 On 15 August 2011, the New Zealand Transport Agency (NZTA), Porirua City Council, and Transpower New Zealand Limited jointly applied to the Environmental Protection Authority (New Zealand) (EPA) for notices of requirement and resource consents for the Transmission Gully Proposal.On 4 May 2012, after a series of public hearings, the EPA-appointed board of inquiry into the Transmission Gully proposal stated in a draft decision that it would grant resource consents for the project.On 22 June 2012, the Environmental Protection Authority released the Transmission Gully Board of Inquiry's final report.