horizontal velocity that can be determined using procedures and values published by NGS or CSRC.
SEC. 6.SEC. 15.Section 8857 of the Public Resources Code is amended to read:8857.The geodetic control stations within the State of California having ellipsoid heights conforming to all of the following requirements shall be part of the CSRN. The ellipsoid heights shall:
(a)Be referenced to NAD83 or NATRF2022.
(b)Have been determined by GPS survey methods.
(c)Be published by NGS or CSRC.
(d)Have a NGS or CSRC published network accuracy of five centimeters or better as defined by FGDC or a NGS or CSRC published accuracy of fourth order, class II, or better as defined by FGCS.
SEC. 7.SEC. 16.Section 8858 of the Public Resources Code is amended to read:8858.The geodetic control stations within the State of California having orthometric heights determined by GPS survey methods and conforming to all of the following requirements shall be part of the CSRN. The orthometric heights shall:
(a)Be based on NAD83 and referenced to NAVD88, or alternatively, NATRF2022 and NAPGD2022.
(b)Be published by NGS or CSRC.
(c)Have a NGS or CSRC published network accuracy of five centimeters or better as defined by FGDC.
SEC. 8.SEC. 17.Section 8860 of the Public Resources Code is amended to read:8860.The use of the NAD83, NATRF2022, PATRF2022, NAVD88, NAPGD2022, and CSRN by any person, firm, or governmental agency is optional.
As used in this chapter:
(a)NGS means National Geodetic Survey or its successor.
(b)CSRC means California Spatial Reference Center or its successor.
(c)NAD83 means North American Datum of 1983.
(d)NATRF2022 means the North American Terrestrial Reference Frame of 2022.
(e)PATRF2022 means the Pacific Terrestrial Reference Frame of 2022.
(d)(f)NAVD88 means North American Vertical Datum of 1988.
(g)NAPGD2022 means the North American-Pacific Geopotential Datum of 2022.
(e)(h)ITRF means International Terrestrial Reference Frame as defined by the International Earth Rotation Service.
(f)(i)GPS means Global Positioning System and includes other, similar space-based systems.
(g)(j)FGDC means Federal Geographic Data Committee or it successor.
(h)(k)FGCS means the Federal Geodetic Control Subcommittee or its successor.
(i)(l)CSRN means California Spatial Reference Network.
SEC. 2.Section 8852 of the Public Resources Code is amended to read:8852.The official geodetic datum to which horizontal positions and ellipsoid heights are referenced within the State of California shall be NAD83. NAD83, NATRF2022, or PATRF2022.
SEC. 3.Section 8853 of the Public Resources Code is amended to read:8853.The official geodetic datum to which orthometric heights are referenced within the State of California shall be NAVD88. NAVD88 or NAPGD2022.
SEC. 4.Section 8854 of the Public Resources Code is amended to read:8854.When horizontal positions, ellipsoid heights, or orthometric heights are shown on a document, the document shall show the geodetic datum datum, including datum realization tag and epoch date, if appropriate, to which the values are referenced, whether NAD83, NAVD88, NAD83 (NSRS) epoch 2007.00, NATRF2022, NAVD88, NAPGD2022, ITRF, or another datum.
SEC. 5.Section 8856 of the Public Resources Code is amended to read:8856.The geodetic control stations within the State of California having horizontal positions conforming to all of the following requirements shall be part of the CSRN. The horizontal positions shall:
(a)Be referenced to NAD83. NAD83 or NATRF2022.
(b)Have been determined by GPS survey methods.
(c)Be published by NGS or CSRC.
(d)Have a NGS or CSRC published network accuracy of two centimeters or better as defined by FGDC or a NGS or CSRC published accuracy of first order or better as defined by FGCS.
(e)Have a NGS or CSRC published horizontal velocity or a horizontal velocity that can be determined using procedures and values published by NGS or CSRC.
SEC. 6.Section 8857 of the Public Resources Code is amended to read:8857.The geodetic control stations within the State of California having ellipsoid heights conforming to all of the following requirements shall be part of the CSRN. The ellipsoid heights shall:
(a)Be referenced to NAD83. NAD83 or NATRF2022.
(b)Have been determined by GPS survey methods.
