Construction (Design and Management) Regulations 2007

The Construction (Design and Management) Regulations 2007, also known as CDM Regulations or CDM 2007, previously defined legal duties for the safe operation of UK construction sites. They were superseded by the Construction (Design and Management) Regulations 2015. The regulations placed specific duties on clients, designers and contractors, to plan their approach to health and safety. They applied throughout construction projects, from inception to final demolition and removal.

They were introduced by the Health and Safety Executive's Construction Division to:

CDM 2007 was a result of an EU Directive 92/57/EEC (OJ L245, 26.8.92), the 'Construction Sites Directive'. They came into force on April 6, 2007 and replaced a 1994 predecessor as amended in 2000 and 1996 Health and Safety regulations. They were superseded by the Construction (Design and Management) Regulations 2015 with effect from 6 April 2015, with transitional arrangements for existing construction projects to comply with the 2007 regulations until October 2015.

The regulations were divided into 5 parts:

CDM 2007 applied to all construction and covers construction activities such as building, civil engineering, engineering construction work, demolition, site preparation and site clearance.

The HSE's Approved Code of Practice (ACoP) gives practical advice on how to comply with the law. It states that following the advice given complies with CDM regulations. Violation of the health and safety law/code carry legal consequences.

ACoP came into force in April 2007. This edition completely re-wrote the original and revised ACoP's that complied with CDM 1994.

Projects are classified as ‘notifiable’ if they take longer than 30 business days or longer than 500 person days (e.g., 50 people working 10 days on the construction project). Under the CDM regulation, the client appoints a competent Principal Contractor and CDM coordinator, who notifies the Health and Safety Executive (HSE) by using Form 10 (F10). Failure to do so means the client must take the duties of Principal Contractor and CDM coordinator assigned to the parties under CDM 2007.

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