Four-digit numeric codes for the State Plane
Coordinate Systems based on the North American Datum of 1927 are found in
Department of Commerce, 1986, Representation of geographic point locations
for information interchange (Federal Information Processing Standard 70-1):
Washington: Department of Commerce, National Institute of Standards and
Technology.
Codes for the State Plane Coordinate Systems based on the North
American Datum of 1983 are found in Department of Commerce, 1989 (January),
State Plane Coordinate System of 1983 (National Oceanic and Atmospheric
Administration Manual NOS NGS 5): Silver Spring, Maryland, National Oceanic
and Atmospheric Administration, National Ocean Service, Coast and Geodetic
Survey.
State Plane Coordinate System