CCN1 Natural Gas Safety (Reassessment)
Demonstrate Your Competence in Core Domestic Gas Safety Standards
The CCN1 Reassessment is a mandatory requirement for qualified gas engineers looking to renew their ACS certification and maintain Gas Safe registration. Valid every five years, the CCN1 reassessment confirms your ongoing competence in core domestic gas safety, including installation, maintenance, tightness testing, ventilation, and fault finding, in line with current industry regulations.
Designed for experienced tradespeople already working in gas, the CCN1 Reassessment is shorter and more streamlined than the initial assessment, focusing on up-to-date knowledge and practical skills. Assessments are carried out by industry-qualified assessors in realistic working environments, ensuring you remain compliant and confident on the job.
Completing your CCN1 ACS reassessment on time means not only can you carry on working but also that you do not have to repeat the lengthy CCN1 Initial Assessment gain (which you would have to do if your CCN1 Assessment lapses).
Next course dates
| Start date | Location | Duration / Fees | |
|---|---|---|---|
|
Anytime
|
Bispham Campus
|
2 Days
/
£310
|
|
|
Anytime
|
Bispham Campus
|
2 Days
/
£310
|
Protect Your Eligibility for Essential Domestic Gas Work
Career Progression & Prospects
Certification Membership of the Gas Safe Register is a legal requirement for any installer wishing to carry out gas work in the United Kingdom, Isle of Man and Guernsey.
To remain registered as a domestic gas installer, you must be reassessed for your Natural Gas Safety (CCN1) qualification as well as your certification for the appliances you intend to work on.
Next steps at B&FC
Remember to get reassessed for any appliance certification such as CENWAT, HTR or CKR which may also lapse at a similar time to your CCN1. You can find these Reassessments by navigating back to our gas industry training page here.
Key Course Information
Entry Requirements
You must hold or have held a CCN1 certification to qualify for reassessment. If your certification lapsed more than 12 months ago you will need to undertake the Initial Assessment again rather than the Reassessment.
Your previous certificates must be produced at the time of reassessment as evidence that you hold the original certification.
Qualification obtained
CCN1 Natural Gas Safety (Reassessment)Fees and funding
This is a commercial course, the fees for which are displayed above and must be paid at the time of booking.
Extra costs and equipment
All equipment required for the successful completion of this programme is supplied by B&FC.
Terms and conditions
Read our full terms and conditions for more information.
What You’ll Learn
The reassessment involves:
- Written or computer-based exams covering gas safety regulations, unsafe situations, tightness testing, purging, ventilation, combustion, and emergency procedures
- Practical assessments demonstrating safe installation, servicing, and fault finding on domestic gas systems
- Risk assessment and gas safety checks, including identifying and classifying unsafe situations (At Risk, Immediately Dangerous)
- Knowledge of current standards, such as BS 6891 and relevant updates to gas legislation
How You’ll Learn
The CCN1 Ressessment is an assessment rather than a training course which takes place over two days at our dedicated gas training centre. You will have time to familiarise yourself with the equipment and tools at the centre prior to each practical assessment where you will be observed completing specified tasks by the assessor. The theory test(s) will be conducted in a classroom environment.
Expert tutors
All tutors involved in the delivery of courses and/or assessments within the College are approved to teach and/or assess the subjects and modules they deliver.
The approval process ensures that staff delivering and/or assessing a given programme are appropriately qualified, with relevant technical and industrial experience and professional practice.
How You’ll Be Assessed
The CCN1 Raassessment is split into two parts:
Theory: Multiple-choice and written questions covering gas safety legislation, combustion, ventilation, installation standards, emergency procedures, and more. The theory test is what is called an open book test, which means you can refer to British Standards and technical bulletins.
Practical: Hands-on tasks in a controlled environment, including tightness testing, gas rating, appliance installation checks, flue flow and spillage testing, and the use of gas analysers. Candidates must demonstrate competence in real-life scenarios.