The Commission for Regulation of Utilities (CRU) scheme consists of a Domestic Gas Safety Assessment (DGA) which is designed to test the gas safety competence of a Registered Gas Installer (RGI) in domestic gas work by practical and knowledge and understanding assessment.
The engineer must present a current original RGII Identification card and registration number.
Where the engineer is not a member of RGII, a letter from RGII must be supplied including a provisional RGII Registration Number.
Assessments consist of a combination of practical and theory examinations. RGII will be notified of certification results.
Certificates are normally valid for 5 years. On expiry, candidates are eligible to take re-assessment. The re-assessment can be taken up to 6 months prior to the expiry date of the initial qualification. Previous certificates must be presented to the assessment centre as evidence of holding the initial qualification.