
Large Electric Vehicle: High Voltage Isolation, Reinstatement and Safety
Learn more about the standards and assessment process for the Inspection Technician licence.
Who can apply?
This irtec licence is intended for technicians involved in the isolation, reinstatement and safety associate with high voltage driveline systems fitted to a ‘Large Electric Vehicles’.
This licence expires after three years.
The term ‘Large Electric Vehicle’ relates to a hybrid or full electric vehicle, for example:
- A vehicle which exceeds 3,500kg as described in the DVSA HGV Inspection Manual
- Category M2 or M3 vehicle described in the DVSA PSV Inspection Manual
- Other types may be considered but might require authorisation by the IMI

What are the requirements?
Skills and knowledge requirements
Minimum candidate entry requirement is at least three years’ experience in vehicle maintenance and repair. This is to ensure they are familiar with the skills, knowledge, and techniques with high voltage driveline systems. Experience could count in another sub-sector such as LCV, LCOMV or B&C in:
- Current irtec Service Maintenance Technician
- Current irtec Advanced Technician
or
- Level 5 S/NVQ (or equivalent qualification) plus at least 1-year post qualification experience.
For Employers
The candidate must be a minimum age of 18, be in full time employment and must be able to work unsupervised.
Code of Conduct
Please click here to view the irtec Code of Conduct that all irtec licence holders should uphold.

The Assessment Process
Technicians must complete a theory test at an irtec-approved assessment centre, followed by a number of practical assessments to be completed over the course of 12 months. Practical assessments can be carried out at an irtec centre or the workplace (additional charges may be applicable) by an irtec-approved assessor.
The practical task is to demonstrate the correct and safe methods, use appropriate equipment and information to isolate and reinstate a large electric vehicle high voltage driveline system.
Who it benefits
The irtec Licence Scheme offers benefits for both the technicians who hold the licence, and their employers.
- Demonstrate proof of technical competence
- Recognition of your knowledge & expertise
- Prove commitment to Continuing Professional Development (CPD)
- Eligibility for a Halfords trade discount card
- Customers can be confident in vehicle safety
- An irtec-licenced workforce strengthens your business’s credibility
- Gain a competitive advantage in the industry
- Identify training needs for your staff

Ready to get accredited?
Choose your irtec licence and find your nearest assessment centre.
irtec Licence FAQs
Have questions about the irtec Licence Scheme?
- What is irtec?
irtec is an independent accreditation that validates the competence of technicians working in the commercial vehicle, trailer and passenger transport industries. It assesses both practical skills and technical knowledge. It is widely recognised across the industry as a benchmark of competence and professionalism.
- Who is irtec for?
irtec is designed for technicians working on HGVs, PSVs and trailers. It also benefits employers looking to demonstrate high maintenance standards and build trust with customers.
- What are the benefits of holding an irtec licence?
An irtec licence provides independent proof of your skills, recognises your expertise, supports your commitment to CPD, and can give you a competitive edge in the industry. irtec licence holders are eligible for a free Halfords Trade Card, giving access to discounts on a wide range of products and services.
- How does irtec benefit employers?
Employers benefit from increased credibility, improved vehicle safety assurance, and the ability to identify training needs. Having irtec licenced staff can also strengthen your position in contracts and public inquiries.
- How do I get irtec accredited?
To get accredited, find the licence that is relevant to you and apply through an approved assessment centre. You can use the directory on this page to find a centre near you.
- How long does an irtec licence last?
All irtec licences are typically valid for five years, except for Large Electric Vehicle licence, which expires after three. Upon expiry, you can apply to renew your licence and resit the exams.