CCN1 Gas Safety Regulations 2 — Questions and Answers
Question 1: What are the three Gas Industry Unsafe Situations Procedures (GIUSP) classifications?
- Immediately Dangerous (ID), At Risk (AR), and Not to Current Standards (NCS) (Correct answer)
- Critical, Serious, and Minor
- Red, Amber, and Green
- Emergency, Urgent, and Advisory
Correct answer: Immediately Dangerous (ID), At Risk (AR), and Not to Current Standards (NCS)
The Gas Industry Unsafe Situations Procedures define three classifications: Immediately Dangerous (ID) — risk to life; At Risk (AR) — not immediately dangerous but could become so; and Not to Current Standards (NCS) — not meeting current standards but safe in the short term.
Question 2: What action is taken for an 'At Risk' (AR) gas appliance?
- Warn the user, provide written warning, and advise the appliance should not be used until repaired (Correct answer)
- Disconnect it immediately without user consent
- Leave it and advise the user to call for repair within 28 days
- Report it to the gas transporter and take no further action
Correct answer: Warn the user, provide written warning, and advise the appliance should not be used until repaired
For an AR situation, the engineer advises the user of the risk, provides a written warning notice, and recommends the appliance is not used until repaired. If the user refuses repair, the engineer should disconnect with their agreement.
Question 3: What does 'Not to Current Standards' (NCS) mean in the GIUSP classification?
- The appliance or installation does not meet current standards but presents no immediate or near-term risk — the owner should update when practicable (Correct answer)
- The appliance is dangerous and must be replaced immediately
- The installation was legal when fitted but is now illegal
- NCS applies only to commercial gas installations
Correct answer: The appliance or installation does not meet current standards but presents no immediate or near-term risk — the owner should update when practicable
NCS means the installation does not meet current standards (e.g. it was installed under older regulations), but is not unsafe in the short term. The owner should be advised to update the installation when practicable.
Question 4: Under the GSIUR 1998, what must a Gas Safe engineer carry at all times?
- Their Gas Safe ID card showing their registration number and the appliance types they are competent to work on (Correct answer)
- Their employer's liability insurance certificate
- A copy of the Gas Safety (Installation and Use) Regulations 1998
- A risk assessment for every job they attend
Correct answer: Their Gas Safe ID card showing their registration number and the appliance types they are competent to work on
Gas Safe engineers must carry their Gas Safe ID card, which shows their registration number and the specific appliance categories they are competent to work on. Customers have the right to check the card.
Question 5: What duty does a Gas Safe engineer have if they suspect a gas escape in a property they are visiting?
- Follow the gas emergency procedure: ventilate, warn occupants, turn off the gas supply at the meter if safe, and contact the National Gas Emergency Service (0800 111 999) (Correct answer)
- Carry out their planned work and report the escape at the end
- Check for the escape source using a naked flame
- Report it to the landlord only if the property is rented
Correct answer: Follow the gas emergency procedure: ventilate, warn occupants, turn off the gas supply at the meter if safe, and contact the National Gas Emergency Service (0800 111 999)
If a gas escape is suspected, the engineer must follow the standard gas emergency procedure: ventilate by opening windows and doors, warn occupants, turn off the gas at the meter if accessible, avoid creating ignition sources, and call 0800 111 999.
Question 6: What is the purpose of Regulation 34 of the GSIUR 1998?
- It prohibits the use of gas fittings that are known to be dangerous or that have not been properly maintained (Correct answer)
- It sets annual service intervals for all domestic boilers
- It requires gas appliances to carry a CE marking
- It prohibits gas work on Sunday and public holidays
Correct answer: It prohibits the use of gas fittings that are known to be dangerous or that have not been properly maintained
Regulation 34 requires that no person uses a gas fitting or allows it to be used if they know or suspect it to be dangerous. This places a duty on both occupiers and engineers to prevent use of dangerous fittings.
CCN1 Gas Safety Regulations 2
What are the three Gas Industry Unsafe Situations Procedures (GIUSP) classifications?