The Governor's Office maintains a file for each legislative bill that is chaptered (signed into law) or vetoed. These files typically contain analyses by the Legislative Counsel, Attorney General, other constitutional officers, state agencies, and the Governor's staff. Correspondence from bill authors and affected organizations and individuals are also often included. Vetoed bill files include the Governor's veto message.
Find these files for 1943-2010 on microfilm located in Micro Room, LL205 (Case 18.)
Microfilm is not available for 2011 forward. Researchers can request GCBFs from the California State Archives