(c)Be published by NGS or CSRC.
(d)Have a NGS or CSRC published network accuracy of five centimeters or better as defined by FGDC or a NGS or CSRC published accuracy of fourth order, class II, or better as defined by FGCS.
SEC. 7.Section 8858 of the Public Resources Code is amended to read:8858.The geodetic control stations within the State of California having orthometric heights determined by GPS survey methods and conforming to all of the following requirements shall be part of the CSRN. The orthometric heights shall:
(a)Be based on NAD83 and referenced to NAVD88. NAVD88, or alternatively, NATRF2022 and NAPGD2022.
(b)Be published by NGS or CSRC.
(c)Have a NGS or CSRC published network accuracy of five centimeters or better as defined by FGDC.
SEC. 8.Section 8860 of the Public Resources Code is amended to read:8860.The use of the NAD83, NATRF2022, PATRF2022, NAVD88, NAPGD2022, and CSRN by any person, firm, or governmental agency is optional.
|
Date
|
Status
|
|---|---|
| Jul 21, 2023 | Chaptered by Secretary of State. Chapter 111, Statutes of 2023. |
| Jul 21, 2023 | Approved by the Governor. |
| Jul 11, 2023 | Enrolled and presented to the Governor at 11 a.m. |
| Jul 6, 2023 | Assembly amendments concurred in. (Ayes 40. Noes 0. Page 1917.) Ordered to engrossing and enrolling. |
| Jul 5, 2023 | Ordered to special consent calendar. |
| Jun 28, 2023 | In Senate. Concurrence in Assembly amendments pending. |
| Jun 27, 2023 | Read third time. Passed. (Ayes 78. Noes 0. Page 2427.) Ordered to the Senate. |
| Jun 22, 2023 | Read second time. Ordered to consent calendar. |
| Jun 21, 2023 | From committee: Do pass. Ordered to consent calendar. (Ayes 13. Noes 0.) (June 21). |
| Jun 7, 2023 | From committee: Do pass and re-refer to Com. on APPR. with recommendation: To consent calendar. (Ayes 8. Noes 0.) (June 7). Re-referred to Com. on APPR. |
| May 30, 2023 | From committee with author's amendments. Read second time and amended. Re-referred to Com. on L. GOV. |
| May 11, 2023 | Referred to Com. on L. GOV. |
| May 1, 2023 | In Assembly. Read first time. Held at Desk. |
| May 1, 2023 | Read third time. Passed. (Ayes 37. Noes 0. Page 962.) Ordered to the Assembly. |
| Apr 25, 2023 | Read second time. Ordered to consent calendar. |
| Apr 24, 2023 | From committee: Be ordered to second reading pursuant to Senate Rule 28.8 and ordered to consent calendar. |
| Apr 14, 2023 | Set for hearing April 24. |
| Apr 12, 2023 | From committee: Do pass and re-refer to Com. on APPR with recommendation: To consent calendar. (Ayes 8. Noes 0. Page 683.) (April 12). Re-referred to Com. on APPR. |
| Mar 21, 2023 | Set for hearing April 12. |
| Feb 22, 2023 | Referred to Com. on GOV. & F. |
| Feb 16, 2023 | From printer. May be acted upon on or after March 18. |
| Feb 15, 2023 | Introduced. Read first time. To Com. on RLS. for assignment. To print. |
|
Date
|
Description
|
Location
|
Votes
|
|
|---|---|---|---|---|
| Jul 6, 2023 | Special Consent SB566 Jones | Senate Floor |
Passed |
|
| Jun 27, 2023 | SB 566 Jones Consent Calendar Second Day Regular Session | Assembly Floor |
Passed |
|
| Jun 21, 2023 | Do pass. To Consent Calendar. | Assembly Standing Committee on Appropriations |
Passed |
|
| Jun 7, 2023 | Do pass and be re-referred to the Committee on [Appropriations] with recommendation: To Consent Calendar | Assembly Standing Committee on Local Government |
Passed |
|
| May 1, 2023 | Consent Calendar SB566 Jones | Senate Floor |
Passed |
|
| Apr 12, 2023 | Do pass, but first be re-referred to the Committee on [Appropriations] with the recommendation: To Consent Calendar | Senate Standing Committee on Governance and Finance |
Passed |
This list shows positions taken on this bill by organizations on the date displayed, which is linked to the original source.
