Va. Code § 46.2-872: Maximum speed limits for vehicles operating under special permits

The maximum speed limit shall be fifty-five miles per hour on any highway having a posted speed limit of fifty-five miles or more per hour if the vehicle or combination of vehicles is operating under a special permit issued by the Commissioner in accordance with § 46.2-1139 or § 46.2-1149.2. The Commissioner may, however, further reduce the speed limit on any permit issued in accordance with § 46.2-1139.Code 1950, § 46-212; 1950, p. 881; 1952, c. 666; 1954, c. 244; 1956, c. 364; 1958, c. 541, § 46.1-193; 1960, c. 153; 1962, c. 307; 1964, cc. 118, 408; 1966, c. 85; 1968, c. 641; 1972, cc. 89, 546, 553, 608; 1974, c. 528; 1977, c. 577; 1978, c. 605; 1980, c. 347; 1989, c. 727; 1995, c. 113; 1996, cc. 36, 87; 1998, c. 439.