California Code, Public Resources Code - PRC § 8807

Zone 5 coordinates shall be named, and, on any map on which they are used, they shall be designated as “CCS27, Zone 5 or CCS83, Zone 5.”

On their respective spheroids of reference: (1) the standard parallels of CCS27, Zone 5 and CCS83, Zone 5 are at north latitudes 34 degrees 02 minutes and 35 degrees 28 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 118 degrees 00 minutes west longitude, with the parallel 33 degrees 30 minutes north latitude.