Guide

The Gate Person requirement and the two dates in circulation

Issue 5 of NHSS 12D added a mandatory training category for the person who controls entry into or through a traffic management system. Two different start dates were published. Both have passed.

Written . Last checked against the scheme document and Lantra's statement on .

What was added

When Issue 5 of the 12D scheme document was published in July 2025, its only substantive change was to add the Gate Person, also written as the Gateperson or Airlock Installer, in two places. It became a defined term in the definitions section, and it became a training category in the appendix that lists the skills a 12D organisation's people must hold. The scheme document says the change was made to align 12D with the requirement that already existed in 12A/B, the motorway and high-speed scheme, where gates and airlocks have been part of the picture for longer.

What the role covers, in plain words

A gate, sometimes called an airlock, is the controlled point where vehicles and people enter or leave a closed section of road. The Gate Person is the worker stationed there to control that entry and exit: checking who is allowed through, holding traffic back while works vehicles move, and making sure the closure is not breached. The scheme treats it as an awareness role for anyone involved in controlling entry into or through a traffic management system, and it applies whether the person doing it is a labourer, an operative or a supervisor stepping in for a shift.

Three things follow from how the category is written.

  • It is mandatory for the role, not for everyone. Only people who control the gate need it. A crew that never operates a gate does not need anyone trained in it, but a firm that does convoy or closure work almost certainly does.
  • It is an add-on, not an entry ticket. The course is a half-day awareness session with a test paper and no site assessment. To attend, the learner must already hold a valid basic course card (the TTMBC) or another current 12A/B, 12C or 12D skill other than M7.
  • It does not let anyone install a closure. A Gate Person as such cannot set out or take down the traffic management. Installation still needs the relevant operative modules.

The two dates

The scheme document says the category is mandated from 1 September 2025. Lantra's statement of 8 July 2025, published alongside the new issue, says the course becomes mandatory for everyone required to operate a gate from 1 October 2025. Both are official, both are dated, and neither document explains the other. Our reading is that the scheme document's date is the one an assessor will point to, because it is the document the certification body audits against, and that Lantra's later date reflects the time training providers needed to schedule courses. We have not found anything that resolves the difference.

In practice it no longer matters which is right. Both dates are more than a year in the past, so the requirement is in force under either reading. What matters now is whether every person who has operated a gate since then holds the category.

For completeness: Lantra's news log in July and August 2024 had announced the Gate Person course as mandatory from 1 January 2025. That announcement was framed as a 12A/B change, and it predates the 12D scheme document that made the category mandatory for 12D. If someone in your firm remembers a January 2025 date, that is where it came from.

What to check in your own records

  1. List every job since September 2025 where a gate or airlock was used, and who staffed it on each shift.
  2. Check each of those people on a card checker for the Gate Person category with a date still in the future. The category has its own expiry like any other skill.
  3. Make sure your training matrix has a column for it. A matrix built to Issue 4 will not.
  4. Check your method statements and site briefings name the gate role and who is filling it.
  5. If anyone operated a gate without the category after the mandate date, record it as a nonconformity with the training booked, rather than hoping it is not sampled.

Why assessors notice it

Because it is the one thing that changed in the current issue, it is a simple way for an assessor to see whether an organisation has read Issue 5 at all. A training matrix that still stops at M6 and M7, with no Gate Person column, says more about document control than about gates.

SchemeReady's training questions include the Gate Person category and the card-check dates that go with it; see what you get.