About the Course
- Merthyr
- 01 August 2025
- PLA
Course Outline
The Core Domestic Gas Safety Assessment (CCN1) is a foundational qualification for gas engineers in the UK. It’s a mandatory certification for anyone working on domestic gas appliances and systems, and it must be renewed every five years.
Entry Requirements
Category 1 – Experienced Gas Operatives Already hold or have previously held ACS certification (e.g. CCN1). May be applying for reassessment (required every 5 years). If the certificate expired more than 12 months ago, they must take the initial assessment again1. Category 2 – New Entrants with Related Skills Have transferable skills (e.g. qualified plumbers or heating engineers). Must complete a Managed Learning Programme (MLP) or equivalent gas training. Must compile a portfolio of supervised on-site gas work with a registered Gas Safe engineer2. Category 3 – New Entrants with No Prior Experience No relevant qualifications or experience. Must complete a full Managed Learning Programme (MLP), such as the Gas Foundation Course certified by BPEC. This includes both classroom training and supervised practical experience3.
What will I learn?
Gas safety legislation and British Standards Gas emergency procedures Identification and classification of unsafe situations Combustion, flueing, and ventilation principles
Tightness testing and purging procedures Pressure and gas rate calculations Installation and commissioning of pipework and appliances Use and setting of regulators and burner pressures
Hands-on fault diagnosis Safe installation and disconnection of appliances
Service and maintenance procedures Visual inspections and performance checks Use of test equipment and documentation
Course Assessment
Theory Test, Practical assessment, Professional Observation
Career Progression
Domestic Gas Engineer, Multi- Appliance Engineer, Senior Engineer/Technical Supervisor
Duration
01 August 2025 - 31 July 2026
