The six month transitional period granted under the Construction (Design and Management) Regulations 2015 came to an end on 6 October 2015. 

The transitional period was provided to Clients (i.e. persons “for whom a project is carried out”) that had appointed a CDM Co-ordinator prior to 6 April 2015.  Such Clients must have appointed an appropriate party to perform the role of Principal Designer from 6 October 2015.  Those Clients that have not appointed a Principal Designer will assume the responsibilities and obligations of the Principal Designer as set out under the 2015 CDM Regulations.

The role of the Principal Designer has replaced and performs different duties to the role of the CDM co-ordinator provided for under the old regulations.