Gas Safety (Management) Regulations 1996

means a safety case prepared pursuant to, and accepted by the Executive under, paragraph 3 of exemption No. 8 of 2016 granted by the Executive in pursuance of its powers under regulation 11(1) of these Regulations on 5th September 2016 to National Grid Gas Distribution Limited, a company registered in England and Wales with the company number 10080864.

means systematic assessment of the adequacy of the management system to achieve the purpose referred to in paragraph 6 carried out by persons who are sufficiently independent of the system (but who may be employed by the duty holder) to ensure that such assessment is objective;

means a report made pursuant to the arrangements referred to in paragraph 11 of Schedule 1 or paragraph 4 of Schedule 2 (to the extent that the later mentioned paragraph relates to arrangements for audit).

means bars (absolute);

means bars (gauge);

means a facility for the production of biomethane from biogas;

has the same meaning as in regulation 2(1) of the 1998 Regulations;

includes an electricity generating station used for generating electricity for use on the same premises on which it is situated;

has the same meaning as in regulation 2(1) of the 1998 Regulations;

means a person appointed pursuant to regulation 7(11);

means a network within the meaning of these Regulations as they had effect immediately before 6th April 2023.

means any substance in a gaseous state which consists wholly or mainly of methane;

means gas fittings as defined in regulation 2(1) of the 1998 Regulations as if the phrase “(other than the purpose of an industrial process carried out on industrial premises)” did not appear in that definition;

means any gas processing facility which— (a) blends or purifies gas, removes from gas any of its constituent gases or separates from gas any oil or water;

means a facility for the extraction of gas from strata or for the manufacture of gas;

means the gross calorific value, expressed in MJ/ m3, of a dry gas determined on the basis that the water produced by combustion is assumed to be condensed;

has the same meaning as in regulation 2(1) of the 1998 Regulations;

means a pipeline used for the conveyance of gas to Great Britain from another country;

means the organisation and arrangements established by the duty holder for managing his undertaking;

means milligrams per cubic metre under the reference conditions;

means gas which— (a) is biogas or produced from biogas, and (b) does not conform with the requirements specified in Part 1 of Schedule 3;

includes a pipeline, distribution main, service pipe and any ancillary plant connected to a pipe and used for the conveyance of gas, but it does not include a pipe downstream of an emergency control;

has the same meaning as in sections 28 to 32 of the Small Business, Enterprise and Employment Act 2015 (see section 32 of that Act).

(“RD”) means the ratio of VG to VA (expressed in the same units) where— • VG is the mass of a volume of the gas when containing no water vapour under the reference conditions;

means a biomethane production facility or a gas processing facility;

means a pipe used exclusively for conveying gas (including out of specification biogas) to— (a) the point where the gas is treated or blended, or (b) that point and non-domestic premises.

has the same meaning as in regulation 2(1) of the 1998 Regulations;

means an emergency endangering persons and arising from a loss of pressure in a network or any part thereof.

means the Gas Safety (Installation and Use) Regulations 1998;

means the Health and Safety Executive;

means—

has the same meaning as in regulation 2(1) of the 1998 Regulations;

means the Wobbe Number of the gas, which is calculated in accordance with the following formula—