Cal. Gov. Code § 14885
In the year 1963 and in every fourth year thereafter the Office of State Printing shall, with the approval of the department, compile or cause to be compiled, published and distributed a State Blue Book.
The Blue Books shall be compiled following the convening of the session of the Legislature in the year for which the Blue Book is to be compiled and published and material therein pertaining to the Legislature shall be compiled under the direction of the Secretary of the Senate and the Chief Clerk of the Assembly as pertaining to their respective houses.
The Blue Book shall contain only such material as the Joint Committee on Legislative Organization finds to be appropriate.
The cost of such compilation, publication and distribution shall be paid from any appropriation made for that purpose.
Ca. Gov. Code § 14885