Input methodologies for fibre

Input methodologies (IMs) are the rules, requirements and processes we have determined for regulated fibre fixed line access services (FFLAS). IMs provide increased certainty on how price-quality paths and information disclosure requirements are set for regulated FFLAS. IMs are one part of the regulatory framework we work with. They bind both us and suppliers of the regulated services.

The purpose of IMs is to promote certainty for regulated fibre service providers, access seekers, and end-users in relation to the rules, requirements, and processes applying to the regulation, or proposed regulation, of FFLAS.

The IMs for regulated fibre businesses were first determined in 2020 and there have been amendments made to the IMs since then. The reasons for the IMs are captured in the reasons papers for the original IM determination and all subsequent amendment determinations – these can be found in the links below.

Current input methodologies for Fibre

These are the current IMs that apply to regulated fibre providers.

Past amendments and clarifications

These are the past decisions we have made related to IMs for regulated fibre businesses, and the process of how we got to these decisions.

Amendments to the fibre input methodologies for the 2025-2028 fibre price-quality path

Setting the 2020/21 fibre input methodologies

We began work on the fibre input methodologies (IMs) in 2018 and first determined the IMs in 2020.

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