 State Route 88 from Volney to Tazewell was renumbered as part of State Route 16, and State Route 88 was used as a renumbering of the portion of State Route 32 from Branchville to Purdy.State Route 89, which had not existed immediately prior to 1940, was assigned as a renumbering of State Route 96 to match North Carolina Highway 89.State Route 91 was renumbered as State Route 81, and State Route 91 was used on former State Route 81 from Frog Level to Lodi, former U.S. Route 58 from Lodi to Damascus and former State Route 78 from Damascus to Tennessee to match Tennessee State Route 91.