CODE OF VIRGINIA RESTRICTION OF TITLES (§ 54.1-2955) It is unlawful for any person not holding a current and valid license from the Virginia Board of Medicine to practice as a respiratory therapist or to assume the title “Respiratory Therapist” or to use, in conjunction with his name, the letters “RT.” HISTORY: 1985, c. 347, § 54-281.11; 1988, c. 765; 1990, c. 920; 1998, c. 557; 2015, c. 302.