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Load eligibility in Ontario

Rules for determining whether a load and its registered vehicle qualify for an oversize or overweight permit.

4 facts, each with the passage it comes from, quoted from 2 official sources.

Where to apply

Where an application for Load eligibility 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

    416 246-7166

    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)

    1 800 387-7736

    Contact the permit issuing office during business hours if the route indicated on your permit needs to be changed.

  • Fax · Ministère des Transports de l'Ontario (MTO)

    Bureau de délivrance des permis du MTO, par télécopieur

    416 235-3924

  • Mail · Ministère des Transports

    Bureau de délivrance de permis, par la poste

    301, rue St. Paul, 3e Étage, St Catharines, (Ontario) L2R 7R4

  • 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 · Ministère des Transports de l'Ontario (MTO)

    Bureau de délivrance des permis du MTO, par courriel

    irp@ontario.ca

    Use it when: Only with a prepaid payment account with the Ministry

  • Email · Ministry of Transportation

    Oversize/Overweight Permit Office, by email

    oo.permits@ontario.ca

    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.

  • Must the vehicle's registered weight be at least its permitted weight?Nothing on file for Ontario answers this yet.

Facts

3 topics

Non-divisible load definition (In words)

The criteria used to determine whether a load is non-divisible for permit eligibility.

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

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.

Yes

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.

8 hours

In general

  • 8 hoursIn general

Where these facts come from