Home WA Government Publications BA18 – Certificate of building compliance BA18 – Certificate of building compliance Form Prescribed forms for the building approval process. Last updated: 23 November 2024 View all Building Act forms Documents BA18 – Certificate of building compliance (PDF, 261.61KB) BA18 – Certificate of building compliance (Word) (DOC, 138.5KB) Sidebar Published 7 November 2024 Provided by Department of Energy, Mines, Industry Regulation and Safety > Building and Energy Share Facebook share(Opens in a new tab/window) Twitter(Opens in a new tab/window) LinkedIn(Opens in a new tab/window) Copy URL