Section 22221 Of Chapter 3. Retirement Board From California Education Code >> Division 1. >> Title 1. >> Part 13. >> Chapter 3.

. The board shall adopt, upon the recommendation of the actuary of the system, any mortality and other tables and interest rates necessary to do the following:
  (a) Permit valuation of the assets and liabilities of the system.
  (b) Make any determination or calculation necessary to carry out this part.