The Railway TPN works closely with its equivalent bodies of the IET's sister engineering organisations of the Institutions of Civil Engineers, Mechanical Engineers, Railway Signal Engineers, Railway Operators, the Railway Civil Engineers Association and the Permanent Way Institution under the auspices of the Railway Engineers Forum (REF).

The aim of the REF is to provide a multidisciplinary forum for railway engineers by promoting collaborative work through the organisations of the constituent member Institutions. The Secretariat and Chair rotates on a two yearly basis; The IET is currently responsible for these roles until June 2007. Information about the activities of the REF can be found  here.

Chairman
Clive Kessell, Centuria Comrail
Contact: ecpkessegrin@aol.com

The Institution of Railway Signal Engineers
Contact: Colin Porter, colin.porter@irse.org

The Institution of Civil Engineers
Contact: Jade Donnovan, jade.donnovan@ice.org.uk

The Institution of Engineering & Technology
Contact: Charlotte Crump, ccrump@theiet.org

The Institution of Mechanical Engineers
Contact: Sian Clayton, railway@imeche.org.uk

Permanent Way Institution
Contact: Brian Newman, bjn@virgin.net

The Institution of Railway Operators
Contact: admin@railwayoperators.org

Railway Civil Engineers Association
Contact: Lizzy Dijeh, lizzy.dijeh@ice.org.uk

The  Parliamentary Advisory Council for Transport Safety (PACTS) is an associate Parliamentary Group. Its objective is "To promote transport safety legislation to protect human life". Its aim is to advise and inform members of the House of Commons and of the House of Lords on air, rail and road safety issues. It brings together safety professionals and legislators to identify research-based solutions to transport safety problems having regard to cost, effectiveness, achievability and acceptability. The IET is a member via the three transport Networks.