D.C. Mun. Regs. tit. 16, r. 16-603
Each motor vehicle and electronics equipment repair dealer shall be licensed as a supervisory inspector or shall be required to employ, under § 631, a supervisory inspector who shall be licensed pursuant to the requirements of this section.
The Department shall establish a program for competency testing and registration of motor vehicles and electronics equipment supervisory inspectors.
Any individual who has successfully passed the appropriate competency test and has otherwise complied with the licensing requirements for supervisory inspectors shall be designated by the Department as a "Registered Automotive Supervisory Inspector" or a "Registered Electronics Supervisory Inspector," as the case may be, in the appropriate repair industry category or in a designated repair specialty within that category.
Failure to obtain a license as required by this section and by § 602 may be raised as an affirmative defense to any suit brought by a consumer goods repair dealer or supervisory inspector seeking to collect payment for services performed by the dealer or inspector in that person's area of licensure.
Each applicant for a supervisory inspector license shall demonstrate to the Department, in a manner to be prescribed by the Department, the following:
An applicant shall be presumed to be of good moral character unless he or she has been convicted of a crime which the Department finds has a substantial relationship to the functions and responsibilities to be performed by a supervisory inspector, and that the applicant has not demonstrated good moral character subsequent to the conviction.
D.C. Mun. Regs. tit. 16, r. 16-603