D.C. Mun. Regs. tit. 18, § 4011
4011.1 No person shall drive a vehicle at a speed greater than fifteen miles per hour (15 mph) on the streets listed in this subsection.4011.2 No person shall drive a vehicle at a speed greater than thirty miles per hour (30 mph) on the streets listed in this subsection.(a) North Capitol Street, N.W., both directions between Michigan Avenue and Bryant Street.4011.3 No person shall drive a vehicle at a speed greater than thirty-five miles per hour (35 mph) on the streets listed in this subsection.4011.4 No person shall drive a vehicle at a speed greater than forty miles per hour (40 mph) on the streets listed in this subsection.4011.5 No person shall drive a vehicle at a speed greater than forty-five miles per hour (45 mph) on the streets listed in this subsection.4011.6 No person shall drive a vehicle at a speed greater than fifty miles per hour (50 mph) on the streets listed in this subsection.4011.7 No person shall drive a vehicle at a speed greater than fifty-five miles per hour (55 mph) on the streets listed in this subsection.4011.8 No person shall drive a vehicle at a speed greater than sixty miles per hour (60 mph) on the streets listed in this subsection.
SOURCE: 17 DCRR § 40.121, Special Edition (September 28, 1970); as amended by Final Rulemaking published at 47 DCR 315 (January 21, 2000); as amended by Final Rulemaking published at 48 DCR 9357 (October 12, 2001); as amended by Final Rulemaking published at 50 DCR 4263 (May 30, 2003); as amended by Final Rulemaking published at 57 DCR 1110 (January 29, 2010); as amended by Final Rulemakings published at 60 DCR 1183 and 60 DCR 1184 (February 1, 2013).