How to read a Connecticut oversize permit
CTDOT's OS/OW Permit Office issues permits through the CVO WebPortal, and CTDOT says its permits 'limit the routes, times of operations, maximum rate of speed' and other conditions. In CTDOT's single-trip guide, the route is entered as a list of roads separated by dashes, and single-trip moves run in daylight only.
Issued by the Connecticut Department of Transportation, Bureau of Highway Operations, Oversize/Overweight (OS/OW) Permit Office through Connecticut Commercial Vehicle Operations (CVO) WebPortal (run by CT DMV). Written from CTDOT's published rules; we haven't read a real Connecticut permit yet.
How to read the route
No sample of an issued Connecticut permit is published. In CTDOT's single-trip quick start guide, the applicant enters the trip origin, then the 'routes for the trip, separated by dashes,' then the destination. So expect the route as a dash-separated list of roads in driving order, from origin to destination. CTDOT says it may add escorts once a route is identified. That guide is from the older CT-ePASS system, and the current CVO WebPortal may look different.
Road names on Connecticut permits
| On the permit | Means |
|---|---|
| Route 15 | State Route 15, which is the Merritt Parkway and the Wilbur Cross Parkway. Trucks and oversize loads are not allowed on them. |
| SR 796 | State Road 796, the Milford Parkway |
| U.S. Route 1 | U.S. Route 1 (Boston Post Road) |
| I-91 | Interstate 91 |
Where the route starts and ends
CTDOT's quick start guide has separate entries for the trip origin and the trip destination, with the routes in between. How the current CVO WebPortal prints them on the permit is not published.
Conditions to watch for
Daylight only
Move only from half an hour after sunrise to half an hour before sunset, unless CTDOT gives special permission ahead of time. This window is shorter than daylight in many states. Source
“except during daylight hours (one-half hour after sunrise to one-half hour before sunset)”
Weekends
Single-trip permits normally don't cover Saturdays or Sundays. On request, CTDOT issues weekend permits for daylight to noon on Saturday and Sunday, for loads up to 12 feet wide, 13'6" high, 80 feet long and 160,000 pounds. Source
“Weekend travel permits (Saturday and Sunday only between daylight and noon) are available upon request”
Holidays
CTDOT publishes holiday blackout periods each year. For 2026: New Year's Day (Jan 1); Good Friday (Apr 3) until daylight Monday, Apr 6; Memorial Day (noon Fri, May 22 until daylight Tue, May 26); Independence Day (Sat, Jul 4); Labor Day (noon Fri, Sep 4 until daylight Tue, Sep 8); Thanksgiving (noon Wed, Nov 25 until daylight Mon, Nov 30); Christmas (noon Thu, Dec 24 until daylight Sat, Dec 26). Source
“Begin Wednesday, November 25 at 12:00 NOON until daylight, Monday, November 30”
Escorts
Escort needs depend on width, height and length, and on whether the highway is divided. CTDOT's table lists civilian and State Police escorts. A front pole car is required for loads 14'6" high or more, and CTDOT can add escorts for construction, tight spots or time of day. Source
“The Department reserves the right to require additional escort services (civilian and/or Connecticut State Police) once a route is identified”
Escort car signs and lights
Escort cars need a top-mounted flashing or rotating amber light that runs at all times and two-way radio with the load. They also need an 'OVERSIZE LOAD' sign at least 5 feet long and 12 inches high, black on yellow, with the bottom 48 inches above the road. Source
“The message shall read 'OVERSIZE LOAD'.”
Superloads at night
A load over 150 feet long, 16 feet wide, 16 feet high or 200,000 pounds is a Superload. It moves at night only, usually with State Police escorts, and needs a certified Connecticut route survey done within one week of the move. Source
“Superload moves are limited to nighttime only and typically require Connecticut State Police (CSP) Escorts.”
Easy to miss
- Route 15 (the Merritt and Wilbur Cross Parkways) and the Milford Parkway (SR 796) don't allow vehicles over 8 feet tall, 24 feet long or 7'6" wide, so a truck can't use them.
- CTDOT's daylight window starts half an hour after sunrise and ends half an hour before sunset, which is shorter than in most neighboring states.
- CTDOT's quick start guide lists an off-route fine of $2,250 and says issued permits can't be revised; a change means a new permit. The fine figure is from an older guide.
Questions
What are the oversize travel hours in Connecticut?
From half an hour after sunrise to half an hour before sunset, unless CTDOT gives special permission before the move. Superloads are the exception: they move at night only.
Can I move an oversize load on a weekend in Connecticut?
Only with a weekend travel permit, which CTDOT issues on request for Saturday and Sunday from daylight until noon. It covers loads up to 12 feet wide, 13'6" high, 80 feet long and 160,000 pounds.
When do I need a pole car in Connecticut?
CTDOT requires a front pole car for all loads 14'6" high or more. It can also count as a civilian escort if it meets the escort vehicle requirements.
Sources
Your permit is the legal document; follow everything it says. Rules change; check CTDOT's site before you move.Last checked October 2026.