California Code, Government Code - GOV § 9765

Preparation of the statutes shall include the making of an index and statutory record, and the delivery thereof to the State Printing Office as soon as practicable after final adjournment of the Legislature. The date of approval or adoption of each act and its effective date shall be prefixed to its text. The cost of preparation shall be paid from the same source as the cost of printing and publishing the statutes is paid.