OS/OW permits
1,614 facts from 3 places, each quoted from the agency that sets it.

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Open a question to read the facts on file that bear on it.
General
144 topics
Permit required to exceed dimension limits (Yes or no)
Whether a vehicle or load exceeding any legal dimension or weight limit must obtain an oversize/overweight permit to operate.
Permit validity period (In words)
The period for which an oversize/overweight permit is valid, such as annual, seasonal, a maximum number of days, or a specific date range.
Permit validity period (Measures)
Number of permissible hauling days for which a permit is valid.
Permit required for oversize and overweight (In words)
The type of permit required when a load is both oversize and overweight.
Maximum width (Measures)
Maximum overall width of the vehicle or combination, including load and equipment, permitted under the permit class.
Online permit management system name (In words)
Name of the online system the region provides for applying for and managing special hauling permits.
Permit route restriction (In words)
Description of the roads or areas on which the permit authorizes operation, such as selected state highways, designated highways, or a minimum pavement width.
Maximum length (Measures)
Maximum overall length of the vehicle or combination, including load and equipment, permitted under the permit class.
Load eligibility
4 topics Open Load eligibility
Non-divisible load definition (In words)
The criteria used to determine whether a load is non-divisible for permit eligibility.
- New York
A certification by the manufacturer or designer of the load and/or vehicle that the object or vehicle cannot feasibly be manufactured or broken down into smaller sections.
For Type 1S – Superload Trip Permit. 1 more case.
- Ontario
You are eligible to apply for a permit if your vehicle or load cannot be reduced because it: could not be used for its intended purpose or function; would require more than eight work hours to dismantle using appropriate resources and equipment
Not stated in Quebec.
Overweight load of multiple items ineligible (Yes or no)
Whether a permit is unavailable when the vehicle, load or combination would be overweight and the load is made up of more than one item.
Not stated in Quebec.
Maximum work hours to dismantle non-divisible load (Measures)
The maximum number of work hours, using appropriate resources and equipment, that it would take to dismantle the load; a load requiring more than this number of hours to dismantle is considered non-divisible for permit eligibility.
Not stated in Quebec.
Permitted dimensions
6 topics Open Permitted dimensions
Maximum rear overhang (m) (Measures)
The maximum distance by which the load or equipment may project rearward beyond the rear of the vehicle.
Maximum height (m) (Measures)
The maximum overall height, including load and equipment, allowed under the permit.
Maximum width (m) (Measures)
The maximum overall width, including load and equipment, allowed under the permit.
Permitted weights and axle configuration
Maximum gross weight (kg) (Measures)
The maximum total mass of the vehicle or combination of vehicles, including load and equipment.
Maximum axle weight (kg) (Measures)
The maximum mass permitted on a single axle or group of axles, including load and equipment.
- New York5,897 to 27,216 kg (13,000 lb to 60,000 lb)
General rule 10,161 kg (22,400 lb), with 27 other cases.
- Quebec9,000 to 30,000 kg (19,842 lb to 66,139 lb)
Across 4 cases, each with its own conditions.
Not stated in Ontario.
Maximum wheel load (kg) (Measures)
The maximum mass permitted on a single wheel.
- New York4,536 to 5,080 kg (10,000 lb to 11,200 lb)
General rule 5,080 kg (11,200 lb), with 1 other case.
Not stated in Ontario and Quebec.
Validity and trip coverage
12 topics Open Validity and trip coverage
Maximum permit validity (days) (Measures)
The maximum period, in days, for which a permit of this category or class is valid.
Return trip included in permit validity (Yes or no)
Whether the permit authorizes a return trip on the same route as part of the same permit, without requiring a separate permit.
Permit validity extension allowed (Yes or no)
Whether the permit validity period can be extended after issuance.
Not stated in Quebec.
Applications and amendments
9 topics Open Applications and amendments
Permit application requires signature (Yes or no)
Whether the permit application must be signed and dated by an authorized representative of the company.
Application processing maximum business days (Measures)
The maximum number of business days within which the government commits to process a permit application requiring in-depth analysis, provided the file is complete, accurate, and compliant.
Not stated in New York.
Amendment allowed (Yes or no)
Whether an active permit can be amended after issuance.
Not stated in Quebec.
Permit travel conditions
15 topics Open Permit travel conditions
Escort vehicle required (Yes or no)
Whether one or more escort vehicles are required to accompany the oversize or overweight vehicle under specified conditions, as specified in the permit conditions.
Police escort required (Yes or no)
Whether the permit requires the vehicle to be escorted by a police-identified emergency vehicle, as specified in the permit conditions.
