Site Traffic Management Specialist – Category A/B | Practical Assessment

STMS Management Specialist Course A/B

The STMS Cat A/B course is required for those needing to actively manage Temporary Traffic Management works on category A and B roads.

  • A Category A road is defined as a single lane with speeds less than or equal to 60kph;
  • A Category B road is single lane speeds 70km/h or more and includes passing lanes (but not motorways or expressways).

Assessed through Unit Standards 31963.

This is a Waka Kotahi NZTA Warranted role.

Who is it for?

The STMS Cat A/B (Practicing) course is for those who have completed their STMS A/B NP and need to supervise worksites on Category A/B roads.

You will be trained and assessed on the key elements for these roads, and on successful completion will be awarded the full practicing STMS A/B.

Any there any prerequisites?

The STMS Cat A/B NP Course.


One day of practical.

What does it teach you to do?

People who successfully complete the STMS Category A/B (Cat A/B) training will know:

  • the key requirements for planning, managing and setting out worksites on Cat A and Cat B roading environments.
  • have demonstrated their competence via assessment in actively managing a range of live worksites on these roads.
  • how to locate information in the CoPTTM relating to Cat A and Cat B roading environments.

Upcoming STMS Cat A/B courses

The STMS Cat A/B course is run on demand, so we can work around your busy schedule! For more information or to book your STMS training, contact us for more information.

STMS Category A/B Training NZ FAQ

What is an STMS?

A category A/B STMS is a Site Traffic Management Specialist who actively manages temporary traffic management works on category A and B roads.

How do I get my STMS certification?

To get your STMS Cat A/B certification, you must complete the STMS Cat A/B NP course as a prerequisite, before attending the TTMTC Site Traffic Management Specialist assessment.

How long does an STMS certification last?

The STMS Cat A/B certification is valid in NZ for three years. STMS Refresher courses are available and are an additional one-day classroom-based course, followed by a one-day practical assessment.

How many days is an STMS course?

The STMS Cat A/B assessment is a one-day commitment to the practical assessment.