Duty Holder Explainer

Who does what under CDM 2015 — client, principal designer, principal contractor, designer.

CDM 2015 duties explained: who must do what

CDM 2015 gives duties to six parties. Here is what the client, principal designer, designer, principal contractor, contractor and worker must each do, with the regulation number.

The Principal Designer: The Most Misappointed Role

The Principal Designer is the most misappointed role in CDM 2015. Either it is not appointed at all. Or it is appointed too late. Or it is appointed to someone without the skills and influence to perform it effectively.

The Client: The Most Misunderstood Duty Holder

Under CDM 2015, the client is not a passive commissioner. They are a duty holder. That distinction matters. It means the client cannot simply hand the project to a contractor and step back.