CA Civ Code § 3482.6 (2021)
2021 California Code|Civil Code - CIV|DIVISION 4 - GENERAL PROVISIONS|PART 3 - NUISANCE|TITLE 1 - GENERAL PRINCIPLES|Section 3482.6.

3482.6.  (a) No agricultural processing activity, operation, facility, or appurtenances thereof, conducted or maintained for commercial purposes, and in a manner consistent with proper and accepted customs and standards, shall be or become a nuisance, private or public, due to any changed condition in or about the locality, after it has been in continuous operation for more than three years if it was not a nuisance at the time it began.(b) If an agricultural processing activity, operation, facility, or appurtenances thereof substantially increases its activities or operations after January 1, 1993, then a public or private nuisance action may be brought with respect to those increases in activities or operations that have a significant effect on the environment. For increases in activities or operations that have been in effect more than three years, there is a rebuttable presumption affecting the burden of producing evidence that the increase was not substantial.(c) This section does not supersede any other provision of law, except other provisions of this part, if the agricultural processing activity, operation, facility, or appurtenances thereof, constitute a nuisance, public or private, as specifically defined or described in the provision.(d) This section prevails over any contrary provision of any ordinance or regulation of any city, county, city and county, or other political subdivision of the state, except regulations adopted pursuant to Section 41700 of the Health and Safety Code as applied to agricultural processing activities, operations, facilities, or appurtenances thereof that are surrounded by housing or commercial development on January 1, 1993. However, nothing in this section precludes a city, county, city and county, or other political subdivision of this state, acting within its constitutional or statutory authority and not in conflict with other provisions of state law, from adopting an ordinance that allows notification to a prospective homeowner that the dwelling is in close proximity to an agricultural processing activity, operation, facility, or appurtenances thereof and is subject to provisions of this section consistent with Section 1102.6a.(e) For the purposes of this section, the following definitions apply:(1) “Agricultural processing activity, operation, facility, or appurtenances thereof” includes, but is not limited to rendering plants licensed pursuant to Section 19300 of the Food and Agricultural Code and collection centers licensed pursuant to Section 19300.5 of the Food and Agricultural Code, the canning or freezing of agricultural products, the processing of dairy products, the production and bottling of beer and wine, the processing of meat and egg products, the drying of fruits and grains, the packing and cooling of fruits and vegetables, and the storage or warehousing of any agricultural products, and includes processing for wholesale or retail markets of agricultural products.(2) “Continuous operation” means at least 30 days of agricultural processing operations per year.(3) “Proper and accepted customs and standards” means the compliance with all applicable state and federal statutes and regulations governing the operation of the agricultural processing activity, operation, facility, or appurtenances thereof with respect to the condition or effect alleged to be a nuisance.(f) This section does not apply to any litigation pending or cause of action accruing prior to January 1, 1993.(Amended by Stats. 1999, Ch. 329, Sec. 1. Effective January 1, 2000.)