Infrastructure WA

Major Infrastructure Proposal Assessment

Infrastructure WA to assess major infrastructure proposals from 1 January 2022

From 1 January 2022, Infrastructure WA’s (IWA) Major Infrastructure Proposal Assessment (MIPA) function will come into effect. IWA will assess major infrastructure proposals with a capital cost of $100 million or more, consistent with its responsibilities under the Infrastructure Western Australia Act 2019.

The MIPA function will support and align with existing government requirements such as Department of Treasury’s Strategic Asset Management Framework and Infrastructure Australia’s Assessment Framework, while providing relevant advice to the WA Government to support informed investment decisions.

Interim guidelines

The Major Infrastructure Proposal Assessment: Interim Guidelines, and frequently asked questions provide state agencies and government trading enterprises with guidance on how to navigate MIPA requirements and the assessment process.

The MIPA Interim Guidelines outline the full details of how proposals will be assessed by IWA, and the content requirements for submissions.

The MIPA function will only focus on projects in 2022 while in its initial phase, with further considerations given to programs from 2023.

During the first 12 months IWA will continue to work in collaboration with stakeholder agencies and government trading enterprises to refine the MIPA process and finalise the guidelines. Updated MIPA guidelines are proposed to be released by late 2022, to commence on 1 January 2023.

Information sessions on this new function and its requirements will be held in early 2022.

IWA invites anyone with questions or comments relating to MIPA to please contact us at or 08 6552 5229.