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.
(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.