Ready Steady Rules

Catering gas safety check (CP42)

The annual renewal of your commercial catering gas safety certificate — a Gas Safe registered engineer, qualified in the catering category, re-checks your gas appliances and, where fitted, retests the ventilation interlock, to IGEM/UP/19 ("CP42").

The annual renewal of your commercial catering gas safety certificate — a Gas Safe registered engineer, qualified in the catering category, re-checks your gas appliances and, where fitted, retests the ventilation interlock, to IGEM/UP/19 ("CP42").

The certificate you got before opening only covers you for a year. A leaking appliance or a failed interlock is a genuine fire and carbon monoxide risk, and an expired certificate is also what most insurers and environmental health officers ask to see first.

WHEN
Every 12 months from your last certificate — book a few weeks before it lapses so a re-check does not leave you without gas.
COST
£150–£450 depending on the number of appliances and whether the interlock needs retesting
indicative, checked 2026-08
WHO DOES IT
A qualified contractor
R2
LEGAL BASIS
Gas Safety (Installation and Use) Regulations 1998; IGEM/UP/19.
Find a Gas Safe registered engineer (catering)

Confirm they are qualified in the "catering" category, not just domestic gas.

Who this is for

Any venue with gas catering appliances.

What you’ll hold

  • CP42 / IGEM UP19 gas safety certificate
  • Ventilation interlock test record

Watch out for

Sources

See also

This is item 25 of 60 in the free UK Compliance Calendar. See the whole list →