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.
Chorus's fibre price-quality path from 2029
Chorus’ third regulatory price-quality path applies from 1 January 2029.
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Changes to information disclosure requirements for airports 2026
We are working on improvements to information disclosed by airports.
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2026 Gas default price-quality path
DPP4 applies to gas pipeline services from 1 October 2026 to 30 September 2031.
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Wholesale Supply Inquiry
The Commerce Commission is carrying out an Inquiry into the wholesale supply of groceries to consider whether additional regulation should apply.
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Targeted Amendments to Airport Cost of Capital IMs
We are considering potential amendments to aspects of the Airport Input Methodologies for cost of capital.
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Interchange fee regulation
We monitor and regulate interchange fees charged on the Mastercard and Visa debit and credit networks to promote a competitive and efficient payment system.
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Recommendation to designate the interbank payment network
In 2024, we made a recommendation to the Minister of Commerce and Consumer Affairs, to designate the interbank payment network under the Retail Payment System Act.
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Regulation of Wellington’s water services
The Commerce Commission is proposing ongoing targeted economic regulation to improve transparency, accountability, and outcomes for Wellington consumers.
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Airport information disclosure template update 2026
We are making non-material changes to the information disclosure (ID) requirements for airports as required under Part 4 of the Commerce Act.
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IM Amendments – Treatment of government grants related to income
We are amending the IMs for EDBs, GPBs and Transpower for the treatment of government grants related to income.
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