A licensed dome light installation business sign, bearing the dome light installation business license number and meeting the specifications of the Commission, shall, at all times, be hung or mounted on the outside of the premises in such a manner that it is easily visible to the public from outside the building.
A dome light installation business owner shall not display a licensed dome light installation business sign if its dome light installation business license, or any other necessary license, is expired, suspended, or revoked.
The business location of each licensed dome light installation business shall have affixed to the inside of a front facing glass window, clearly legible from the outside, a printed sign bearing its business name, license number, and the Commission's complaint telephone number.
D.C. Mun. Regs. tit. 31, r. 31-1512