Overview
Ontario oversize and overweight permits are issued by the Ontario Ministry of Transportation, Compliance Branch. Single-trip permits are valid for three to five travel days.
Permit approval depends on the proposed route, dimensions, axle spacings, weights and tire sizes.
Permit Office
| Office | Ontario Ministry of Transportation, Compliance Branch |
| Address | Main Floor East Building, 301 St. Paul, 3rd Floor, St. Catharines, Ontario, Canada L2R 7R4 |
| Contact | (416) 246-7166 |
| Hours | 8:00 A.M. – 4:30 P.M. (ET) |
Permit Basics
| Permit validity | Single-trip permits are valid for three (3) to five (5) travel days. |
| Operating time | 8:00 A.M. – 4:30 P.M. (ET) |
Dimensions & Weights
Routine permit limits
| Length | 149′ (over requires special approval) |
| Width | 16′4″ |
| Height | 14′ (over requires special clearance checks for routes traveled) |
| Weight | Axle and gross weights depend on axle spacings, weight and tire size |
| Axle / group | Spacing | Weight |
|---|---|---|
| Single, Tandem, Tridum & Quad | — | See permit conditions |
Escort Requirements
| Based on | Escorts required |
|---|---|
| Width | On 2-lane highways — width 13′1″ and over: 1 front |
| Width | On multi-lane highways — width 13′1″ and over: 1 rear |
| Length | On 2-lane highways — length 120′7″ and over: 1 |
| Length | On multi-lane highways — length 120′7″ and over: 1 |
- Private escorts are allowed for loads up to 16′4″ wide; official escorts are required thereafter
- Escort requirements for length, height and weight will be indicated on individual permits