Form of control and RAB indexation

The Commission is currently reviewing the input methodologies (IMs), which it is required to do within 7 years of setting them.

This page relates to two key topics for the IM review:

  • the form of control for price-quality regulated businesses
  • the indexation of the regulatory asset base (RAB).

We published our draft decisions papers, except for the Report on the IM review, on 16 June 2016. All papers and supporting documents, including draft amendments to the IM Determinations can now be found on the main IM review page.

Read the final reasons paper for the IMs review decisions topic paper 1 – Form of control and RAB indexation for EDBs, GPB and Transpower.