California Public Resources Code Section 8803

Zone 1 coordinates shall be named, and, on any map on which they are used, they shall be designated as CCS27, Zone 1 or CCS83, Zone 1. On their respective spheroids of reference: (1) the standard parallels of CCS27, Zone 1 and CCS83, Zone 1 are at north latitudes 40 degrees 00 minutes and 41 degrees 40 minutes, along which parallels the scale shall be exact; and (2) the point of control of coordinates is at the intersection of the zone`s central meridian, which is at 122 degrees 00 minutes west longitude, with the parallel 39 degrees 20 minutes north latitude.