Austroads, the peak body of Australasian road transport
and traffic agencies, require new and existing road safety
products to comply to the updated testing guidelines of AS/
NZS3845.1 (2015) and AS/NZS3845.2 (2017).

Road safety products must now be tested to the American Association
of State Highway and Transport Officials (AASTO) 2009
Manual for Assessing Safety Hardware (MASH) guidelines.
MASH testing supersedes NCHRP 350 testing for New
Zealand road barrier products.

After extensive vehicle impact tests were undertaken on
the Signfix and Optimast product ranges by a leading FHWA
testing facility, the Signfix and Optimast product ranges are
MASH compliant and approved by Austroads Safety Barrier
Assessment Panel (ASBAP) for use on the New Zealand
road network.

https://signfix.co.nz/mash-approved/mash-approved/optimast-frangible-sign-support-structure/