Trailer IVA changes in 2026 and GB type approval for trailers from 2027

What trailer IVA is and who it affects

Individual Vehicle Approval (IVA) is the route for getting a vehicle or trailer approved one at a time when it does not hold type approval. DVSA carries out the inspections. For trailers it covers four categories:

You are most likely to meet trailer IVA when you commission a bespoke or low-volume build, import a trailer, or buy from a small manufacturer that does not hold type approval for that design. At the inspection the applicant must prove compliance with evidence such as manufacturer markings, certificates and test reports. A trailer that fails IVA cannot go into service, and a delay at approval holds up the contract it was bought for.

Trailer IVA manual Version 13: what changed

DVSA's O1–O4 IVA Inspection Manual moved to Version 13, effective for inspections from 11 May 2026. The PDF is dated 11 May 2026; some trade press reported it as dated 5 May. The manual's amendment record lists these changes:

What these changes mean in practice

• EMC. Trailers with electronic braking (ABS or EBS), electronic steering or other electronics need clear evidence that those systems meet EMC requirements. Ask the manufacturer for the approval marks or test reports before you book.
• Lighting and reflectors. Examiners now have clearer guidance on lamp positions, grouped lamps and additional reflectors. Bespoke bodies with extra marker lamps or non-standard lamp clusters are where this bites.
• Lateral protection. If you are relying on an exemption from sideguards, the manual now spells out what the examiner will expect for an exempted vehicle. Have the reason for the exemption documented.
• Tyres. For O3 and O4 trailers, the speed and load variation table now applies. Check the tyre load index and speed category against the trailer's design mass and intended use.
• Couplings. Where a secondary coupling (such as a breakaway cable or safety chain) is used, make sure it matches what the manual now describes.

The N2/N3 lorry manual: Version 14.1

On the same date, Version 14.1 of the IVA Inspection Manual for N2 and N3 lorries came into effect. It is a minor revision. Emissions Note 1 now allows alternative ways to show compliance. The lighting figures were revised, along with the sections on reversing lamps, rear fog lamps and end-outline marker lamps. Headlamp height guidance for N3G off-road vehicles changed, and the tyre table rows for 90–100 km/h were revised. If you are having a rigid body built on a chassis that needs IVA, ask the bodybuilder to check its evidence pack against Version 14.1.

GB type approval for trailers from 1 February 2027

This is the bigger change. The Vehicle Certification Agency (VCA) announced on 28 September 2026 that:

"From 1 February 2027, O-category vehicles which are not approved via IVA must hold a full GB or UK(NI) type approval (g11 or n11) before they can be manufactured for sale in Great Britain."

It follows the same step for cars, vans, buses and lorries. Since 1 February 2026, all M and N category vehicle types manufactured for sale in Great Britain have needed full GB or UK(NI) type approval, which ended the provisional, EU-based route.

What it means for manufacturers

• Trailer manufacturers that rely on EU approvals or provisional GB approvals need full GB type approval for each design they want to keep selling in Great Britain, or must use IVA.
• GB type approval needs GB conformity of production (CoP) clearance.
• VCA says applications take up to six weeks to process. VCA can accept test reports for O-category vehicles from EU-designated technical services where those reports are dated on or before 31 December 2027.
• VCA is running free webinars for manufacturers on 21 October, 11 November and 10 December 2026, and 12 January 2027.

What it means for operators

• The requirement applies to trailers manufactured for sale. It does not reach back to trailers already in service on your fleet.
• If you are ordering trailers for delivery in 2027, ask the manufacturer now whether the design will hold full GB or UK(NI) type approval by 1 February 2027. If not, find out whether it will go through IVA and who pays for and arranges it.
• Expect some smaller and specialist builders to need extra time. Build that into delivery dates for contracts that start early in 2027.
• Keep the approval evidence (type approval number or IVA certificate) with the trailer's records. You will want it when you sell the trailer and if anyone questions its approval.

Before your next trailer approval

1. Confirm the route. Type approved, or IVA? From 1 February 2027 there is no provisional option for new trailers.
2. Check the manual version. Inspections from 11 May 2026 use Version 13 for trailers and Version 14.1 for N2/N3 lorries.
3. Gather evidence early. EMC evidence for electronic systems, lighting and reflector approvals, tyre specifications and coupling details are the common gaps.
4. Get the builder to sign up to the evidence. Make it a condition of the order that the trailer is supplied with what IVA or type approval needs.
5. Plan the trailer into your maintenance system from day one. Approval is the start of compliance, not the end of it.

Once the trailer is in service

A trailer used under an operator licence must go into your preventive maintenance system like any vehicle. The DVSA Guide to Maintaining Roadworthiness sets safety inspection intervals, typically every 4 to 13 weeks depending on use. Since April 2025, every safety inspection should include a laden brake performance assessment, and for trailers an electronic braking performance monitoring system (EBPMS) report is one of the accepted methods. Keep inspection records for at least 15 months.

Roadworthy, our fleet compliance software, includes an inspection and maintenance calendar and defect tracking, which helps keep trailers on schedule alongside the rest of the fleet. See Roadworthy.

How J&JL can help

We help operators set up maintenance and inspection systems that stand up to DVSA scrutiny, including trailers, brake testing and defect control. If you are expanding your fleet or starting out, our fleet set-up service covers operator licensing, maintenance planning and vehicle approval questions. Keep an eye on our legislation updates for further changes.