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Pet Licensing


By law, dogs and cats over 4 months of age must wear current rabies and pet license tags. It can save your pet's life. An immediately visible license tag on your pet's collar is the fastest way to be reunited with your lost pet and is only issued with proof of regular vaccination against the deadly rabies virus. The rabies tag issued by your veterinarian is NOT your County license!

When To Apply

If you own a dog or cat 4 months of age or older you are required by law to have both a valid rabies vaccination and a Montgomery County Pet License. These laws apply even if your pet is confined on private property.

Online Licensing for First-time or Renewal Application

Click here to visit the online pet licensing site for Montgomery County, Maryland. 
You must include proof of rabies vaccination by attaching either a cell phone photo or scanned copy of current rabies certificate.
Payment option: Credit Card

Other Ways to Obtain a License

In-person: Payment options: Cash, Check, or Credit Card.
Only available at MCASAC during center hours. See address at right.
OR at a Free Rabies Vaccination Clinic. For more information about clinics, click here.

By mail: Payment options: Check or Money Order
Call 240.773.5900, Option 7, to request a form be mailed to you
or print this application

Then mail to: 7315 Muncaster Mill Road
Derwood, MD 20850
Attn: Licensing

(Must include proof of vaccination)

Licensing Fees

  • Dog/cat under one year of age – FREE*
  • Altered dog/cat over one year of age – $12 1 yr. / $24 2yr. / $32 3yr.
  • Unaltered dog/cat over one year of age – $25 1 yr. / $50 2yr. / $75 3yr.**
  • Replacement license tag (not a duplicate tag) - 50 cents
*There is no fee for the pet license but you still must obtain a license for your pet. The rabies certificate must indicate the pet is under one year old.
**Unaltered Pets
  • If your unaltered pet received a 1-year rabies vaccination, you must purchase a 1-year pet license.
  • If your unaltered pet received a 3-year rabies vaccination, you must purchase a 3-year pet license. Sending in a 1-year license fee with a 3-year rabies vaccination will result in your application being returned for correct payment.
For assistance, please call 240.773.5660

Rockville and Gaithersburg Residents

Residents of the municipalities of Rockville and Gaithersburg must license their pets with their respective municipality.  For pet licensing information, Rockville City residents should call 240-314-8937 and Gaithersburg City residents should call 301-258-6343.




Contact Us: Montgomery County Animal Services and Adoption Center
Department of Police · Animal Services Division
7315 Muncaster Mill Road · Derwood, MD 20855 · Telephone: 240.773.5900 · Fax: 301.279.1063
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