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Temporary Works Supervisor Training Course (TWSTC)

This one-day Temporary works supervisor training course (TWSTC) is designed to help those on site who have responsibility for supervising all forms of temporary works. The course seeks to improve the knowledge of this role and the temporary works environment.

Important notes

  • The main aim of this course is to focus on the processes involved in temporary works, commonly with particular attention on the role of the TWS.
  • These courses are not temporary works technical awareness courses, although there are elements of technical awareness that are signposted throughout and that must be included in the course exercises.
  • Attendance does not confer competency as a TWS; this comes from a mixture of education, training and experience, and should be judged by an appropriate senior individual, usually referred to as the designated individual (DI).
  • Training is considered an essential element of TWS competence.


The development of this course was supported by several organisations, including the Temporary Works forum and the Health and Safety Executive.

Temporary works are safety- and business-critical and require careful co-ordination. An accepted way of achieving this is through the adoption of the management process outlined in BS 5975:2019, which introduces the temporary works supervisor (TWS) as a key figure. This course explains the role and its overall management context.

Temporary works on both smaller and larger sites can be high risk activities. Therefore, understanding the essentials of good risk and safety management, as outlined in BS 5975:2019, is relevant for projects of all sizes.

The course gives emphasis throughout to the importance of communication, co-ordination, co-operation and competency (the 4Cs), risk management, safety and business relations, allowing the TWS to:

  • understand the need for and duties of a TWS
  • understand the role of others
  • have a detailed knowledge and understanding of BS 5975 in respect of this role.

Certification for these courses are valid for 5 years. To remain certified in this area, you will need to retake the course before the expiry date.

Find out more about becoming approved to deliver this course

Further information about this course is available in the Scheme Rules

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