Environmental Protection (Liquid Waste) Regulations 1996Law:S4418:atom:currency2026-05-05T00:00:00.0000000+08:00Environmental Protection (Liquid Waste) Regulations 1996S4418:2017121113392017-12-11T13:39:00.0000000+08:00Environmental Protection (Liquid Waste) Regulations 1996Environmental Protection (Liquid Waste) Regulations 1996PCO Helpdesklegislation@pco.wa.gov.au