LCL Awards CCN1 Core Domestic Natural Gas Safety + CENWAT1, CKR1, HTR1 Course
Includes: CCN1 (CPA1) + CENTWAT1, CKR1, HTR1
The LCL Awards Core Domestic Gas Safety (CCN1) Initial Assessment is an essential gas qualification for engineers working on core domestic gas systems under the ACS (Accredited Certification Scheme). This initial assessment validates your safety competence in line with UK gas regulations and enables progression in domestic gas installation and servicing roles.
If you already hold the CCN1 qualification, you can opt for our reassessment program to maintain your certification and be fully up to date. This is essential to remain compliant within the five-year validity period.
Why choose the LCL Awards CCN1 qualification?
The LCL Awards CCN1 (Core Domestic Gas Safety) qualification is widely recognised across the UK gas industry and meets the ACS requirements needed for domestic gas work and Gas Safe registration.
Assessed against current legislation and industry standards, it provides a robust and consistent measure of an engineer’s competence in core gas safety.
Choosing PASS as your training and assessment centre means you’ll be supported by experienced, industry-active assessors, purpose-built gas training facilities, and a centre with a strong focus on compliance and real-world competence. PASS delivers the LCL Awards CCN1 assessment in a professional, structured environment designed to help engineers demonstrate their knowledge confidently and accurately.
What does the CCN1 Course Cover?
This course assesses your practical and theoretical knowledge of core domestic gas safety to ensure safe and competent gas work. It focuses on core safety principles and key gas practices required under UK ACS standards.
Key Topics & Course Syllabus
You’ll be evaluated on a range of core domestic gas safety topics, combining practical tasks with knowledge checks
- Gas safety regulations, standards and legislative requirements
- Emergency actions and procedures for unsafe situations
- Characteristics of combustion, flueing and ventilation
- Domestic gas pipework: installation, testing and purging
- Tightness testing and pressure regulation checks
- Identifying unsafe situations and warning labelling
- Effective use of emergency isolation controls and valves
- Chimney standards and flue installations
- Re-establishing gas supply and appliance relighting
It certifies your competence in domestic natural gas safety, enabling you to work lawfully with gas installations and appliances.
New entrants aiming for Gas Safe registration and qualified engineers whose CCN1 has expired by more than 12 months.
A refresher or reassessment covers practical tests and multiple choice theory—successful candidates receive CCN1 and any appliances they qualify in.
Yes. You must hold CCN1 plus at least one appliance-specific module—such as CENWAT, CKR1, HTR1, or MET1—to register with Gas Safe Register.
- Written knowledge assessments
- Multiple-choice and short-answer questions
- Practical tasks observed by an ACS assessor
- All elements must be passed to achieve certification.
Yes. You must have a certain amount of on-site experience under supervision, plus a portfolio as evidence, to register for Gas Safe and sit assessments.
- CENWAT (Central Heating & Hot Water)
- CKR1 (Cookers)
- HTR1 (Gas Fires)
- DAH1 (Warm Air Heating)
24 hours (Mon-Fri).