Positions by individuals are not included.
|
Organization
|
Position
|
Date
|
|---|---|---|
| California Land Surveyors Association | ** Support |
SENATE RULES COMMITTEE Office of Senate Floor Analyses (916) 651-1520 Fax: (916) 327-4478 | SB 566 |
UNFINISHED BUSINESS
Bill No: SB 566
Author: Jones (R)
Amended: 5/30/23
Vote: 21
SENATE GOVERNANCE & FIN. COMMITTEE: 8-0, 4/12/23
AYES: Caballero, Seyarto, Blakespear, Dahle, Durazo, Glazer, Skinner, Wiener
SENATE APPROPRIATIONS COMMITTEE: Senate Rule 28.8
SENATE FLOOR: 37-0, 5/1/23 (Consent)
AYES: Allen, Alvarado-Gil, Archuleta, Ashby, Atkins, Becker, Bradford, Caballero, Cortese, Dahle, Dodd, Durazo, Eggman, Gonzalez, Grove, Hurtado, Jones, Laird, Limón, McGuire, Menjivar, Min, Newman, Nguyen, Niello, Ochoa Bogh, Padilla, Portantino, Roth, Rubio, Seyarto, Skinner, Smallwood-Cuevas, Stern, Umberg, Wahab, Wiener
NO VOTE RECORDED: Blakespear, Glazer, Wilk
ASSEMBLY FLOOR: 78-0, 6/27/23 (Consent) - See last page for vote
SUBJECT: Geodetic datums and spatial reference network
SOURCE: California Land Surveyors Association
DIGEST:
This bill authorizes the use of additional geographical measurement systems for the purposes of surveying and mapping
Assembly Amendments
make additional clarifications and updates to terminology and references necessary for surveyors to use new datums when the National Geodetic Survey updates the National Spatial Reference System.
ANALYSIS:
Existing law:
- Establishes the Board of Professional Engineers, Land Surveyors and Geologists (Board) within the Department of Consumer Affairs to license and regulate professional land surveyors in California.
- Provides for the Land Surveyors Act, which defines the practice of land surveying, prescribes the contents of a “record of survey,” and establishes violations that are enforced by the Board.
- Establishes the “official geodetic datums and spatial reference network” as the state’s official spatial measurement system used in land surveying and mapping.
This bill:
- Provides for the use of additional specified measurement models in the state’s official spatial measurement reference system for purposes of land surveying and mapping.
- Specifies that the California portion of the system of plane coordinates defined as the State Plane Coordinates System of 2022 (SPCS2022) established by the National Geodetic Survey (NGS) and maintained by either NGS or the California Spatial Reference Center (CSRC) shall be known as CCS2022.
- Updates references and definitions in current law to account for new datums when the National Geodatic Survey updates the National Spatial Reference System.
- Makes numerous other technical and conforming changes.
Background
Land surveying is the science and practice of accurately determining the position of points in three-dimensional space and the angles and distances between them. It is required in the planning and execution of nearly every form of construction and is commonly used in the fields of transportation, building construction, communications, mapping, and to establish land boundaries for legal ownership.
The National Geodetic Survey (NGS), administered by the National Oceanic and Atmospheric Administration, defines and manages the National Spatial Reference System (NSRS), which measures latitude, longitude, height, scale, gravity, and orientation, throughout the United States. The NGS collaborates with surveyors in both the public and private sectors to place hundreds of thousands of survey marks, known as reference points, throughout the country and determine positional information for each point. These reference points form the fundamental dataset for a survey reference frame. Collectively, these reference frames, or “datums,” are used to form the NSRS, which surveyors and others use to ensure that positional coordinates are compatible with those determined by others to create maps; mark off property boundaries; and plan, design, and build roads, bridges, and other structures.
In 2008, the NGS announced its plan to replace the country’s two national datums, the North American Datum of 1983, the geometric datum used mainly for horizontal positions, and the North American Vertical Datum of 1988, the vertical datum used for determining elevations, with less static spatial reference systems by 2022.
