WA DWER launches new Priority Project Pathway to streamline environmental approvals.

Overview

The Western Australian Department of Water and Environmental Regulation has officially launched its new Priority Project Pathway, a targeted administrative reform designed to dismantle the sequential regulatory bottlenecks that have historically delayed major infrastructure, resource, and green energy developments across the state. This pathway introduces parallel processing, allowing project proponents to advance secondary environmental approvals, including works approvals and native vegetation clearing permits, concurrently with primary Environmental Protection Authority assessments under Part IV of the Environmental Protection Act 1986 (WA). This structural shift represents a critical operational development for environmental consultants, developers, planning lawyers, and local councils navigating Western Australia’s rigorous regulatory landscape.

Historically, the Western Australian environmental approvals process has functioned as a linear, highly fragmented series of statutory hurdles. Proponents were legally restricted from obtaining secondary operational licences and clearing permits until the overarching Part IV ministerial assessment concluded, a process that regularly introduced multi-year delays, inflated project holding costs, and stalled capital deployment for state-significant projects. By transitioning to a concurrent assessment model, the Department of Water and Environmental Regulation aims to deliver compressed project timelines and accelerate state-significant developments without weakening the environmental standards that protect the state’s unique biodiversity and water resources.

For environmental practitioners and their clients, understanding the operational mechanics of the Priority Project Pathway is essential for project planning and financial risk modelling. The introduction of this concurrent model requires a fundamental reappraisal of how development applications, baseline site investigations, and engineering designs are staged. Because approvals will run in parallel, environmental risks must be identified, quantified, and managed much earlier in the project lifecycle, shifting the traditional sequence of due diligence and detailed site characterisation.

Key details

To navigate the technical mechanics of the Priority Project Pathway, practitioners must examine the legislative interaction between Part IV and Part V of the Environmental Protection Act 1986 (WA). Under the historical application of Section 41 of the Act, decision-making authorities were restricted from making any decision that would allow a referred proposal to be implemented before the Environmental Protection Authority completed its assessment and the Minister issued a statement. While this statutory restriction remains, the Priority Project Pathway establishes a formal mechanism where the Department of Water and Environmental Regulation can accept, validate, and fully assess applications for secondary approvals, such as Part V Division 2 native vegetation clearing permits and Part V Division 3 works approvals, in parallel with the ongoing EPA Part IV review.

The administrative architecture of this pathway includes several distinct operational enhancements designed to streamline communication and resolve agency conflicts. Proponents of priority projects are assigned a single point of contact within the department and granted early access to a dedicated scoping officer. This scoping officer is tasked with coordinating cross-agency alignment to ensure that whole-of-government advice is integrated and consistent, eliminating the conflicting regulatory feedback that often arises from disparate departments. Furthermore, the pathway establishes a dedicated fast-track stream specifically targeting green energy transition projects, recognizing their role in meeting state and federal decarbonisation targets.

A key component of this regulatory overhaul is the integration of the new Environmental Impact Assessment Practice Guide, developed by the Environmental Protection Authority. This guide will become the primary reference and legally enforceable framework for environmental assessments starting on 1 January 2026. This timeline provides a transitional window during which proponents and consultants must align their assessment methodologies with the new, consolidated guidelines, which replace a patchwork of historical guidance documents and policy statements.

In practice, the concurrent pathway means that the technical assessments for clearing permits, which evaluate factors like flora, fauna, and ecological communities, and works approvals, which evaluate industrial emissions, waste discharges, and pollution control equipment, will run side-by-side with the high-level assessment of key environmental factors. While the final secondary permits cannot be formally granted until the Part IV ministerial statement is signed, having the administrative and technical reviews completed concurrently means the secondary approvals can be issued almost immediately after ministerial approval is secured, saving months of sequential waiting time.

Australian context

The introduction of the Priority Project Pathway in Western Australia parallels a broader national trend towards streamlined environmental planning, yet it must be interpreted within the distinct legal architecture of Australian environmental frameworks. Nationally, the Commonwealth Environment Protection and Biodiversity Conservation Act 1999 is undergoing significant reform under the federal Nature Positive Plan, which similarly seeks to reduce red tape while strengthening environmental outcomes. The alignment of Western Australia’s new pathway with these federal directions is critical, especially for projects requiring bilateral assessments where both state and federal approvals must progress in tandem.

