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    Bilateral approvals deal: schedule and risk implications for WA mine projects

    April 23, 2026|

    Reviewed by Joe Ashwell

    Bilateral approvals deal: schedule and risk implications for WA mine projects

    First reported on Australian Mining

    30 Second Briefing

    The Federal and Western Australian Governments have agreed to progress a bilateral approvals agreement under the Environment Protection and Biodiversity Conservation Act to cut duplication in environmental assessments for mining and major projects. The deal would allow WA environmental impact assessments and conditions set by the WA Environmental Protection Authority to be formally accredited for Commonwealth purposes, reducing parallel federal referrals and assessment timeframes. For proponents planning large iron ore, lithium and critical minerals projects in the Pilbara and Goldfields, the change could materially compress pre‑construction schedules and simplify approvals risk management.

    Technical Brief

    • Mechanism hinges on accrediting Western Australian Environmental Protection Authority (EPA) assessment reports and conditions for Commonwealth decision-making.
    • Bilateral agreement is being progressed under existing Environment Protection and Biodiversity Conservation (EPBC) Act “assessment bilateral” provisions.
    • Commonwealth would still issue final approval decisions, but based primarily on WA EPA documentation rather than duplicate studies.
    • WA EPA processes, including public consultation and appeals, become the primary evidentiary basis for federal controlled‑action determinations.
    • Proponents could consolidate baseline studies and impact modelling into a single WA‑led environmental impact assessment package.
    • Commonwealth conditions are expected to be layered onto WA EPA conditions, rather than running parallel, conflicting regimes.

    Our Take

    For operators planning new projects in Western Australia, reduced duplication in approvals would mainly shift effort towards front‑loaded baseline studies and Indigenous engagement, as regulators increasingly expect a single, high‑quality submission rather than parallel, slightly different dossiers.

    Australian Mining’s recent coverage of METS exporters and automation (e.g. CSIRO’s remote operations work) suggests that any simplification of approvals could indirectly favour projects that can demonstrate lower on‑site impacts and stronger monitoring, as these are easier for both jurisdictions to sign off on under a bilateral regime.

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    Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.

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