California Public Resources Code Section 8806

Zone 4 coordinates shall be named, and, on any map on which they are used, they shall be designated as CCS27, Zone 4 or CCS83, Zone 4. On their respective spheroids of reference: (1) the standard parallels of CCS27, Zone 4 and CCS83, Zone 4 are at north latitudes 36 degrees 00 minutes and 37 degrees 15 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 119 degrees 00 minutes west longitude, with the parallel 35 degrees 20 minutes north latitude.