Gas ACS CCN1 (Core Re-Assessment) – C0378

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Course Overview

Gas service engineers must renew their CCN1 assessment every five years to enable them to continue conforming to their gas safe registration requirements. This assessment is for gas safe registered installers who hold a current or expired (within 12 months of expiry date) CCN1 certificate and wish to renew their registration.

This is a full cost course. There is no fee remission available and you cannot apply for an advanced learner loan to pay for your fees.

What You'll Learn

Year 1

The course will cover gas legislation; tightness testing and purging; combustion; pressure and gas rates; ventilation; pipe work; controls; flues; analysers; and unsafe situations. The assessment is in two parts over two days. Theory consists of seven papers (six open book, one closed book). The practical element of the assessment is a realistic working environment in a bay overseen by a competent assessor.

Entry Requirements

You will need to be employed/self employed and demonstrate previous CCN1 certification and element certification which is either currently active or less than 12 months expired.

How you will be assessed

You will be assessed against national recognised standards in a controlled environment. You will be allocated your own assessment bay and all reading material required for your assessment. The reading material will predominantly be British Standards. These documents will support you in enabling you to reference them whilst your assessor oversees your core gas safety assessment.

Course Fees

Tuition fees

Total Fees: £350.00

Additional Costs

There may be an additional examination registration fee of approximately £40.00 if applicable.

If you are 24 or over and don’t already have a full level 3 qualification (2 A levels or equivalent) there will be no course fees for this course. Simply apply by clicking apply now at the top of the page

Material Fees



If the course is longer than one year the total fees are for the first year only and further fees may apply in future years. All fees are based on a ‘home’ learner status. Please contact us for information on overseas fees.

For more information, please see our course fee disclaimers page.

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Course and Career progression

Gas safe registration is the normal progression for learners completing their re-assessment programme. Other elements can also be undertaken to enable a wider range of work to be undertaken by operatives when completing these extra assessments. Liquid petroleum gas is a popular element as it neatly aligns with natural gas and increases the scope of work a engineer can offer.

What Happens Next

Apply online via the College website. You will be contacted to attend an interview if required, or you will be sent a conditional offer according to the entry requirements for the course. You will then be invited in to enrol for your chosen course of study.

For enrol and pay courses: Once you have decided to take the course, you need to fill in a short learner details form online and pay the course fee. Once you have done this, you will receive an electronic confirmation of enrolment and payment.

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