Pooper-scooper

Animal Defecation ("pooper scooper" law) (Montgomery County Code, Sec. 5-203(a)(2)
An owner must not allow an animal to damage or defecate on property outside of the owner's property. An animal may defecate on public property or the common area of property in which the owner shares an interest if the owner immediately removes and disposes of the feces by a sanitary method approved by the Director. Feces may be picked up in a plastic bag. If this bag is placed inside another plastic bag, it may be put out for disposal in your normal household trash.
Penalty for Violation - $100

We also have several other Animal Control Laws:

Dangerous Animals
A person may not possess any wild animal or any animal that has been declared to be dangerous.

An animal is deemed to be dangerous if it has without provocation killed or inflicted severe injury on a person; if it poses a physical threat to humans because of specific training or demonstrated behavior; or if its bite is poisonous.

An animal is deemed to be potentially dangerous if it has inflicted a bite on a person either on public or private real property or has killed or inflicted severe injury to a domestic animal when not on the owner's property or has attacked without provocation. An animal which has been declared to be potentially dangerous and subsequently engages in one of these behaviors again will then be deemed to be dangerous. Animals which have been declared dangerous or potentially dangerous by other jurisdictions must be removed from Montgomery County unless the Division Director waives the requirement and imposes restrictions for the animal to remain in the County.

Animals which have been deemed to be dangerous must be kept confined in a secure enclosure to prevent direct contact with humans or other animals, and must be leashed and muzzled, and under the control of a person at least 18 years old who is physically able to restrain the animal any time it is removed from the owner's property. An animal which has been declared to be vicious or dangerous by the Director or the Animal Matters Hearing Board may have additional restrictions imposed.
Penalty for failing to keep a dangerous animal confined -- $500 - $2500 and/or impoundment of the animal.

Vaccination and licensing requirements (Montgomery County Code, Sec. 5-203(a)(9)
All dogs and cats 4 months of age or older must have a current rabies vaccination and a County license. The rabies tag provided by your veterinarian is NOT a County license -- the license must be purchased separately. To download a licensing application, click here.

Penalty for Violation of licensing laws - $100

Animal Trespass
An owner must not allow an animal to enter private property without the property owner's permission.
Penalty for Violation - $100

Animal Noise
An owner must not allow an animal to cause noise that is loud enough and persistent enough to disturb another person's quiet enjoyment.
Penalty for Violation - $100

Dogs on School Grounds and Recreations Areas
An owner must not allow a dog to be on public school grounds on a day when school is in session, or in a public recreation area during an organized activity, unless the dog is controlled by a leash or similar restraining device. This does not apply if the dog is participating in an activity such as obedience or agility training if the owner or sponsor of the activity has permission from the agency controlling the school or recreation area.
Penalty for Violation - $100

Other Animal Public Nuisance Laws:
Female animal in heat - An owner must not allow a female dog or cat in heat to be outside a building or other secure enclosure that prevents attraction of other animals.
Unsanitary conditions - An owner must not allow an animal to cause an unsanitary, dangerous or offensive condition because of the size or number of animals kept in a single location or because a facility is not appropriate for the animal or properly maintained.
Aviaries - An owner must not allow a domestic or exotic bird, including a homing pigeon, to be in an aviary within 100 feet of any structure used for human habitation or work. This does not apply to a bird inside the owner's dwelling, in a pet shop, in an agricultural area, or in a market for less than 24 hours for sale for human consumption.
Penalty for Violation - $100