Tidewater Regional Transit was the operating name of the Tidewater Transportation District Commission, serving the Norfolk-Portsmouth, Virginia area, which was formed in January 1973. It acqured the Norfolk Division of the Virginia Transit Company at that time, followed subsequently by the Community Motor Bus of Portsmouth in May 1975, and the operations of the Norfolk, Portsmouth and Elizabeth Tunnel in September 1977. The formation of the Tidewater Regional Transit (TRT) became complete in September 1977. In 1999, TRT merged with PENTRAN and became Hampton Roads Transit.