Glossary

Leash law

A local or state rule that requires a dog to be on a leash or under control in public, with set exceptions such as designated off-leash areas.

Also called: leash laws, dog at large, dogs at large, running at large, leash ordinance, leash requirement

A leash law requires owners to keep a dog on a leash, or otherwise under control, when off their own property. Most are set by cities and counties, though some states and parks add their own rules. The term dog at large means a dog that is loose without control, and owners can be fined for it. Some places set a maximum leash length, such as six feet.

Most laws have exceptions. Many communities have fenced dog parks or marked off-leash hours, and working dogs, such as herding dogs on a farm, may be exempt. Rules often differ from one park or beach to the next, so signs matter.

A leash law protects people, wildlife, other dogs and the dog itself. If an unleashed dog causes an injury, the owner can also face liability under a dangerous dog law or a strict liability for dog bites statute. Check with local animal control for the rules where you live or travel.

Last reviewed November 8, 2026

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Related terms

Off-leash When a dog is allowed to move without a leash, legal only in places that permit it, such as fenced dog parks, some trails and private land. Dog park A public fenced area where dogs can play off leash, usually with separate sections for small and large dogs and rules for owners. Dog license A local government registration of a dog, often required by law, usually needing proof of rabies vaccination and giving a tag that helps return a lost dog. Dangerous dog law A law that lets authorities declare a dog dangerous after an attack or threat and set conditions for its owner, such as an enclosure, muzzle or insurance.