D.C. Mun. Regs. tit. 19, § 1406
1406.1 The license for owning or operating a video arcade shall be posted conspicuously in the premises of the licensee; provided that the face of such sign shall be no less than two feet square.
SOURCE: D.C. Act 5-129, § 4 published at 31 DCR 2331, 2337 (May 18, 1984).