How is a COI different from a roadworthy safety certificate?

A roadworthy safety certificate is generally for light vehicles and specific transaction events like sale or transfer. A COI is for eligible heavy/commercial vehicles under a different compliance pathway in Queensland. If you searched for a roadworthy certificate but operate a vehicle in the COI scheme, you may need a COI instead. We can quickly point you to the correct inspection type so you avoid delays.

Which vehicles need a COI in Queensland?

COI requirements can apply to eligible heavy trucks, heavy trailers, motorhomes, and certain commercial/public passenger classes depending on registration class and usage. If your vehicle is interstate, unregistered, or recently lapsed, the process can differ. We'll confirm whether COI, HVRAS, or another inspection is needed before your booking.

What happens if my vehicle fails the COI inspection?

If your vehicle does not pass, you'll be given a defect report outlining what must be rectified. In most cases, repairs are completed and the vehicle is presented for re-inspection. Acting quickly is important because compliance timeframes apply. We'll explain exactly what needs to be fixed and the next steps to get your COI finalised.

Do I also need an HVRAS inspection?

Sometimes, yes. Depending on vehicle history, registration status, and class, you may need HVRAS in addition to a COI. This is common for certain unregistered or interstate vehicles. We assess your scenario first so you book the correct inspection path in one go.

Can you do a mobile COI inspection at my depot or worksite?

Yes. Our mobile COI service comes to your depot, yard, or worksite so your vehicle spends less time off the road. We cover Gold Coast, Brisbane, Ipswich, Sunshine Coast and surrounding areas, with urgent bookings available based on location and schedule.

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Certificate of Inspection

Mobile COI Certificates Across Queensland

Keep your heavy vehicle registered and compliant without the hassle of visiting a Transport and Main Roads office. Our approved examiners come to your site for fast, professional Certificate of Inspection services.

A Certificate of Inspection (COI) is a mandatory safety inspection required by Queensland's Department of Transport and Main Roads (TMR) for heavy vehicles, commercial transport vehicles and certain specialist vehicle types. It verifies your vehicle meets the minimum safety standards required to operate on Queensland roads.

Unlike a Roadworthy/Safety Certificate, which is a one-off requirement when selling or transferring a light vehicle: a COI must be renewed on a regular schedule (typically every 12 months) to keep your vehicle's registration active. Without a current COI, you cannot renew your vehicle's registration. This means your vehicle legally cannot operate on the road, which for many business owners translates directly to lost revenue and costly downtime.

What Is a Certificate of Inspection (COI)?

When You Should Book for Mobile COI

COI Timing and Renewal Rules

Timing matters with COI renewals. Here's how it works under QLD rules.Pro tip: The best time to book is within the month before your current COI expires. This gives you maximum coverage with no gap in compliance. You can check your COI expiry date using the QLD Rego Check tool or the QLD Rego Check app.

Up to 1 month before expiry

The new COI takes effect when your current certificate expires and no time is lost.

More than 1 month before expiry

The new COI takes effect from the date of inspection, meaning you may lose some validity time.

Up to 2 months after expiry

The new certificate takes effect the day after the previous COI expired.

More than 2 months after expiry

The new COI takes effect from the date of inspection.

What You Will Receive After Inspection

Certificate of Inspection (COI)

COI certificate issued on the spot
Lodged directly with TMR electronically
Digital copy sent to your email
Detailed defect report if anything fails
14 days to repair and re-inspect

This Is What You'll
Receive After Inspection

COI certificate issued on the spot
Lodged directly with TMR electronically
Digital copy sent to your email
Detailed defect report if anything fails
14 days to repair and re-inspect

How It Works

How To Get a Mobile COI

We've made the process as straightforward as possible. No driving your heavy vehicle across town, no waiting rooms, no wasted time.

Book or Call Us

Choose a date and time that works for you. We're available 7 days a week. Book through our online system in under 60 seconds, or call us directly.

