The Gas Safety (Installation and Use) Regulations 1998. Made. 3rd October 1998. Laid before Parliament. 9th October 1998. Coming into force. 31st October 1998. The Secretary of State, in exercise of the powers conferred on him by sections 15 (1), (2), (4) (a), (5), (6) (b) and 82 (3) (a) of, and paragraphs 1 (1), (2) and (3), 4 (1), 12, 15 (1