Superload permits in Ontario
45 facts, each with the passage it comes from, quoted from 3 official sources.
Where to apply
Where an application for Superload permits is submitted in Ontario.
Online · Ministry of Transportation
PRIO online permitting system
prio.mto.gov.on.ca (opens in a new tab)
Before you apply online for the first time, you must register to use the online services by completing a user account form and emailing it to the Ministry of Transportation’s Oversize/Overweight Permit Office at oo.permits@ontario.ca. Once your online services account has been set up, you can use it to apply for as many permits as you need.
Phone · Ministère des Transports
Bureau de délivrance de permis, par téléphone
Contact the permit issuing office during business hours if the route indicated on your permit needs to be changed.
Phone · Ministère des Transports
Bureau de délivrance de permis, par téléphone (sans frais)
Contact the permit issuing office during business hours if the route indicated on your permit needs to be changed.
Mail · Ministry of Transportation
Highway Operations Permits Office
Ministry of Transportation Highway Operations Permits Office 301 St. Paul Street, 2nd Floor St Catharines, Ontario L2R 7R4
Download and complete an application form. Include payment (Canadian funds only) by visa or Mastercard using an authorization form, cheque made out to the Ministry of Finance, bank draft, money order or certified cheque made out to the Ministry of Finance.
Mail · Ontario Ministry of Transportation (MTO) Permit Issuing Office
Permit Issuing Office, by mail
301 St. Paul Street, 3rd Floor, St Catharines, Ontario, L2R 7R4
Application forms must be completed in full. Incomplete applications will be returned.
In person · Ontario Ministry of Transportation (MTO) Permit Issuing Office
Permit Issuing Office
301 St. Paul Street, 3rd Floor, St Catharines, Ontario, L2R 7R4
Email · Ministry of Transportation
Oversize/Overweight Permit Office, by email
Use it when: For Permitting and Registration for International Registration Plan and Oversize/Overweight (PRIO) online permitting system account set up, tow truck certificate applications, special vehicle configuration permits or project permits
Fax · Ministry of Transportation
Highway Operations Permits Office, by fax
905-704-2545
Use it when: Until January 1, 2026
Download and complete an application form. Include payment (Canadian funds only) by visa or Mastercard using an authorization form, cheque made out to the Ministry of Finance, bank draft, money order or certified cheque made out to the Ministry of Finance.
Start with a question
Open a question to read the facts on file that bear on it.
General
12 topics
Oversize width threshold (Measures)
The overall width, including load and equipment, that triggers a superload oversize permit.
- 5 m16′ 5″Dimensions that are considered a Superload
- 5 m16′ 5″Exceeds; vehicle and/or load
Oversize length threshold (Measures)
The overall length, including load and equipment, that triggers a superload oversize permit.
- 45.8 m150′ 1″Dimensions that are considered a Superload
- 45.8 m150′ 1″Exceeds; vehicle and/or load
Overweight gross weight threshold (Measures)
The gross vehicle or combination weight that triggers a superload overweight permit.
- 120,000 kg264,554 lbExceeds; vehicle and/or load
- 120,000 kg264,554 lbIn excess of 120,000 kg, gross vehicle weight
Single trip permit fee (Fees)
The fee charged for a single trip special permit authorizing movement of a vehicle, load, object or structure in excess of weight or dimensional limits.
- For a single trip where the vehicle, load, object or structure is in excess of dimensional limits$66.25CAD
- For a single trip where the vehicle, load, object or structure is in excess of weight or weight and dimensional limits and the gross vehicle weight exceeds 120,000 kilograms$714CAD
- For a single trip where the vehicle, load, object or structure is in excess of weight or weight and dimensional limits, the gross vehicle weight does not exceed 120,000 kilograms; a distance of greater than 100 kilometres but less than or equal to 500 kilometres$204CAD
- For a single trip where the vehicle, load, object or structure is in excess of weight or weight and dimensional limits, the gross vehicle weight does not exceed 120,000 kilograms; a distance of greater than 500 kilometres$265.25CAD
Superload permit required (Yes or no)
Whether a superload permit is required when a load exceeds specified exceptional dimension or weight thresholds.
Yes
Loads that are in excess of 120,000 kg, gross vehicle weight, and/or 5 metres in width , and/or 45.75 metres in length
Superload gross weight threshold (Measures)
The gross vehicle weight above which a load is considered a superload and requires a superload permit.
120,000 kg264,554 lb
Superload width threshold (Measures)
The overall width at or above which a load is considered a superload and requires a superload permit.
5 m16′ 5″
Superload length threshold (Measures)
The overall length at or above which a load is considered a superload and requires a superload permit.
45.8 m150′ 1″
Applications and supporting documentation
Minimum application lead time for superload overweight permit (Measures)
The minimum number of days before the intended move that an application for a superload overweight permit must be submitted.
5 days
Superload application submission office (In words)
The office or authority to which all applications for the movement of superloads must be submitted.
Ontario Ministry of Transportation (MTO) Permit Issuing Office
Minimum application lead time for superload oversize permit (Measures)
The minimum number of days before the intended move that an application for a superload oversize permit must be submitted.
5 days
Route assessment and approvals
5 topics Open Route assessment and approvals
Special approval required for overweight travel during spring thaw (In words)
The special approval required for overweight travel during the spring thaw period.
Weight and Load Engineer approval for single trip movements on highways subject to reduced loading restrictions.
Single trip permits
Traffic management plan required (Yes or no)
Whether a traffic management plan must be submitted or developed for a superload move.
Yesin 2 cases
- Superload move
- Superload permits; current dated; with the required information; Contact the Oversize/Overweight Permit Office for the template to follow.
Bridge consultant engineer evaluation required (Yes or no)
Whether a designated consultant engineer must evaluate bridges on the route and submit the evaluation for approval when the gross vehicle weight exceeds the superload weight threshold.
Yesin 2 cases
- For gross vehicle weights in excess of 120,000 kg
- Gross vehicle weights exceeding 120,000 kg; report must be submitted to the Ministry of Transportation Oversize/Overweight Permit Issuing Office for approval
Where these facts come from
- Guide to oversize/overweight vehicles and loads(opens in a new tab)
www.ontario.ca, web page, 19 facts
- Get an oversize/overweight permit(opens in a new tab)
www.ontario.ca, web page, 17 facts
- O. Reg. 381/98: SPECIAL PERMITS(opens in a new tab)
www.ontario.ca, web page, 9 facts