Before setting up the site, the principal contractor draws up (or arranges) a construction phase plan setting out health and safety arrangements and site rules, with specific measures for any Schedule 3 high-risk work (burial or falls, harmful substances, ionising radiation, high voltage lines, drowning, wells and tunnels, diving, compressed air, explosives, heavy prefabricated components), assisted by the principal designer's information, and keeps it reviewed and updated throughout the project.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.