Verify a Business License

Learn if an entity is properly licensed to conduct a particular business activity in the District.


In order to verify a BBL, you must provide such business information as name, address, tax number, activity and/or license number. With this information, a BBL can be verified online, via telephone, in-person and/or in-writing.

A BBL is verified to determine if a business is licensed and otherwise compliant with D.C. Code and Municipal Regulations to conduct a particular business activity in the District of Columbia.

In order to verify a BBL, the following information is required:

  • Business Name;
  • Tax Number (if available);
  • Business Address;
  • License Number; and/or
  • Business Activity

In most cases, license verification is immediate. Certification Requests are fulfilled within 72 hours.

A BBL can be verified:

  • Online via the Business License Verification system;
  • By telephone at (202) 442 4311(Maximum of 3 requests per call);
  • In Person, Business License Center, 1100 4th Street, SW, 2nd Floor, Washington, DC 20024; and
  • In Writing via certification Request.

Department of Consumer and Regulatory Affairs

1100 4th Street, SW, Washington, DC, 20024

Office Hours: Monday,Tuesday,Wednesday,Friday 8:30am to 4:30pm and Thursday 9:30am - 4:30pm

Phone: (202) 442-4400

This is map view of the location