CDM 2015 Explained: What Contractors Need to Know in 2026 | DNA Compliance

CDM 2015: What Contractors Need to Know in 2026

The Construction (Design and Management) Regulations 2015 apply to every construction project in the UK. But many contractors still struggle with what’s required of them in practice.

Explained here is a practical guide to CDM 2015 for contractors. Understand your duties, common issues, and how DNA Compliance supports CDM documentation, RAMS and Principal Designer requirements.

Key Duties Under CDM 2015

The key points from the CDM regulations are to plan, manage and monitor work safely, ensure workers have the correct skills and training, and manage site risks alongside producing welfare arrangements. Construction projects also require suitable RAMS to allow them to coordinate with the Principal Designer and Principal Contractor.

Common Issues We See on Sites

A lot of nonconformity is seen across sites, most commonly including a lack of evidence for training and competence, incomplete inductions, weak site welfare arrangements, and missing or generic RAMS.

How DNA Compliance Helps

We support contractors across Oxfordshire and the wider UK with CDM documentation, Principal Designer duties, CPPs, RAMS, COSHH and site audits to prevent any nonconformities.