The Commerce Commission gives notice that it is considering potential amendments to targeted aspects of the Commerce Act (Specified Airport Services Input Methodologies) Determination 2010 (as amended) (“Airport IMs”).

In accordance with section 52V of the Commerce Act 1986 (“Act”), this notice outlines the scope of the potential amendments under consideration, and the proposed process and indicative timeframes for considering and consulting on the potential amendments to the Airport IMs.

Scope of Potential Amendments Under Consideration

The amendments we are considering making to the Airport IMs are to reconsider the equity beta (one of the fixed WACC parameters), in light of issues that were identified in the R Code that informed the Commission’s final decisions on cost of capital in the 2023 IM Review.

Proposed Process and Indicative Time Frames for Potential Airport IM Amendments

Updates and any refinements to our process steps and timelines will be published on the Commission’s website at: https://www.comcom.govt.nz/regulated-industries/input-methodologies/input-methodologies-for-electricity-gas-and-airports/airports-ims/.