CDM (GB) Knowledge Base
A designer is any person or organisation (including a client, contractor or any other person referred to in the Regulations) who:
- 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.
An employer is a designer where a design is prepared by a person under their control.