According to the NGS, the new reference frames of 2022 are consistent with the accuracy of measurements provided by the Global Navigation Satellite System (GNSS). This increased accuracy is achieved in part because the GNSS satellites orbit around the earth’s center of mass, and the new reference frames correspond with that geocenter.
Recognizing that the nature of surveying has changed dramatically with the use of sophisticated surveying equipment and techniques, such as the GNSS, the California Land Surveyors Association wants to ensure that California’s official spatial measurement reference system, which is modeled after the NSRS, allows for the use of these updated measurement models as recommended by the NGS.
FISCAL EFFECT: Appropriation: No Fiscal Com.: Yes Local: No
According to the Assembly Appropriations Committee, SB 566 has no anticipated state costs.
SUPPORT: (Verified 6/27/23)
California Land Surveyors Association
OPPOSITION: (Verified 6/27/23)
None received
ARGUMENTS IN SUPPORT: According to the author, “The old reference frames in state law for land surveying and mapping have become outdated and the physical survey marks they rely on are getting harder to access and maintain because they deteriorate over time. The new reference frames authorized for use in this bill will rely primarily on global satellite systems and other updated models that better reflect the dynamic geophysical processes involved in spatial measurements and adjust with the Earth’s movements to help keep measurements accurate.”
ASSEMBLY FLOOR: 78-0, 6/27/23
AYES: Addis, Aguiar-Curry, Alanis, Alvarez, Arambula, Bains, Bauer-Kahan, Bennett, Berman, Boerner, Bonta, Bryan, Calderon, Juan Carrillo, Wendy Carrillo, Cervantes, Chen, Connolly, Megan Dahle, Davies, Dixon, Essayli, Flora, Mike Fong, Vince Fong, Friedman, Gabriel, Gallagher, Garcia, Gipson, Grayson, Haney, Hart, Holden, Hoover, Irwin, Jackson, Jones-Sawyer, Kalra, Lackey, Lee, Low, Lowenthal, Maienschein, Mathis, McCarty, McKinnor, Muratsuchi, Stephanie Nguyen, Ortega, Pacheco, Papan, Jim Patterson, Joe Patterson, Pellerin, Petrie-Norris, Quirk-Silva, Ramos, Reyes, Luz Rivas, Robert Rivas, Rodriguez, Blanca Rubio, Sanchez, Santiago, Schiavo, Soria, Ta, Ting, Valencia, Villapudua, Waldron, Wallis, Ward, Weber, Wicks, Wood, Rendon
NO VOTE RECORDED: Wilson, Zbur
Prepared by: Cassie Royce / GOV. & F. / (916) 651-4119
6/28/23 14:24:39
**** END ****
Date of Hearing: June 21, 2023
ASSEMBLY COMMITTEE ON APPROPRIATIONS
Chris Holden, Chair
SBPCA Bill Id:SB 566
Author:(Jones) – As Amended Ver:May 30, 2023
Policy Committee: | Local Government | Vote: | 8 - 0 |
|
| ||
|
|
Urgency: No State Mandated Local Program: No Reimbursable: No
SUMMARY:
This bill updates the official geodetic datums and spatial reference network used in the state for land surveying and mapping by authorizing the use of additional geographical measurement systems.
Specifically, this bill additionally authorizes the use of the North American Terrestrial Reference Frame of 2022, the Pacific Terrestrial Reference Frame of 2022, the California Coordinate System of 2022, and the North American-Pacific Geopotential Datum of 2022 for use within the state for purposes of land surveying and mapping.
FISCAL EFFECT:
No anticipated state costs.
COMMENTS:
- Purpose. This bill is sponsored by the California Land Surveyors Association. According to the author:
The old reference frames in state law for land surveying and mapping have become outdated and the physical survey marks they rely on are getting harder to access and maintain because they deteriorate over time. The new reference frames authorized for use in this bill will rely primarily on global satellite systems and other updated models that better reflect the dynamic geophysical processes involved in spatial measurements and adjust with the Earth’s movements to help keep measurements accurate.