We Come To You

Our ARCTick certified examiner arrives at your location. You'll receive a text notification 30 minutes before arrival so you know exactly when to expect us.

On-Site Inspection

The examiner conducts a comprehensive inspection in accordance with the National Heavy Vehicle Inspection Manual. Most inspections are completed within 30-60 minutes, depending on the vehicle type and condition.

Certificate Issued

If your vehicle passes, the COI is issued electronically and lodged directly with TMR through the Inspection Certificates Online (ICO) system. You'll receive your digital certificate immediately and won't need to visit a transport service centre.

Book or Call Us

Choose a date and time that works for you. We're available 7 days a week. Book through our online system in under 60 seconds, or call us directly.

We Come To You

Our ARCTick certified examiner arrives at your location. You'll receive a text notification 30 minutes before arrival so you know exactly when to expect us.

On-Site Inspection

Certificate Issued

Our Service Areas

1-Hour Dispatch Across Southeast QLD

From Gold Coast to Sunshine Coast, we bring QLD Government-approved inspections directly to your location.

Same-day service available across Brisbane, Ipswich, and surrounding areas with no workshop wait times.

Our Coverage Areas

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Trusted by QLD Caravan Owners

What Drivers Say About Their COI Gas Inspection

Sorted in 2 Hours Before Our Trip

We were leaving for a 3-month lap of Australia in two days and realised our gas certificate had expired. Called ASAP, they had a fitter at our storage yard in Arundel within hours. Certificate emailed before we even got home. Absolute lifesavers.

David R., Gold Coast

2019 Jayco Silverline Caravan

Came Straight to Our Storage Facility

I was worried they wouldn't service our storage complex but they came right out to Acacia Ridge, no issues. Inspector was thorough, explained everything he was checking, and the whole inspection took under an hour. Certificate arrived by email the same afternoon.

Lynette M., Brisbane Southside

2017 Coromal Lifestyle Caravan

Failed First Time — But They Were Honest About Why

My motorhome failed on a faulty regulator and one hose fitting. The inspector showed me exactly what needed fixing, gave me a written list, and didn't try to upsell repairs. Got it fixed locally, booked the re-inspection, passed the second time. Refreshingly straightforward.

Greg T., Sunshine Coast

2015 Winnebago Motorhome

Worth Every Cent for the Peace of Mind

We travel with our grandkids in the van so gas safety isn't something we take lightly. Inspector was thorough and professional, checked things we didn't even know needed checking. Knowing our LPG system is certified before a big trip is priceless.

Sandra & Kevin W., Ipswich

2020 Avida Esperance Motorhome

Had My Certificate Before the Weekend Market

I needed a gas compliance certificate for a council permit by Friday. Booked Wednesday, they came to my commissary kitchen Thursday morning, passed on the spot. Certificate in my inbox by lunch. My market booking was saved. Will use these guys every time.

Marco B., Brisbane North

Commercial Food Truck

Buyer Was Coming Saturday — Sorted It Friday

Found out the buyer needed a current gas certificate to arrange finance on my caravan. Booked ASAP on Thursday evening, fitter came to my driveway Friday morning. Passed, certificate issued, buyer got his finance approved. Couldn't have asked for a faster service.

Phil A., Tweed Heads

2016 New Age Manta Ray Caravan

Frequently Asked Questions

Got Questions? Answered ASAP.

A COI (Certificate of Inspection) is a Queensland compliance inspection for eligible heavy and commercial vehicles. It confirms the vehicle meets required safety standards to stay registered and legally operate.

You typically need a COI for renewal, transfer, re-registration, or when moving certain vehicles into Queensland registration. If you're unsure whether your vehicle needs a COI, we can confirm it before booking.

Mobile COI InspectionWhen YouCan't Afford Downtime

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Mobile COI Certificates Across Queensland

What Is a Certificate of Inspection (COI)?