Phase 1 – Effective July 1, 2015, nonlead ammunition will be required when taking Nelson bighorn sheep and all wildlife on CDFW wildlife areas and ecological reserves.
Phase 2 – Effective July 1, 2016, nonlead shot will be required when taking upland game birds with a shotgun, except for dove, quail, snipe, and any game birds taken on licensed game bird clubs. In addition, nonlead shot will be required when using a shotgun to take resident small game mammals, furbearing mammals, nongame mammals, nongame birds, and any wildlife for depredation purposes.
Phase 3 – Effective July 1, 2019, nonlead ammunition will be required when taking any wildlife with a firearm anywhere in California.
Existing restrictions on the use of lead ammunition in the California condor range remain in effect while implementation proceeds.
https://www.wildlife.ca.gov/hunting/nonlead-ammunition