- Background. Land surveying is the science and practice of accurately determining the position of points in three-dimensional space and the angles and distances between them. It is required in the planning and execution of nearly every form of construction and is commonly used in the fields of transportation, building construction, communications, and mapping and to establish land boundaries for legal ownership. Professional land surveyors in California are licensed and regulated by the Board of Professional Engineers, Land Surveyors and Geologists within the Department of Consumer Affairs according to requirements set forth in the Land Surveyors Act.
Existing state law establishes a geographical measurement system used in surveying and mapping, known as the official geodetic datums and spatial reference network, including the North American Datum of 1983 (NAD 83), for horizontal reference points, and the North American Vertical Datum of 1988 (NAVD 88), for vertical reference points.
The National Geodetic Survey (NGS), administered by the National Oceanic and Atmospheric Administration, defines and manages the National Spatial Reference System (NSRS), which measures latitude, longitude, height, scale, gravity, and orientation throughout the United States. The NGS collaborates with surveyors in both the public and private sectors to place hundreds of thousands of survey marks, known as reference points, throughout the country and determine positional information for each point. Collectively, these reference frames, or “datums,” are used to form the NSRS, which surveyors and others use to ensure positional coordinates are compatible with those determined by others to create maps; mark off property boundaries; and plan, design, and build roads, bridges, and other structures.
More recently, NGS has fostered a network of continuously operating reference stations (CORS) where each CORS includes a highly accurate receiver that continuously collects radio signals broadcast by Global Navigation Satellite System (GNSS) satellites. In 2008, the NGS announced its plan to replace the country’s two national datums (NAD 83 and NAVD 88) with less static spatial reference systems by 2022. According to the NGS, the new reference frames of 2022 are consistent with the accuracy of measurements provided by the GNSS.
This bill updates the Public Resources Code references to the state’s official geodetic datums and special reference network to allow for the use of the new federal reference frames and systems in land surveying and mapping.
Analysis Prepared by: Jennifer Swenson / APPR. / (916) 319-2081
Date of Hearing: June 7, 2023
ASSEMBLY COMMITTEE ON LOCAL GOVERNMENT
Cecilia Aguiar-Curry, Chair
SBPCA Bill Id:SB 566
Author:(Jones) – As Amended Ver:May 30, 2023
SENATE VOTE: 37-0
SUBJECT: Geodetic datums and spatial reference network.
SUMMARY: Authorizes the use of additional geographical measurement systems for the purposes of surveying and mapping. Specifically, this bill:
- Defines the following terms:
- “NATRF2022” to mean the North American Terrestrial Reference Frame of 2022.
- “PATRF2022” to mean the Pacific Terrestrial Reference Frame of 2022.
- “CCS2022” to mean the California Coordinate System of 2022.
- “NSRS” to mean the National Spatial Reference System.
- “NAPGD2022” to mean the North American-Pacific Geopotential Datum of 2022.
- Specifies that the California portion of the system of plane coordinates defined as the State Plane Coordinates System of 2022 (SPCS2022) established by the National Geodetic Survey (NGS) and maintained by either NGS or the California Spatial Reference Center (CSRC) shall be known as CCS2022.
- Provides that the use of the term “State Plane Coordinates” additionally refers to CCS2022.
- Specifies that for CCS2022, the official conversion, commonly called the international foot, shall be used (one foot equals 0.3048 meters).
- Provides that after January 1, 2025, new surveys and mapping projects may be based upon CCS2022.
- Specifies that the official geodetic datum to which horizontal portions and ellipsoid heights are referenced within the State of California shall also be NATRF2022 or PATRF2022.
- Provides that the official geodetic datum to which orthometric heights are referenced within the State of California shall also be NAPGD2022.
- Specifies that the use of NATRF2022, PATRF2022, and NAPGD2022 by any person, firm, or governmental agency is optional.
- Makes numerous other technical and conforming changes.
FISCAL EFFECT: According to the Senate Appropriations Committee, pursuant to Senate Rule 28.8, negligible state costs.
COMMENTS:
- Bill Summary and Author’s Statement. This bill authorizes the use of NATRF2022, PATRF2022, NAPGD2022, and CCS2022 for the purposes of surveying and mapping. This bill also make numerous technical and conforming changes. The California Land Surveyors Association is the sponsor of this bill.
