• Prepare the construction phase plan before the construction phase begins.
• Appoint competent contractors and verify their health and safety competence.
• Ensure every worker receives a site-specific induction before starting work.
• Coordinate all contractor activities to prevent dangerous overlaps and conflicts.
• Establish and enforce site rules covering access, PPE, and reporting procedures.
• Provide welfare facilities that meet CDM 2015 Schedule 2 standards throughout.
• Consult with workers on health and safety matters that affect their activities.
• Monitor contractor compliance with site rules through observations and audits.
• Manage the construction phase plan as a living document, updating it as work progresses.
• Maintain the site in a condition that protects the health and safety of every person.

• DON'T begin construction without the construction phase plan prepared and in place.
• DON'T appoint contractors without checking their health and safety competence.
• DON'T allow workers on site before they have completed the site-specific induction.
• DON'T let contractors work in the same area without coordinating their activities.
• DON'T fail to establish clear site rules — ambiguity creates confusion and danger.
• DON'T let welfare standards fall below the CDM 2015 Schedule 2 requirements.
• DON'T make safety decisions without consulting the workers they affect.
• DON'T assume contractors are complying — monitor and verify through regular audits.
• DON'T let the construction phase plan become outdated — update it as the project changes.
• DON'T tolerate unsafe conditions — the principal contractor is legally responsible for all.

See also: CDM 2015 Awareness | Construction Phase Plan Awareness