44 Bowen Street
Private Bag 6995
Wellington 6141
New Zealand
T 64 4 894 5400
F 64 4 894 6100
6 October 2025
www.nzta.govt.nz
New Zealand Council for Civil Liberties
[FYI request #31384 email]
Ref. NZT-10818
Dear New Zealand Council for Civil Liberties
Thank you for your fol ow up email of 22 July 2025 following our response to OIA-18764. I apologise
for the delay in replying to you.
The format and volume of reporting depends on the scale of the incident, and NZ Transport Agency
Waka Kotahi (NZTA) maintains extensive documentation across multiple formats and systems. For
environmental incidents these may include:
• Operational reporting as events unfold and Response and Recovery actions take place.
• Regional reporting from operational teams to regional and national leadership groups.
• Consolidated national reporting to executive leadership teams.
• Board reporting aligned with NZTA board meetings.
In the case of North Island Weather Events (NIWE), the complexity and scale of the events, spanning
multiple regions and overlapping weather systems, meant that reporting was distributed across
numerous operational and emergency response streams. These were regularly reviewed by our
Executive Leadership Team and reported to the NZTA Board through structured updates and financial
oversight mechanisms.
We appreciate your interest in understanding how lessons are learned and shared. NZTA is committed
to learning from past experiences to improve its approach to incident and emergency management.
This commitment includes looking at learnings from other reviews, including national level system wide
reviews, where there are clear opportunities presented, as wel as reviews carried out focused on
NZTA responses and exercises. NZTA’s approach to continuous improvement is set out in the
Lessons Management Guide, which is based on New Zealand and Australia’s lessons management
framework.
Multiple lessons learnt reports have been produced by NZTA and other organisations fol owing
environmental incidents over the past five years.
Please feel free to make any further requests for information under the Official Information Act 1982
and we are happy to work with you on that if you do.
Yours sincerely
Andrew Clark
National Manager Maintenance & Operations