It’s time to explore our campus to find out about studying at Crawley College.
Why choose this course?
The CCN1 qualification is the foundation of domestic gas competence and is a mandatory requirement for engineers carrying out gas work in domestic properties. This course enables candidates to refresh their knowledge of current gas safety legislation, industry standards, gas installation requirements, combustion principles, ventilation, flues, tightness testing, and purging procedures. Successful completion demonstrates continued competence, supports Gas Safe registration requirements, and ensures engineers remain up to date with current regulations and safe working practices.
Further information
The NICEIC Core Domestic Gas Safety (CCN1) course is designed for experienced gas engineers who need to renew their core gas safety qualification and maintain Gas Safe Register eligibility. It is suitable for operatives working on domestic gas installations and appliances who already hold a current or recently expired CCN1 qualification and require reassessment.
- Understand current gas safety legislation and industry standards.
- Refresh your knowledge of the Gas Safety (Installation and Use) Regulations.
- Review procedures for gas tightness testing and purging.
- Understand the requirements for combustion, ventilation, and flues.
- Learn how to identify unsafe situations and classify gas installations correctly.
- Refresh your understanding of gas controls, pipework, and installation standards.
- Review emergency procedures relating to gas escapes and unsafe appliances.
- Understand safe working practices when carrying out gas work.
- Learn how to interpret current guidance and technical standards.
- Maintain the core knowledge required to demonstrate ongoing gas competence.
After successfully completing the NICEIC Core Domestic Gas Safety (CCN1) qualification, candidates can progress onto appliance-specific qualifications to expand the scope of gas work they are competent to undertake. Common progression routes include:
- CKR1 – Domestic Gas Cookers
- CENWAT – Domestic Gas Central Heating Boilers and Water Heaters
- HTR1 – Domestic Gas Fires and Wall Heaters
- MET1 – Domestic Gas Meters
- DAH1 – Domestic Warm Air Heaters
Candidates who achieve the relevant appliance qualifications and meet the required criteria can apply for or maintain registration with the Gas Safe Register, enabling them to carry out gas work legally and safely within their area of competence.
Further career development opportunities may include specialist training in:
- Unvented Hot Water Systems
- Water Regulations
- Heat Pump Installation and Maintenance
The course is delivered through classroom-based theory and practical sessions supported by technical discussions, worked examples, and review of current regulations and standards. Candidates will be assessed through a series of theory examinations, as required by NICEIC Certification.