About CDM

CDM refers to the Construction (Design & Management) Regulations 2007.

CDM Regulations apply to all construction work undertaken in the United Kingdom.

Definition of construction from CDM Regulations is:

• the construction, alteration, conversion, fitting out, commissioning, renovation, repair, upkeep, redecoration or other maintenance (including cleaning which involves the use of water or an abrasive at high pressure or the use of corrosive or toxic substances), de-commissioning, demolition or dismantling of a structure;
   
• the preparation for an intended structure, including site clearance, exploration, investigation (but not site survey) and excavation, and the clearance or preparation of the site or structure for the use or occupation at conclusion;
   
• the assembly on site of prefabricated elements to form a structure or the disassembly on site of prefabricated elements which, immediately before such assembly, formed a structure;
   
• the removal of a structure or of any product or waste resulting from demolition or dismantling of a structure or from disassembly of prefabricated elements which immediately before such disassembly formed such a structure;
   
• the installation, commissioning , maintenance, repair or removal of mechanical, electrical, gas, compressed air, hydraulic, telecommunications, computer or similar services which are normally fixed within or to a structure.