California Code, Government Code - GOV § 51244.5

Notwithstanding the provisions of Section 51244, if the initial term of the contract is for more than 10 years, the contract may provide that on the anniversary date of the contract or such other annual date as specified by the contract beginning with the anniversary date on which the contract will have an unexpired term of nine years, a year shall be added automatically to the initial term unless notice of nonrenewal is given as provided in Section 51245.