Regulatory projects | Commerce Commission

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Regulatory projects

This section contains all current and closed Commission regulatory projects. This includes determinations, reports, inquiries, studies and disclosures relating to telecommunications, grocery, fuel, water, the retail payment system, electricity lines, gas pipelines, airports and dairy.

IM Amendments – Treatment of government grants related to income

We have amended the IMs for EDBs, GPBs and Transpower for the treatment of government grants related to income.

2027 Fibre Input Methodologies Review

We are required to review the Fibre Input Methodologies (IMs) within 7 years of their publication. We commenced our review of them on 27 March 2025, and are required to complete this review by 13 October 2027.

2026/27 milk price manual

We are commencing our review of the milk price manual for the 2026/27 season and will publish our final report by 15 December 2026.

2027 Input Methodologies Review – Common cost of capital

The Common cost of capital IM review has implications across suppliers regulated under Part 4 of the Commerce Act and Part 6 of the Telecommunications Act (Fibre).

Confidentiality/OIA processes for applications

We consulted on draft new guidance on confidentiality and Official Information Act processes for our assessment of applications for clearance and authorisation under the Commerce Act 1986.

Point-to-point, Transport and Co-location services deregulation review

Section 210 of the Act provides for the Commission to consider whether continued regulation of FFLAS still benefits end-users, or whether competition has increased to a point where regulation is no longer necessary.

Regulation of Wellington’s water services

The Commerce Commission has introduced additional economic regulation for Tiaki Wai to improve transparency, accountability, and outcomes for Wellington consumers.

2026 Review of Local and Mobile Number Portability services Determination

Number portability services allow end-users to keep their local and mobile phone numbers when they switch service providers. We are reviewing the settings for these services before the current determination expires in December 2026.

2026 Review of the Measuring Broadband New Zealand programme

We are consulting on the future shape of the Measuring Broadband New Zealand (MBNZ) programme, including the minimum scope needed to continue providing consumers and industry with information about broadband performance.

Mobile Co-location Investigation

We are considering whether the continued regulation of Mobile Co-location is still necessary to promote competition.

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