New CDM Regulations Imminent

New CDM Regulations Imminent

  • Date: Monday 26th January 2015

The new Construction (Design and Management) Regulations 2015 come into force on 6 April 2015 and apply to all building and construction projects regardless of the size, duration and nature of the work.


The main changes will be:

  • replacement of CDM Coordinator  by Principal Designer
  • strengthening of Client duties
  • splitting Duty Holder 'competence' into its component parts of skills, knowledge, training and experience
  • inclusion of domestic projects
  • threshold notification changes to: 30 days and 20 persons on site at any one time; over 500 person days
  • new guidance documents

Industry guidance

Draft guidance has been produced for the five CDM duty holders (Clients, Principal Contractors, Contractors, Designers and Principal Designers) and an additional one for workers . These set out in practical terms what actions are required of them. The draft documents can be now be downloaded from the CITB website ( for familiarization.

Transitional Period

There will be a transitional period that will run from 6 April 2015 to 6 October 2015. For projects starting before 6 April 2015, where the construction phase has not yet started and the client has not yet appointed a CDM Coordinator, the client must appoint a Principal Designer as soon as it is practicable.

If the CDM Coordinator has already been appointed, a Principal Designer must be appointed to replace the CDM Coordinator by 6 October 2015, unless the project comes to an end before then.


The existing Regulations and industry guidance will be available until October 2015. For more information on the proposed changes please contact our office on 01752 201616.


Source: Dr Michael Cash and CITB

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