According to the author, “The old reference frames in state law for land surveying and mapping have become outdated and the physical survey marks they rely on are getting harder to access and maintain because they deteriorate over time. The new reference frames authorized for use in this bill will rely primarily on global satellite systems and other updated models that better reflect the dynamic geophysical processes involved in spatial measurements and adjust with the Earth’s movements to help keep measurements accurate.”
- Land Surveying. Land surveying is the science and practice of accurately determining the position of points in three-dimensional space and the angles and distances between them. It is required in the planning and execution of nearly every form of construction and is commonly used in the fields of transportation, building construction, communications, mapping, and to establish land boundaries for legal ownership. Professional land surveyors in California are licensed and regulated by the Board of Professional Engineers, Land Surveyors and Geologists (Board) within the Department of Consumer Affairs according to requirements set forth in the Land Surveyors Act (Act).
Geodetic surveying is defined as performing surveys, in which account is taken of the figure and size of the earth to determine or predetermine the horizontal or vertical positions of fixed objects thereon or related thereto, geodetic control points, monuments, or stations for use in the practice of land surveying or for stating the position of fixed objects, geodetic control points, monuments, or stations by California Coordinate System coordinates.
- National Geodetic Survey. NGS, administered by the National Oceanic and Atmospheric Administration under the United States Department of Commerce, maintains and provides access to the National Spatial Reference System (NSRS). The NSRS provides a consistent coordinate system that defines latitude, longitude, height, scale, gravity, and orientation throughout the United States and its territories and is designed to meet economic, social, and environmental needs.
According to NGS, “For 200 years, NGS and its predecessor agencies have collaborated with public and private organizations to establish reference stations at precisely determined locations. Traditionally, these locations have been identified by setting a survey mark—usually a brass, bronze, or aluminum disk. Locations might also be identified by a deeply driven rod or a prominent object, such as a water tower or church spire. More recently, NGS has fostered a network of continuously operating reference stations (CORS) where each CORS includes a highly accurate receiver that continuously collects radio signals broadcast by Global Navigation Satellite System (GNSS) satellites. The reference stations form a network used to accurately position other points of interest. Surveyors, mapping professionals, and others use the NSRS to ensure their positional coordinates are compatible with those determined by others. In this way, when individuals create maps; mark property boundaries; and plan, design, and build roads, bridges, and other structures, everything matches up.”
NGS began the process to modernize the NSRS in 2007 and adopted a 10-year modernization plan in 2008. In 2013, NGS revised the modernization plan and delayed the release of the updated NSRS until 2022. NGS noted that, since 2017, operational, workforce, and other issues have arisen, causing NGS to recently re-evaluate whether a successful roll-out by 2022 is possible, saying, “it is not out of the question to consider a complete roll-out of the modernized NSRS to be somewhere in the 2024–2025 timeframe.”
- Prior Legislation. SB 414 (Jones), Chapter 106, Statutes of 2021, made a series of largely technical and conforming changes to laws relating to land surveying and the Land Surveyors Act. Additionally, since 2019, the Legislature has adopted numerous resolutions designating a week in March as National Surveyors Week, including, most recently, Senate Resolution 19 (Wilk) of this year.
- Arguments in Support. According to the California Land Surveyors Association, “Current law establishes a geographical measurement system used in surveying and mapping known as ‘the official geodetic datums and spatial reference network.’ This includes the North American Datum of 1983 (NAD 83) and the North American Vertical Datum of 1988 (NAVD 88). The National Spatial Reference System (NSRS), managed by the National Geodetic Survey (NGS), is a coordinate system that includes latitude, longitude, elevation, and other values. The NSRS consists of a National Shoreline, a Global Positioning System (GPS), a network of permanently marked points, and a set of models that describe dynamic geophysical processes affecting spatial measurements.
“Until 2022, the system has been based on NAD 83 and NAVD 88. The old reference frames have become outdated and are getting harder to access and maintain because they rely on physical survey marks that deteriorate over time. To improve the NSRS, the NGS will replace all three NAD 83 frames and all vertical datums, including the NAVD 88, with new terrestrial reference frames and a geopotential datum. The new reference frames will rely primarily on Global Navigation Satellite Systems (GNSS), such as GPS, and a gravimetric geoid model resulting from our Gravity for the Redefinition of the American Vertical Datum (GRAV-D) Project.
