California Code, Government Code - GOV § 51246

(a) If the county or city or the landowner serves notice of intent in any year not to renew the contract, the existing contract shall remain in effect for the balance of the period remaining since the original execution or the last renewal of the contract, as the case may be.

(b) No city or county shall enter into a new contract or shall renew an existing contract on or after February 28, 1977, with respect to timberland zoned as timberland production. The city or county shall serve notice of its intent not to renew the contract as provided in this section.

(c) In order to meet the minimum acreage requirement of an agricultural preserve pursuant to Section 51230, land formerly within the agricultural preserve which is zoned as timberland production pursuant to Chapter 6.7 (commencing with Section 51100) may be taken into account.

(d) Notwithstanding any other provision of law, commencing with the lien date for the 1977-78 fiscal year all timberland within an existing contract which has been nonrenewed as mandated by this section shall be valued according to Section 423.5 of the Revenue and Taxation Code, succeeding to and including the lien date for the 1981-82 fiscal year. Commencing with the lien date for the 1982-83 fiscal year and on each lien date thereafter, such timberland shall be valued according to Section 434.5 of the Revenue and Taxation Code.