The Department of Local Government, Industry Regulation and Safety(LGIRS), an agency of the Western Australian (WA) Government, are the custodians of a substantial historical mining exposure dataset. The Safety Regulatory System (SRS) is arguably one of the world's largest worker exposure databases, dating back to the mid-1980’s. De-identified exposure data from the SRS was analysed to assess the potential impacts of the recent changes to workplace exposure standards (WESs) for welding fumes (WF), diesel particulate matter (DPM) and respirable crystalline silica (RCS) on industry compliance within the mining sector in Western Australia (WA). The following resources report the findings of these analyses.