I was born and raised in California and I remember when we basically had 2 deer hunting seasons....early & late. The early season started in August and was basically the coastal areas. The late season opened in the middle of September and ran until the end of October. In the 1960's Fish & Game started to manage the deer by "herds" and started to break the state up into zones, primarily in the high hunter demand areas. They later started the drawing system and limited the number of tags in some of the zones. They pretty much do it the same now as most of the western states. Points, limited tags and staggered seasons, depending on the area.
I left California in 2000 when I retired and have hunted some with friends and family back in California since then. The state does a pretty good job researching the big game herds, but the deer numbers have suffered. Too many lions, urban sprawl and drought have really taken a toll on them.