Compressed natural gas (CNG) frequently asked questions

Do I need to be gas safe registered engineer to work on CNG refuelling facilities?

No. But you should ensure that anyone working on CNG refuelling facilities is trained and competent to carry out any work.

I have CNG refuelling facilities, do I need to comply with GSIUR?

Where the installation is downstream of an isolation valve and which meet the following criteria:

  1. form a system exclusively used for the compression of gas;
  2. are primarily used to supply compressed gas to vehicles; and
  3. incorporate one or more gas compressors having an electric motor input power rating exceeding 5 kilowatts,

are exempt from the requirements of most of the regulations. This amendment was introduced by The Gas Safety (Installation and Use) (Amendment) Regulations 2018 and brings these sites in line with other industrial premises.

For further information see Regulation 2(4)(g).

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