California Code, Government Code - GOV § 970.1

(a) A judgment is enforceable until 10 years after the time the judgment becomes final or, if the judgment is payable in installments, until 10 years after the final installment becomes due.

(b) A judgment, whether or not final, is not enforceable under Title 9 (commencing with Section 680.010) of Part 2 of the Code of Civil Procedure but is enforceable under this article after it becomes final.

(c) Unless another statute provides a different interest rate, interest on a tax or fee judgment against a local public entity shall accrue at a rate equal to the weekly average one year constant maturity United States Treasury yield at the time of the judgment plus 2 percent, but shall not exceed 7 percent per annum.