http://www.legislation.gov.uk/uksi/1992/3004/signature/madeThe Workplace (Health, Safety and Welfare) Regulations 1992Health and safety at workWaste policies and regulationKing's Printer of Acts of Parliament2021-05-06HEALTH AND SAFETYThe Workplace (Health, Safety and Welfare) Regulations 1992reg. 6(3)(b)The Dangerous Substances and Explosive Atmospheres Regulations 2002Sch. 7 Pt. 2reg. 1(b)Signed by order of the Secretary of State.Patrick McLoughlinParliamentary Under Secretary of State,Department of Employment1st December 1992