Guidance

NTSN: rolling stock – freight wagons

National Technical Specifications Notices (NTSNs) relating to rolling stock – freight wagons (WAG).

• From: Department for Transport
• Published: 2 May 2025

Applies to England, Scotland and Wales

Documents

NTSN: Rolling Stock – Freight Wagons (WAG) (Issue 2, 2 May 2025)

PDF, 1.23 MB, 92 pages

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NTSN: Rolling Stock – Freight and Wagons (WAG) (Issue 1, 1 January 2021)

ODT, 810 KB

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Details

This National Technical Specification Notice (NTSN) for rolling stock – freight wagons (WAG) applies to rail projects that will seek authorisation to place new, upgraded or renewed railway equipment into service.

There are 2 documents on this page:

• Issue 1 of the NTSN relating to WAG, published 1 January 2021
• Issue 2 of the NTSN relating to WAG, published 2 May 2025

Issue 2 replaces Issue 1 and applies to projects that will seek an authorisation to place WAG subsystems into service after 2 May 2025 (without prejudice to exemptions and transitional phases).

These NTSNs have been published by the Secretary of State for Transport according to regulation 3B of the Railways Interoperability Regulations 2011. 

In May 2025, the Secretary of State made updates to 7 NTSNs, which were informed by a consultation exercise and industry recommendation facilitated by the Rail Safety and Standards Board.

They are applicable in Great Britain only.

Published 2 May 2025