When contrasted with other Australian jurisdictions, the Western Australian reform reflects established models of coordinated approvals. For example, in New South Wales, the State Significant Development and State Significant Infrastructure pathways under the Environmental Planning and Assessment Act 1979 allow for highly integrated, multi-agency assessments where planning approvals and environmental licences are coordinated concurrently. Similarly, Queensland uses the Coordinated Project declaration process under the State Development and Public Works Organisation Act 1971 to streamline major approvals. Western Australia’s new model seeks to capture these efficiencies while maintaining the independence of its Environmental Protection Authority and the strict statutory boundaries of the Environmental Protection Act 1986.

Furthermore, this regulatory evolution intersects with key national environmental guidelines, such as the National Environment Protection (Assessment of Site Contamination) Measure 1999 (NEPM 2013) and the PFAS National Environmental Management Plan. In projects where site contamination, soil management, or groundwater protection are critical environmental factors, the coordination of Part IV assessments with Part V works approvals ensures that contamination investigations are aligned with both high-level environmental impact assessments and detailed operational licences. Rather than managing site investigation data separately for different regulatory bodies, practitioners must now synthesise their technical findings to satisfy both the broad environmental objectives of the Environmental Protection Authority and the specific licensing thresholds of the Department of Water and Environmental Regulation concurrently.

Practical implications

For environmental practitioners, site owners, and developers, the shift to a concurrent assessment model demands a radical restructuring of project management and capital allocation strategies. The primary practical implication is the necessity of front-loading detailed engineering and baseline environmental assessments. Under the historical sequential system, developers frequently deferred detailed engineering designs, which are required for complex Part V works approvals, until they had secured the high-level Part IV ministerial approval. This strategy minimised the financial risk of investing in detailed design for a project that might ultimately be rejected or heavily modified by the Environmental Protection Authority.

Under the Priority Project Pathway, maintaining this cautious, sequential engineering strategy will negate the time-saving benefits of the new pathway. To capitalise on parallel processing, developers must accept the risk of committing capital to detailed design, baseline flora and fauna surveys, and contaminated land investigations much earlier in the planning phase. Environmental consultants must design robust, multi-disciplinary sampling and analysis plans that simultaneously satisfy the requirements of a Part IV strategic assessment and the highly specific, quantitative criteria required for Part V clearing permits and works approvals.

This shift also introduces distinct risk-management challenges. If the Environmental Protection Authority’s Part IV assessment results in significant changes to the project’s footprint, layout, or operational parameters, any parallel secondary applications already under assessment may require extensive revisions. This could lead to administrative delays, additional fees, and potential misalignment between the revised Part IV conditions and the concurrent Part V applications. To mitigate these risks, project teams must establish rigorous change-management protocols, ensuring that any modifications driven by the assessment are instantly reflected in the secondary permit documentation. Consequently, close and continuous liaison with the assigned scoping officer will be a critical task for the lead environmental consultant on any priority project.

Article Summary

From a contaminated land and senior advisory perspective across Australia, this Western Australian reform is a double-edged sword that will expose unprepared developers to substantial capital write-offs. In our experience, clients frequently treat environmental due diligence and detailed site investigations as late-stage tick-the-box exercises. Under the new Priority Project Pathway, this legacy approach is functionally obsolete. If you are advising on major infrastructure or green energy transactions, the critical deliverable that must change immediately is the Environmental Due Diligence Report and the associated Approvals Strategy Roadmap.

Specifically, the project-stage decision regarding the timing of the Detailed Site Investigation and waste classification pathways must be brought forward to the pre-feasibility phase. In states like New South Wales, Victoria, and South Australia, we have seen similar parallel models stall because consultants designed sampling programmes that met general planning requirements but lacked the precision needed for specific waste and discharge licences. For Western Australian projects, if your parallel Part V works approval application relies on incomplete contamination data, any late-stage discovery of PFAS or acid sulfate soils will derail both the secondary permit and the concurrent Part IV assessment. Practitioners must design early-stage, high-density sampling plans that satisfy both strategic environmental impact assessments and granular licensing thresholds simultaneously. Do not let parallel processing lure you into fast-tracking incomplete science.

References and related sources

• Primary source: www.ashurst.com

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This is an iEnvi Machete news summary. Prepared by iEnvi to summarise the source article for contaminated land, groundwater, remediation, approvals and site risk professionals.

Published: 21 May 2026

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