CCN1 (ACS) Practical Assessment

The CCN1 ACS reassessment (renewal) is for candidates who have previously held a Gas Safe Registration and are required to renew their ACS to enable them to continue working under the Gas Safe Scheme. Depending upon the work area specified, the candidate would normally undertake a ‘core’ assessment, e.g. CCN1, followed by one or more appliance or specialised assessments.
Domestic Natural Gas - CCN1 Including Combustion Performance Analysis.
CENWAT - Central Heating Boilers and Water Heaters
CKR1 - Cookers
HTR1 - Heaters
MET1 - Metres