No agricultural operation or any of its appurtenances may be deemed to be a nuisance, private or public, by any changed conditions in the locality of the operation or its appurtenances, after the operation has been in existence for more than one year, if the operation was not a nuisance at the time the operation began.

Any agricultural operation protected pursuant to this section may reasonably expand its operation, without losing its protected status, if all county, municipal, state, and federal environmental codes, laws, and regulations are met by the agricultural operation.

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The protected status of an agricultural operation, once acquired, is assignable, alienable, and inheritable. The protected status of an agricultural operation, once acquired, may not be waived by the temporary cessation of farming, by diminishing the size of the operation, or by a change in the type of feeding operation or crop produced.

This section does not apply if a nuisance results from the negligent or improper operation of an agricultural operation or its appurtenances.

Source: SL 1991, ch 183, § 2; SL 1994, ch 162; SDCL § 21-10-25.2; SL 2023, ch 65, §§ 2, 8.