Latest updates to standards

Two new Rolling Stock documents have been published, one has been updated and two point releases have been published. Two technical notes have also been published.

RIS-2774-RST issue 1 - Application of Probabilistic Gauging Methods

This is a new standard which sets out requirements and guidance for the application of a Monte Carlo method to undertake probabilistic gauging calculations.

GEGN8502 issue 2 - Operation of Urban Rail Vehicles on or adjacent to GB Mainline Infrastructure

The update includes additional guidance on operations, energy, movement authority and station and platform design, as well as new guidance on cybersecurity, stations, remote condition monitoring (RCM) and mobile applications.

TN7300 issue 1 - Virtual platform edges

This new technical note aims to clarify the attributes used for calculating clearances and stepping distances with respect to real and virtual platform edge points.

TN2325 issue 1 - Traction capacitor safety awareness

This new technical note aims to provide an understanding of good design and maintenance practices for capacitors to reduce the risks of explosions caused by a range of failure modes leading to the build-up of gas in the capacitor.

GMRT2477 issue 3.1 - Compatibility Requirements for Track Circuit Assisters (TCAs) on Rail Vehicles

This sets out Great Britain (GB) requirements on where TCAs shall be fitted onto a vehicle and how they shall be set up. Amendments have been made in this point release.

RIS-2777-RST issue 1.1 - Functionality and Management of Track Circuit Assisters (TCAs) on Rail Vehicles

This document sets out requirements for the functionality, testing and management of failures of TCAs on rail vehicles. Amendments have been made in this point release.

Key Wagon Maintenance Principles issue 1

This new document sets out industry-agreed good practice relating to freight wagon maintenance within the system of maintenance applied by certified entities in charge of maintenance (ECMs).

Two Infrastructure guidance notes have been updated, and two point releases and one new technical note have been published.

GEGN8615 issue 2 - Application of the Accessibility NTSN

The update reflects provides additional guidance where requested. Key changes in the NTSN include clarifying the requirements for platform width in national technical rules and updates to the requirements for wayfinding tactiles.

GIGN7608 issue 3 - Guidance on the Infrastructure National Technical Specification Notice

Guidance on sections no longer in the INF NTSN have been removed, standard references have been updated and some editorial changes have been made.

TN7301 issue 1 – Use of Portable Ramps for Boarding and Alighting at Station Platforms

This technical note provides guidance on the use of portable ramps and background information on the relevant requirements in the Accessibility National Technical Specification Notice (ACC NTSN) and the Railway Interoperability Regulations (RIR).

RIS-7016-INS issue 2.1 - Interface between Station Platforms, Track, Trains and Buffer Stops

The document has been updated to make editorial changes to references and remove some guidance which is no longer relevant following the NTSN update.

GIRT7020 issue 2.1 - GB Requirements for Platform Height, Platform Offset and Platform Width

The document has been updated to make editorial changes to references and remove some guidance which is no longer relevant following the NTSN update.

Two Traffic Operation and Management documents have been updated, and one point release has been published.

RIS-3440-TOM issue 3 - Operation of Heritage Trains

The update provides more guidance on the roles of on-train stewards, including pre-journey briefings and actions during the journey.

GERT8001 issue 88 – Changes to National Operations Publications for December 2025

This document details minor changes to National Operations Publications (NOPs).

RIS-8047-TOM issue 2.1 - Reporting of Safety Related Information

One non-RSSB standards have been published on the RSSB website.