Cal. Gov. Code § 20199
The board shall establish a building account for the transfer of money that is continuously appropriated for that purpose from the retirement fund for the cost of the acquisition of real property, the construction or remodeling of buildings and improvements thereon, the maintenance, repair, and improvement thereof, and for other necessary operational expenses.
For accounting purposes the board shall pay to the building account an amount sufficient to repay all costs for construction and maintenance of space used by the board. Other amounts or contributions received shall be deposited in the building account and disbursed as provided in this section.
The board may contract with the Department of General Services for the purchase of insurance against loss of, or damage to, the property or the loss of use or occupancy of the building, liability insurance and other insurance as is customarily carried on state office buildings. Premiums for the insurance shall be paid from the building account.
Money in the building account that is in excess of current needs shall be paid into the retirement fund monthly. The land, building, equipment, and improvements thereon, shall constitute an asset in the retirement fund and shall be carried on the books thereof as such in accordance with generally accepted accounting practices.
Ca. Gov. Code § 20199