Tennessee oversize permit office
Tennessee Department of Transportation (TDOT) - Oversize & Overweight (OS/OW) Permit Office. Call (615) 741-3821, Monday - Friday 8:00 a.m. - 4:30 p.m. (lunch 12:00 p.m. to 1:00 p.m.) Central time.
From Tennessee's own pages, checked 2026-10-24. Fees and rules change: the state's page is the last word.
- How to get one
- Apply online in TNTRIPS, one application per vehicle; the office does not take orders by phone or email, so use a permit service if you cannot apply online.
- Single trip fee
- Excess width 8'6" up to 14' $20.00; 14'1" up to 16' $30.00; over 16' $30.00 plus $5 for each additional foot or fraction; excess length $20.00; excess height $20.00; excess weight $20.00 plus $.06 per ton-mileSource
- Legal without a permit
- Width 8'6" · Height 13'6" · Length 50 feet kingpin to rear of trailer (truck tractor and semi-trailer); 45 feet straight truck; 65 feet straight truck with trailer · Weight 80,000 pounds grossSource
- Superloads
- A load is a superload if it is over 165,000 pounds gross, over 16 feet wide, or over 15 feet 6 inches high.Source
- How fast
- Regular single trip and annual permits may take up to 3 days; superloads take 3 to 30 days depending on weight.Source
When you can move
- Daylight
- No general daylight-only rule: permits allow movement 24 hours a day, 7 days a week unless the permit says otherwise; loads over 16 ft wide, 15 ft 6 in high or 165,000 lbs may get set travel times.Source
- At night
- Night moves are allowed by default (24-hour continuous movement); at night, wide or long loads on a tractor-semitrailer need red side lamps, rear lamps and reflectors on the load.
- Weekends
- No general weekend ban; weekend days next to some holidays may also be restricted.
- Holidays
- Easter, Memorial Day, Independence Day, Labor Day, Thanksgiving Day, Christmas Day, New Year's Day. Easter: from 6 p.m. Thursday before Good Friday through Easter Sunday; Memorial Day and Labor Day: from noon the Friday before through the holiday; July 3-4 (plus nearby weekend days); Thanksgiving: noon Wednesday through Sunday; Christmas-New Year: Dec 24 through Jan 1 (plus nearby weekend days). Next datesSource
- Rush-hour curfews
- 1 in Tennessee, such as Interstates in counties over 250,000 people (loads over 12 ft 6 in wide, 15 ft high or 90 ft long): Mon-Fri 7-9 a.m. and 4-6 p.m. All of them