Md. Code, Tax - General § 11–707

(a) The Comptroller may issue a special license to an applicant who:

(1) is not required to be licensed as an out–of–state vendor or a retail vendor;

(2) operates out of the State and sells tangible personal property, a digital code, a digital product, or a taxable service for use in the State; and

(3) submits to the Comptroller an application on the form that the Comptroller requires.

(b) While it is effective, a special license authorizes the licensee to collect the sales and use tax.