PQMS Rail Courses

Controller of Site Safety (COSS) Initial

Course Name

Controller of Site Safety (COSS) Initial


This course is intended for candidates who wish to set up a safe system of work on Network Rail’s infrastructure and act as a Controller of Site Safety. It also covers Personal Track Safety re-certification. Post mentoring and Interim Assessments are required mid term, prior to re-certification every two years which consists of a five day classroom based course and assessment.

Training Locations

Bedworth, Bury - Please see Scheduled Dates below for more information

Course Aims

Upon successful completion of the course candidates will be able to:

• Set up a safe system of work for groups working on the railway
• Act as a Controller Of Site Safety on Network Rail’s infrastructure in accordance with industry standards

Course Content

Welcome & Introduction
• Personal Track Safety re-certification (AC and DCCR)
• Introduction of COSS duties
• Planning safe systems of work
• Choosing the Right Line Blockage
• Blocking the Line
• Communicating Clearly
• Blocking the Line using a T12
• Blocking the Line using a T2
• Safe systems of Work in Green Zones
• Green Zone Scenario exercise
• Safe system of Work in Red Zones
• Red Zone Scenario exercise
• How to give an Effective Safety Briefing
• Working within a Possession
• Checking Qualifications
• COSS working alone
• Additional duties
• Rail Incident Officer – An Overview
• Theory, Practical and Verbal assessments
• Duties of a COSS in relation to electrical power supply when isolations are required
• OLP/CRP (Optional)
• Feedback and Post Course Objectives


PQMS Limited will upload the relevant competence outcome(s) and result(s) to the Sentinel system.


6 Days


• Must be literate in English
• Must be a minimum of 18 years of age.
• Must hold a current Sentinel Track Safety Certificate endorsed with PTS (not under learning support) & full IWA or COSS.
• Must meet the relevant requirements of Network Rail Standard NR/L2/OHS/00124 medical fitness.
• Must meet the requirements of Network Rail Standard NR/L1/OHS/051 Drugs and Alcohol.
• Must bring Photographic I.D.


All prices are plus VAT

Card Cost

All prices are plus VAT where applicable

Scheduled Dates

This course is currently run an demand. Please contact us for futher detail