Under CDM 2015 a construction project must be notified where it either exceeds 500 worker days or 30 days plus has more than 20 workers on site simultaneously. Regulation 6 clearly states that '(3)The notice must - (a) contain the particulars specified in Schedule 1;'. Schedule 1 in turn clearly states that the particulars to be notified as including the contact details of the Principal Designer and the Principal Contractor.

It is possible however for a project that only involves one contractor - whereby there is no legal requirement under Regulation 5 to appoint a PD and PC - to never-the-less be notifiable. Under these circumstances how is the Client to comply with Regulation 6 and Schedule 1?

As a linked question - can anyone confirm/ refute my assumption that a contracting company counts as a single contractor in CDM terms irrespective of how many employees they have undertaking 'construction work' on the project. The definition of a 'Contractor' in the Regulations is open to interpretation - 'any person ... who, in the course or furtherance of a business, carries out manages or controls construction work'. This could be interpreted as meaning each construction worker is a 'Contractor' in their own right irrespective of whether they share an employer because they are carrying out construction work in the course or furtherance of a business.

I agree is seems inconceivable that a Notifiable project would not have other trades and contractors working on it at some point, hence the requirement of PC and PD kicking in.

In section 2 of CDM 2015 there is a definition of a contractor and I understand this applies to any individual or company who are engaged by the main contractor or PC. It cannot apply as a definition to an individual employee who is albeit sometimes referred to as a contractor - common sense prevails.

Indeed Bob, but would they not work under the PC and their CPP anyway?

Should have said he was employed direct to the client and this was the only work done