Building Regulations 1989Law:S4306:atom:currency2024-12-08T00:00:00.0000000+08:00Building Regulations 1989S4306:2012033010232012-03-30T10:23:00.0000000+08:00Building Regulations 1989Building Regulations 1989PCO Helpdesklegislation@pco.wa.gov.au