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Montgomery County, MD Animal Ordinances: Breed Restrictions (2026)

Significant Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

No breed-specific ban
conduct-based designation only
Declared dogs must be
muzzled and leashed when out
Dangerous-elsewhere removal deadline
10 days
Violation classification
Class A, up to $1,000
Enforcing agency
Montgomery County Animal Services

Summary

Montgomery County has no breed-specific ban. County Code § 5-202 declares an animal "dangerous" or "potentially dangerous" based on its conduct, not its breed, then imposes confinement and control conditions on the owner.

City-specific rules exist: Gaithersburg, and Rockville have their own breed restrictions rules that differ from Montgomery County's county-level regulations. If you live in one of those cities, check the city-specific page instead.

An animal is dangerous if the animal is: (A) a “dangerous dog” as defined in Md. Code, Criminal Law Article § 10-619; (B) any other animal that, without provocation, has killed or severely injured a person; (C) an animal that poses a physical threat to humans because of specific training or demonstrated behavior, or because the animal's bite is poisonous; or (D) a potentially dangerous animal that... attacks a person or animal without provocation.

Source: Montgomery County Municipal CodeView official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: 2026 S-90: Montgomery County Code contains legislation effective through May 7, 2026 | Zoning Updated Effective: April 13, 2026 | COMCOR Regulations effective as of July 1, 2026).

Full Breakdown

Rather than listing prohibited breeds, § 5-202 defines a dangerous animal by what it does: killing or severely injuring a person without provocation, being trained or having demonstrated aggressive behavior, or meeting Maryland's conduct-based "dangerous dog" definition (Md. Code, Crim. Law § 10-619). Once the Office of Animal Services or the Board declares an animal dangerous or potentially dangerous, the owner must keep it muzzled, leashed, and under an adult's control whenever it is released from confinement, and may face microchipping or other conditions. An animal declared dangerous in another jurisdiction must be removed from the County within 10 days unless waived.

Violations & Fines

Violating § 5-202 is a Class A civil violation under § 5-305(c)(2): up to $1,000 criminal fine or a $500 civil penalty ($750 for a repeat offense) per § 1-19, issued by Montgomery County Animal Services.

Frequently Asked Questions

Does Montgomery County ban pit bulls or other breeds?
No. County Code § 5-202 defines "dangerous" and "potentially dangerous" animals by their conduct, not breed, matching Maryland's removal of the pit-bull presumption from the state dangerous-dog statute.
What must an owner do once a dog is declared dangerous?
Keep it muzzled and leashed under an adult's control whenever released from confinement, and comply with any microchipping or other condition the Executive Director or Board imposes.
What if my dog was already declared dangerous somewhere else?
You must remove it from Montgomery County within 10 days of a citation or notice, unless the Executive Director grants a waiver and imposes County conditions instead.

Sources & Official References

Other rules in Montgomery County

All Montgomery County rules

How Montgomery County compares: Cities with No Dog Breed Restrictions·Compare Montgomery County to another location·View the Maryland animal ordinances overview

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