Controller of Site Safety (COSS)

This course is for those who will carry out the duties of a Controller of Site Safety (COSS), set up Safe Systems of Work for a group whilst on or near the line.

Learning Objectives

At the end of this course delegates will be able to:

  • Know the roles and responsibilities of a COSS.
  • Be able to check the competencies via Sentinel.
  • Demonstrate a good COSS briefing.
  • Access information about the site.
  • Demonstrate the Safe System of Work planning process.
  • Correctly appoint Lookouts/Site Wardens.
  • Demonstrate use of the sighting distance chart and how this can be attained.
  • Understand and demonstrate a good level of both written and verbal communications.
  • Demonstrate the ability to take and hand back line blockages.
  • State the process when working within a possession.
  • Understand and state the process for working in a sidings.
  • How to manage an incident and the role of the RIO.
  • Understand the LCV process

What do you need to attend this course?

  • Must hold the required medical level.
  • PTS must be held and is renewed as part of the course so the minimum log book requirement must be met.
  • Have a good level of literacy.


6 days (OLP/CRP is an additional day)

What happens after I pass the course?

Your track safety card will be updated to include both the PTS recertification and (Probationary) COSS. You must complete the mentoring requirements and pass a workplace assessment within 4 months. You must be accompanied at all times by a full COSS holder until this is completed. An interim assessment (between 9 and 15 months after the post mentoring assessment) must also be completed.

Choose your dates

Monday 20th January 2020
Limited Places
Monday 30th March 2020
Places Available

None of the above dates suitable? No problem. We can arrange courses on request. Please call us on 01925 813897 or complete our Course Request form.


  • All our training includes lunch.
  • All equipment is provided, no need for laptops
  • Free tea, coffee and refreshments supplied
  • Free WIFI available for all delegates
  • Multi Faith prayer room
  • Accessible toilet

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Complete list of all our courses in alphabetical order