How to Apply - Construction and Use Approvals of Notifiable Gas Installations

Definition of Notifiable Gas Installations (NGIs)

1. terminals for the importation of -
   1. liquefied petroleum gas; or
   2. natural gas in liquid form;

2. works for the manufacture of town gas, substitute natural gas or synthetic natural gas;

3. gasholders, including the pressure-raising and control equipment used in connection therewith;

4. high pressure gas mains or service pipes;

5. pressure-regulating installations which are supplied with gas from an intermediate or high pressure gas main or service pipe, but does not include such an installation the volumetric capacity of which is less than 30 standard cubic metres per hour;

6. stores containing liquefied petroleum gas, including, where such gas is supplied to consumers by way of pipes from such a store, any outlet pipework, vaporisers and pressure-regulating installations used in connection therewith; or

7. any process which involves the transfer or liquefied petroleum gas in liquid form from one container (other than a disposable cylinder) to another container, but does not include the transfer of such gas in such form from a ship or road tanker into a tank or road tanker.

"Store"

1. when used as a verb, means the containing of -
   1. town gas or natural gas in a gasholder; or
   2. liquefied petroleum gas in -
      1. a container which has a facility for withdrawing such gas in liquid form where such gas is, or is to be, supplied to consumers by way of gas pipes from such container; or
      2. any containers (including a single container) situated in the one place (including part of any premises) where the aggregated nominal water capacity of the containers is more than 130 litres,
   and "storage" shall be construed accordingly; and
2. when used as a noun, means any place (including part of any premises) where there is or are kept -
   1. a gasholder which contains or has contained town gas or natural gas;
   2. a container which -
      1. contains or has contained liquefied petroleum gas; and
      2. has a facility for withdrawing such gas in liquid form where such gas is, or is to be, supplied to consumers by way of gas pipes from such a container; or
   3. any containers (including a single container) -
      1. which contain or have contained liquefied petroleum gas; and
      2. the aggregated nominal water capacity of which is more than 130 litres.

• Appendix II