Minimum distance from other oversize vehicle (km) (Measures)
The minimum distance, in kilometres, that must be maintained from another oversize or overweight vehicle whose registration number is listed on the permit, as specified in the permit conditions.
Where the comparisons come from
- Information Concerning Special Hauling Permits (PERM 30)(opens in a new tab)
www.dot.ny.gov, PDF, 214 facts
- Subpart 154-1 — Nondivisible Load Permits; Table of Fees (Perm 43)(opens in a new tab)
www.dot.ny.gov, PDF, 186 facts
- Guide to oversize/overweight vehicles and loads(opens in a new tab)
www.ontario.ca, web page, 169 facts
- Information Concerning Special Hauling Permits, PERM 30(opens in a new tab)
www.dot.ny.gov, PDF, 166 facts
- Information Concerning Special Hauling Permits, PERM 30(opens in a new tab)
www.dot.ny.gov, PDF, 149 facts
- C-24.2, r. 35 – Règlement sur le permis spécial de circulation(opens in a new tab)
www.legisquebec.gouv.qc.ca, web page, 103 facts
- Guide to the Regulation Respecting Special Permits(opens in a new tab)
www.transports.gouv.qc.ca, PDF, 86 facts
- Information Concerning Special Hauling Permits (PERM 30)(opens in a new tab)
www.dot.ny.gov, PDF, 84 facts
- Guide du Règlement sur le permis spécial de circulation(opens in a new tab)
www.transports.gouv.qc.ca, PDF, 75 facts
- Get an oversize/overweight permit(opens in a new tab)
www.ontario.ca, web page, 74 facts
- Vehicle & Traffic Law § 385 — Dimensions and weights of vehicles(opens in a new tab)
www.nysenate.gov, web page, 47 facts
- C-24.2, r. 35 — Règlement sur le permis spécial de circulation(opens in a new tab)
legisquebec.gouv.qc.ca, web page, 35 facts
- C-24.2, r. 35 — Règlement sur le permis spécial de circulation(opens in a new tab)
legisquebec.gouv.qc.ca, web page, 31 facts
- Permis spéciaux pour excès de charges et dimensions – Classes 1 à 7(opens in a new tab)
www.transports.gouv.qc.ca, web page, 27 facts
- Règlement sur le permis spécial de circulation (C-24.2, r. 35)(opens in a new tab)
www.legisquebec.gouv.qc.ca, web page, 25 facts
- Guide sur les véhicules et charges de dimensions/poids exceptionnels(opens in a new tab)
www.ontario.ca, web page, 23 facts
- C-24.2, r. 35 – Règlement sur le permis spécial de circulation(opens in a new tab)
www.legisquebec.gouv.qc.ca, web page, 22 facts
- Demander et gérer un permis spécial(opens in a new tab)
www.transports.gouv.qc.ca, web page, 22 facts
- Guide abrégé du Règlement sur le permis spécial de circulation(opens in a new tab)
www.transports.gouv.qc.ca, PDF, 20 facts
- Guide to oversize/overweight vehicles and loads(opens in a new tab)
www.ontario.ca, web page, 14 facts
- Vehicle and Traffic Law, Title 3, Article 10, §385 — Dimensions and weights of vehicles(opens in a new tab)
www.dot.ny.gov, web page, 13 facts
- Special Hauling Permit Fees(opens in a new tab)
www.dot.ny.gov, web page, 10 facts
- NYPermits(opens in a new tab)
www.dot.ny.gov, web page, 5 facts
- Certification to Increase Registered Weight for Overweight Permit(s) (PERM 65)(opens in a new tab)
www.dot.ny.gov, PDF, 3 facts
- Divisible Load Overweight Permits - nysdot - NY.gov(opens in a new tab)
www.dot.ny.gov, web page, 3 facts
- Permits for Over Dimensional Vehicles — New York City DOT(opens in a new tab)
www.nyc.gov, web page, 3 facts
- New York State Certified Escort Manual 2025(opens in a new tab)
www.dot.ny.gov, PDF, 1 fact
- Overweight and Oversized Vehicles — New York DMV(opens in a new tab)
dmv.ny.gov, web page, 1 fact
- Size and Weight Restrictions — NYC DOT(opens in a new tab)
www.nyc.gov, web page, 1 fact
- Superloads – Direct Ordering Procedures(opens in a new tab)
www.dot.ny.gov, PDF, 1 fact
- Superloads — New York State Department of Transportation(opens in a new tab)
www.dot.ny.gov, web page, 1 fact