Course Information 



This qualification allows you to renew your ACS core domestic natural gas safety (CCN1) and is for candidates who wish to maintain their current membership with Gas Safe Registration.


The course is required to be renewed every 5 years and all candidates can take 6 months in advance to their current CCN1 expiring to still obtain the date from their previous assessment. There is a 12 month lapse on your current qualification before you then become an initial candidate. 

The course is run over 4 days which is broken down to 2 days theory training, 1 day written assessment and 1 day practical assessment. 

We include CCN1 core domestic, CENWAT, HTR1, CKR1, MET1, CPA1 and your domestic gas saftey on-site guides 1 & 2. 

All of our short courses include lunch and refreshments.​

What you require: 

A calculator 

Note pad  

Copy of your qualifications 

Gas safe register card

2 passport sized photographs 



The assessments for this qualification are open book.  

CCN1 Re-assess

  • Please ensure you have read and understood our terms and conditions before making a booking via our website, verbally by phone, in person or by email. By making a booking or reserving a place you will be deemed to have accepted our terms and conditions and therefore will be entering a contract with Tungsten Training Centre. All bookings verbally or written are subject to Tungsten Training Centres terms and conditions and constitute a legal binding contract under English Law.

Tungsten Training Centre Ltd
Unit 4 Tungsten Building 
George Street
BN41 1RA

VAT Number - 239 0603 18

Company Reg No - 10002824

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