# I Already Have a Certificate of Authority to Operate a Business in the District of Columbia; Why Do I Need Another License?

> I already have a Certificate of Authority to operate a business in the District of Columbia; why do I need another license? If you have already register...

Source: https://dob.kustomer.help/en_us/i-already-have-a-certificate-of-authority-to-operate-a-business-in-the-district-of-columbia-why-do-i-need-another-license-HJ7ijqvli

Last updated: 2022-12-06T20:29:53.257Z

**I already have a _Certificate of Authority_ to operate a business in the District of Columbia; why do I need another license?**

If you have already registered your business, the District of Columbia Government acknowledges your organization's intent to operate in the District. In some cases, a [business activity](http://dcra.dc.gov/node/514522) requires additional regulation by another District of Columbia Government agency or another division within the Department of Buildings. To learn if your organization requires a Basic Business License, contact the Business Licensing Division, (202) 442-4311, 1100 4th Street, SW, 2nd Floor, Washington, DC 20024.