Application and duties
3.—(1) Subject to Schedule 2 (which sets out exceptions to the Regulations)–
(a)Part II shall apply to or in relation to pressure systems and transportable gas containers;
(b)Part III shall apply to or in relation to pressure systems;
(c)Part V shall apply to or in relation to transportable gas containers,
which are used or intended to be used at work.
(2) Any requirement or prohibition imposed by these Regulations on an employer in respect of the activities of his employees shall also extend to a self-employed person in respect of his own activities at work.
(3) Any requirement or prohibition imposed by these Regulations on a person–
(a)who designs, manufactures, imports or supplies any pressure system or transportable gas container, or any article which is intended to be a component part of any pressure system or transportable gas container, shall extend only to such a system, container or article designed, manufactured, imported or supplied in the course of a trade, business or other undertaking carried on by him (whether for profit or not);
(b)who designs or manufactures such a system, container or article, shall extend only to matters within his control.
(4) The provisions of Schedule 3 (which relate to the modification of duties in cases where pressure systems are supplied by way of lease, hire or other arrangements) shall have effect.