Coss Assessment

Please contact us for details of price and availability

1 day course

Course Description

The Assessor shall observe the COSS implementing a Safe System of Work in a real environment. The assessor must not form the group. The assessor shall ask questions to check knowledge and all documentation shall be checked.

Who its for

The COSS Assessment is for any individual who requires a Post Mentorship Assessment or an Interim Assessment Assessment.


Valid PTS

A post mentorship assessment is required within the first 4 months of passing the COSS initial course.

An Interim competence assessment is required between 9-15 months following the first 24 months of competence.

The candidate must have at least four entries in their work experience book prior to the post mentorship/interim assessment. For post mentorship assessments a mentor must be made available.

Changes have been mandated by Network Rail from 5th September to prevent manufactured COSS assessments, DOTTS shall only undertake COSS assessments that comply with the Network Rail and NSAR rules.

Course Length

1 day

COSS Assessments can be carried out during day shift or night shift working

Alternatively, for more information or to register your interest for future courses, please complete the form below. 

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Ashleigh Murtagh

Very good informative training with Chris who is very knowledgable and professional – made the whole experience easy and enjoyable. Would highly recommend.

CPCS 360 Training – Expert – 1 day


Harry Betteridge

I have just completed my training and now with Chris doing my NVQ. Yet again very professional and well explained training. Its not my first course/training with Chris and certainly wont be my last.


Jay Turner

Great Training, clear and easy to understand. Really good training facility will use for future training and recommend.

CPCS ADT Training – Expert – 1 day