Public Resources Code section 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.

Source: Section 8815.2, https://leginfo.­legislature.­ca.­gov/faces/codes_displaySection.­xhtml?lawCode=PRC§ionNum=8815.­2.­ (updated Jan. 1, 2024; accessed Dec. 29, 2025).

Green check means up to date. Up to date

Verified:
Dec. 29, 2025

§ 8815.2's source at ca​.gov