“SB 566 will simply authorize using updated measurement systems, including the North American Terrestrial Reference Frame of 2022, the Pacific Terrestrial Reference Frame of 2022, and the North American- Pacific Geopotential Datum of 2022 for land surveying and mapping.”
- Arguments in Opposition. None on file.
REGISTERED SUPPORT / OPPOSITION:
Support
California Land Surveyors Association [SPONSOR]
Opposition
None on file
Analysis Prepared by: Jimmy MacDonald / L. GOV. / (916) 319-3958
SENATE RULES COMMITTEE Office of Senate Floor Analyses (916) 651-1520 Fax: (916) 327-4478 | SB 566 |
CONSENT
Bill No: SB 566
Author: Jones (R)
Introduced: 2/15/23
Vote: 21
SENATE GOVERNANCE & FIN. COMMITTEE: 8-0, 4/12/23
AYES: Caballero, Seyarto, Blakespear, Dahle, Durazo, Glazer, Skinner, Wiener
SENATE APPROPRIATIONS COMMITTEE: Senate Rule 28.8
SUBJECT: Geodetic datums and spatial reference network
SOURCE: California Land Surveyors Association
DIGEST:
This bill authorizes the use of additional geographic measurement models in the state’s official reference system for land surveying and mapping.
ANALYSIS:
Existing law:
- Establishes the Board of Professional Engineers, Land Surveyors and Geologists within the Department of Consumer Affairs to license and regulate professional land surveyors in California.
- Provides for the Land Surveyors Act, which defines the practice of land surveying, prescribes the contents of a “record of survey,” and establishes violations that are enforced by the Board.
- Establishes the “official geodetic datums and spatial reference network” as the state’s official spatial measurement system used in land surveying and mapping.
This bill provides for the use of additional specified measurement models in the state’s official spatial measurement reference system for purposes of land surveying and mapping.
Background
Land surveying is the science and practice of accurately determining the position of points in three-dimensional space and the angles and distances between them. It is required in the planning and execution of nearly every form of construction and is commonly used in the fields of transportation, building construction, communications, mapping, and to establish land boundaries for legal ownership.
The National Geodetic Survey (NGS), administered by the National Oceanic and Atmospheric Administration, defines and manages the National Spatial Reference System (NSRS), which measures latitude, longitude, height, scale, gravity, and orientation, throughout the United States. The NGS collaborates with surveyors in both the public and private sectors to place hundreds of thousands of survey marks, known as reference points, throughout the country and determine positional information for each point. These reference points form the fundamental dataset for a survey reference frame. Collectively, these reference frames, or “datums,” are used to form the NSRS, which surveyors and others use to ensure that positional coordinates are compatible with those determined by others to create maps; mark off property boundaries; and plan, design, and build roads, bridges, and other structures.
In 2008, the NGS announced its plan to replace the country’s two national datums, the North American Datum of 1983, the geometric datum used mainly for horizontal positions, and the North American Vertical Datum of 1988, the vertical datum used for determining elevations, with less static spatial reference systems by 2022.
According to the NGS, the new reference frames of 2022 are consistent with the accuracy of measurements provided by the Global Navigation Satellite System (GNSS). This increased accuracy is achieved in part because the GNSS satellites orbit around the earth’s center of mass, and the new reference frames correspond with that geocenter.
Recognizing that the nature of surveying has changed dramatically with the use of sophisticated surveying equipment and techniques, such as the GNSS, the California Land Surveyors Association wants to ensure that California’s official spatial measurement reference system, which is modeled after the NSRS, allows for the use of these updated measurement models as recommended by the NGS.
Comments
Purpose of the bill. According to the author, “The old reference frames in state law for land surveying and mapping have become outdated and the physical survey marks they rely on are getting harder to access and maintain because they deteriorate over time. The new reference frames authorized for use in this bill will rely primarily on global satellite systems and other updated models that better reflect the dynamic geophysical processes involved in spatial measurements and adjust with the Earth’s movements to help keep measurements accurate.”
