An applicant for registration by endorsement may qualify for registration by endorsement if the applicant is licensed, registered, certified, or accredited by an accrediting association or a state board and recognized by the Board as a qualified professional according to standards that were the substantial equivalent of the requirements of § 10202, at the time of the licensing, registration, certification, or accreditation.
D.C. Mun. Regs. tit. 17, r. 17-10204