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The Queensland Government is now in caretaker mode until after the state election. Minimal updates will be made to this site until after the election results are declared.

About certificates of inspection

About certificates of inspection

Certificate of Inspection (COI) vehicles (such as heavy vehicles, buses, taxis and booked hire vehicles)  registered in Queensland may need to have a periodic or programmed inspection to check minimum vehicle safety standards. A COI is issued when the vehicle passes the inspection.

Owners of registered COI vehicles must have a current COI at all times, unless exempt.

COI vehicles

Depending on your vehicle type, a certificate of inspection can be obtained from either a Transport and Main Roads inspection centre or an approved inspection station accredited by Transport and Main Roads.   

Find out about the different COI vehicle types and requirements.

Find out where to book a vehicle inspection.

Unregistered vehicles can get an inspection certificate from an approved inspection station.


Generally, you will receive a reminder notice around 10 weeks before your COI expires—but it’s your responsibility to ensure your COI vehicle has a current COI.

You can check registration status online or using the QLD Rego Check app to see when your COI expires.

If a COI vehicle is inspected:

  • up to 1 month before the current certificate expires, the new certificate will not begin until the current certificate expires
  • more than 1 month before the current certificate expires, the new certificate will commence from the date the vehicle was inspected
  • after its previous certificate expires, the expiry date of the new certificate will be calculated from the expiry of the previous certificate (e.g. if your COI is normally due on 1 July but you have it inspected on 1 August, your new COI will commence on 1 July.

Expired COIs

It is an offence to drive a vehicle with an expired COI unless you have a COI exemption or an extension of time to comply.

Generally an extension of time is only available if the vehicle needs an inspection at a Department of Transport and Main Roads inspection centre and there are no available booking slots. Contact the Department of Transport and Main Roads on 13 23 90 to enquire about extensions of time.

Inspection fees

Last updated 1 September 2017.

Vehicle category Inspection Fee TMR Booking fee

Light motor vehicles other than bus, at a TMR inspection centre



Light motor vehicle, other than bus, at an AIS



School bus or a bus with a gross vehicle mass not more than 4t



Any other bus with a gross vehicle mass more than 4t



Another motor vehicle with a gross vehicle mass more than 4.5t but not more than 16t



Another motor vehicle with a gross vehicle mass more than 16t



Trailer with an aggregate trailer mass more than 3.5t



After the inspection

After your vehicle’s inspection, if your COI was:

Alternatively, you can post a copy of your certificate to:

Customer Service Support
Department of Transport and Main Roads
GPO Box 1412

Note: if you email, fax or post a copy, you also need to include a signed cover note requesting your certificate of inspection (COI) details be recorded against your vehicle’s registration number/record.

* An unassigned certificate is issued when your vehicle's details are not recorded in our system (for example, interstate registered vehicles) or do not match what is already recorded in our system.

If the COI is not issued because the vehicle failed the inspection, you will need to get the defects fixed before getting a re-inspection.


Contact a transport inspector on 13 23 80 for more information on certificates of inspection.

Need to find an approved inspection station?

Approved inspection stations are now easier to find and listed online.

Safety certificates

Safety certificates are needed when you sell a light vehicle (such as a car or motorcycle) in Queensland.

Get your reminder notice by email

Get reminded by email when your certificate of inspection is about to expire.

Log into your Transport and Main Roads account and sign up.

Last updated
10 November 2017
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