FISCAL EFFECT: Appropriation: No Fiscal Com.: Yes Local: No
SUPPORT: (Verified 4/24/23)
California Land Surveyors Association (source)
OPPOSITION: (Verified 4/24/23)
None received
ARGUMENTS IN SUPPORT: According to the California Land Surveyors Association, “SB 566 will simply authorize using updated measurement systems, including the North American Terrestrial Reference Frame of 2022, the Pacific Terrestrial Reference Frame of 2022, and the North American- Pacific Geopotential Datum of 2022 for land surveying and mapping.”
Prepared by: Cassie Royce / GOV. & F. / (916) 651-4119
4/26/23 15:11:52
**** END ****
SENATE COMMITTEE ON GOVERNANCE AND FINANCE
Senator Anna M. Caballero, Chair
2023 - 2024 Regular
Bill No: | SB 566 | Hearing Date: | 4/12/23 |
Author: | Jones | Tax Levy: | No |
Version: | 2/15/23 | Fiscal: | Yes |
Consultant: | Royce, Favorini-Csorba | ||
Geodetic datums and spatial reference network
Authorizes the use of additional geographic measurement models in the state’s official reference system for land surveying and mapping.
Background
Land surveying. Land surveying is the science and practice of accurately determining the position of points in three-dimensional space and the angles and distances between them. It is required in the planning and execution of nearly every form of construction and is commonly used in the fields of transportation, building construction, communications, mapping, and to establish land boundaries for legal ownership.
Professional land surveyors in California are licensed and regulated by the Board of Professional Engineers, Land Surveyors and Geologists (Board) within the Department of Consumer Affairs according to requirements set forth in the Land Surveyors Act (Act). The Act defines the practice of land surveying, prescribes the contents of a “record of survey,” and establishes violations that are enforced by the Board.
National Geodetic Survey. The National Geodetic Survey (NGS), administered by the National Oceanic and Atmospheric Administration, defines and manages the National Spatial Reference System (NSRS), which measures latitude, longitude, height, scale, gravity, and orientation, throughout the United States. The NGS collaborates with surveyors in both the public and private sectors to place hundreds of thousands of survey marks, known as reference points, throughout the country and determine positional information for each point. These reference points form the fundamental dataset for a survey reference frame. Collectively, these reference frames, or “datums,” are used to form the NSRS, which surveyors and others use to ensure that positional coordinates are compatible with those determined by others to create maps; mark off property boundaries; and plan, design, and build roads, bridges, and other structures.
In 2008, the NGS announced its plan to replace the country’s two national datums, the North American Datum of 1983, the geometric datum used mainly for horizontal positions, and the North American Vertical Datum of 1988, the vertical datum used for determining elevations, with less static spatial reference systems by 2022.
According to the NGS, the new reference frames of 2022 are consistent with the accuracy of measurements provided by the Global Navigation Satellite System (GNSS). This increased accuracy is achieved in part because the GNSS satellites orbit around the earth’s center of mass, and the new reference frames correspond with that geocenter.
Recognizing that the nature of surveying has changed dramatically with the use of sophisticated surveying equipment and techniques, such as the GNSS, the California Land Surveyors Association wants to ensure that California’s official spatial measurement reference system, which is modeled after the NSRS, allows for the use of these updated measurement models as recommended by the NGS.
Proposed Law
Senate Bill 566 provides for the use of additional specified measurement models in the state’s official spatial measurement reference system for purposes of land surveying and mapping.
State Revenue Impact
No estimate.
Comments
1. Purpose of the bill. According to the author, “The old reference frames in state law for land surveying and mapping have become outdated and the physical survey marks they rely on are getting harder to access and maintain because they deteriorate over time. The new reference frames authorized for use in this bill will rely primarily on global satellite systems and other updated models that better reflect the dynamic geophysical processes involved in spatial measurements and adjust with the Earth’s movements to help keep measurements accurate.”
2. Prior legislation. SB 414 (Jones, 2021) makes a series of largely technical and conforming changes to laws relating to land surveying and the Land Surveyors Act. Additionally, since 2019, the Legislature has adopted numerous resolutions designating a week in March as National Surveyors Week, including, most recently, Senate Resolution 19 (Wilk).
Support and Opposition
(4/7/23)
Support: California Land Surveyors Association (Sponsor)
Opposition: None submitted.
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Bill Author
Bill Co-Author(s):