1 .F1 In this Schedule—N.I.
“gas fittings” means any fittings, apparatus and appliances designed for use by consumers of gas for heating, cooking, lighting, motive power and other purposes for which gas can be used;
“gas system”, in relation to any premises, means any service pipe or other apparatus (not being a gas fitting) which is on the premises and is used for the conveyance or supply of gas to the premises or is connected with a gas main;
“relevant authority”
in relation to dangers arising from the conveyance of gas by a relevant licence holder, or from the use of gas conveyed by such a licence holder, means that licence holder or the Department; and
in relation to dangers arising from the conveyance of gas by a person other than a relevant licence holder, or from the use of gas conveyed by such a person, means that person or the Department;
“relevant licence holder” means the holder of a licence under Article 8(1)(a);
“service pipe” means a pipe which is connected with a gas main for the purpose of conveying gas from that main to any premises.F2