Last edited 04 Dec 2020

CDM 2007 designers

For information about the role of designers under the 2015 CDM regulations see CDM 2015 designers.

The text below relates to the superseded 2007 CDM regulations and is provided as a historical reference.

The Construction (Design and Management) Regulations (CDM Regulations) are intended to ensure health and safety issues are properly considered during a project’s development so the risk of harm to those who have to build, use and maintain structures is reduced.

They were introduced in 1994 and came into force on 31 March 1995. They were substantially revised in 2007.

The regulations impose duties on:

The regulations define a designer as ‘…any person (including a client, contractor or other person referred to in these Regulations) who in the course or furtherance of a business:

  • prepares or modifies a design; or
  • arranges for or instructs any person under his control to do so,

relating to a structure or to a product or mechanical or electrical system intended for a particular structure, and a person is deemed to prepare a design where a design is prepared by a person under his control.'

Where ‘design’ includes ‘…drawings, design details, specification and bill of quantities (including specification of articles or substances) relating to a structure, and calculations prepared for the purpose of a design’.

The duties of designers include:

Where projects are notifiable under the regulations (projects which last more than 30 days or involve more than 500 person-days of construction work), the additional duties of designers include:

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