South Dakota state law: breed restrictions (BSL preempted)

SDCL 40-34-16 is the controlling statewide preemption. The full text reads: 'No local government, including a unit of local government with a home rule charter or its equivalent, may enact, maintain, or enforce any ordinance, policy, resolution, or other enactment that is specific as to the breed or perceived breed of a dog. This section does not impair the right of any local government unit to enact, maintain, or enforce any form of regulation that applies to all dogs.' The phrase 'unit of local government with a home rule charter or its equivalent' was added specifically to reach Sioux Falls, Rapid City, and Watertown, which would otherwise have argued broader implied charter authority. The preemption also applies to 'perceived breed,' which forecloses the workaround of regulating dogs that 'appear to be' a banned breed. South Dakota still allows robust BREED-NEUTRAL dangerous-dog regulation. SDCL 40-34-13 declares any 'vicious dog' a public nuisance, and SDCL 40-34-14 defines a vicious dog as one that, when unprovoked, in a vicious or terrifying manner approaches in apparent attitude of attack, bites, inflicts injury, or otherwise attacks a human on streets, sidewalks, or public grounds — or that on private property attacks mail carriers/service workers entering with the owner's permission. Local governments may layer additional breed-neutral rules: muzzling in public, fenced enclosure with warning signage, mandatory microchipping, liability-insurance minimums (commonly $100,000-$300,000), spay/neuter for declared dangerous dogs, and prohibition on transfer to a new owner within the jurisdiction. These rules may include pit-bull-type dogs only if they apply to ALL dogs equally. The 2014 enactment of SDCL 40-34-16 invalidated any pre-existing South Dakota municipal breed ban. Several SD cities had previously banned pit bulls; those ordinances became unenforceable. Insurance carriers may still impose breed-specific policy exclusions — SDCL 40-34-16 binds governments, not private insurers.

Breed-specific local ordinances are unenforceable on their face under SDCL 40-34-16; attempted enforcement is subject to challenge in state district court (declaratory and injunctive relief) and potential § 1983 fees if enforcement implicates federal rights. Owners of dogs declared 'dangerous' under valid breed-neutral local rules face the operative city-set penalties (typically $250-$1,000 fines per violation, mandatory muzzle/enclosure, possible euthanasia order on second serious bite, and Class 1 misdemeanor exposure under SDCL 40-34-13 for maintaining a public nuisance). Failure to comply with a dangerous-dog order can lead to seizure and destruction of the dog under local ordinance and SDCL Chapter 40-34.