A gas installation is defined as the piping, fittings and appliances downstream of the point of supply. This, may be from a distribution system or a cylinder supply.

The definition of point of supply is used in:

Design and construction

Gas installations must be constructed so they are safe when used for their intended purpose.

Design and construction

Certification

Gas installation and certain other gasfitting work must be certified by a certifying gasfitter or other person authorised under the Plumbers Gasfitters and Drainlayers Act 2006.

Certification

Connection

The Regulations place obligations on those responsible for connecting a gas installation to a gas supply.

Connection