Controller of Site Safety Initial | Amtrain

Controller of Site Safety Initial


This course is designed to train persons who have been nominated by their line manager/sponsor to enable them to attain the Controller of Site Safety (COSS) competence. The COSS competence is required to be held by anyone who is required to set up a safe system of work on or near the line for a group(two or more). A COSS can also carry out the duties of an IWA provided there are no medical restrictions that would prevent this. The COSS course will take delegates through the procedures as set out in the Rule Book; Handbook 6 (General Duties of an IWA), Handbook 7 (General duties of a controller of site safety (COSS), Handbook 8 (IWA,COSS or PC blocking a line), Handbook 9 (IWA or COSS setting up safe systems of work within possessions), Handbook 10 (Duties of the COSS and person in charge of a hand trolley) and Handbook 13 (Duties of the person in charge of the siding). The course includes the importance of using the correct communication protocols and adopting the appropriate behaviours to be able to carry out this role safely and effectively.


Upon successful completion of this course, competencies will be uploaded to Sentinel. Sentinel smart cards are ordered directly from Sentinel at



6 days

Max Candidates


Pre-Requisite Requirements

A current Pre-COSS workbook needs to be completed and the Sponsor must register the completion of the Pre-COSS workbook as an Event Notification with Sentinel. If this is not completed, the candidate will not be eligible to attend the training. NOTE: This workbook must be carried out within 4 weeks of the COSS course date. If the COSS Initial course is not taken within 4 weeks of the date registered on Sentinel, then another workbook must be completed and registered on Sentinel for each subsequent COSS Initial course.
It is the Sponsors responsibility to ensure candidates booked onto the course are eligible for the training they are to receive and in line with any relevant medical level or restriction that may apply, in accordance with NR/L2/OHS/00124 Competence Specific Fitness Medical Requirements.
Please be aware that candidates will be treated on a training event as if they are at work and they must comply with the relevant medical policy and bring their Sentinel Smartcard which will be swiped at the start of the course.
Please note this is a modular course and elements MUST be successfully completed BEFORE continuation with the course, these elements can be failed which will result in the termination of the course event at that time. No monies will be refunded or credited for the course or part thereof due to failing to achieve the required pre-requisite competence(s) to allow overall competence to be awarded
Must be a minimum age of 18 and meets the entry requirements of PTS competence. Please be advised to recertify certain elements of the course, these can only be recertified if it is valid or within the 8 week grace period.
Must bring and hold a valid Sentinel Track Safety Card endorsed with PTS AC/DCCR and meet the requirements of NR/L2/CTM/021 – Competence and Training in Track Safety and not undergoing learning support. (When the employer is satisfied that the individual no longer requires learning support (green square), they shall complete a sponsors confirmation of competence. Learning support shall not exceed 24 months. Where the candidate is unable to fully meet the criteria of competence within the 24 month period they shall be required to attend initial training. The employer shall be able to provide records of workplace experience the individual has completed during the learning support period)
Meet the medical requirements of Network Rail Standard NR/L2/OHS/00124 Competence Specific Fitness Medical Requirements to minimum medical level 4 and Network Rail Standard NR/L1/OHS/051 (Drugs & Alcohol).
Must have sufficient command of English language as detailed in Network Rail Company Specification NR/S/CTM/021 (Competence & Training in Track Safety).
Photo ID – For British Nationals – a current and valid recognised, branded form of identity token, used for accessing the RMI (Railway Maintained Infrastructure) such as a Sentinel Card, full driving licence, passport, biometric ID Card, resident permit as per Home Office guidance or ‘ValIDate’ card. For Non-British Nationals – a current and valid passport is required.
PPE – hard hat, Orange Hi-Visibility clothing to RIS-3279-TOM standard, Safety boots with full ankle and mid-sole protection and gloves.
Relevant Network Rail Rule Book Modules hand books 1,2,3,6,7,8,9,10,13 optional modules AC/DC (if doing OLP/CRP). We recommend that you revise these modules before attending the course.

Further information

Following successful completion of the COSS Initial training, candidates will enter into a 4 month probation period whereby the sponsor is responsible for mentoring them. The mentoring must be logged in the COSS Work Experience Log Book for the candidate to be eligible for further assessment. Within this period, the candidate must have undertaken an Initial COSS Assessment with an approved training provider.

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