Sch 3 para 1
(1) Regulating or prohibiting— (a) the manufacture, supply or use of any plant; (b) the manufacture, supply, keeping or use of any substance; (c) the carrying on of any process or the carrying out of any operation. (2) Imposing requirements with respect to the design, construction, guarding, siting, installation, commissioning, examination, repair, maintenance, alteration, adjustment, dismantling, testing or inspection of any plant. (3) Imposing requirements with respect to the marking of any plant or of any articles used or designed for use as components in any plant, and in that connection regulating or restricting the use of specified markings. (4) Imposing requirements with respect to the testing, labelling or examination of any substance. (5) Imposing requirements with respect to the carrying out of research in connection with any activity mentioned in subparagraphs (1) to (4) above.