CDM co-ordinator

CDM co-ordinator: CDM co-ordinator - Designing Buildings Wiki - Share your construction industry knowledge. The CDM Regulations were substantially revised on 6 April 2015. These revisions saw the role of CDM Co-ordinator transferred to a Principal Designer and Principal Contractor. The Principal Designer (PD) is responsible for the pre-construction phase whilst the Principal Contractor is responsible for the construction phase.