Here we can see the basic arrangement of duty holder roles.
The client sits at the heart of the process by making suitable arrangements for managing the project, appointing the right dutyholders where required, allocating sufficient time and resources, and checking that the principal designer and principal contractor carry out their duties.
In practice, the client checks that the principal designer and principal contractor carry out their duties. The principal designer coordinates health and safety in the pre-construction phase, while the principal contractor coordinates the construction phase.
The principal designer works with designers to ensure design risks are managed, while the principal contractor coordinates contractors and workers during the construction phase.
The Principal Designer and Principal Contractor will liaise closely throughout the project.
As their titles suggest, these are the dutyholders with key coordination responsibilities for the pre-construction and construction phases, and must, therefore, coordinate the parts of the project under their control.
Principal designers plan, manage, monitor and coordinate health and safety in the pre-construction phase, including designers’ work.
Principal Contractors must liaise with and supervise Contractors during the construction phase to ensure safe operations. This includes checking that anyone they appoint has the skills, knowledge, experience and, where relevant, organisational capability to carry out their work safely.
However, effective teamwork is not just leaders passing down instructions. Communication and cooperation links go in all directions. For example, Contractors will also liaise with Designers during the construction phase when changes are made during the build. Contractors and Designers must also keep their principals informed of any health and safety issues that arise.