CDM/General/TBT-CDM-002

Worker Duties Under CDM

CDM & Legal FrameworkGeneralWorker Duties Under CDM

Worker Duties Under CDM

Toolbox Talk Record

Ref: TBT-CDM-002  |  Issue: 1  |  Date: March 2026
PresenterProject
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What?

  • The Construction (Design and Management) Regulations 2015 place specific legal duties on every worker on a construction site.
  • A worker is defined as anyone carrying out construction work, whether directly employed, agency, or self-employed.
  • Workers must cooperate with their employer, principal contractor, and other duty holders on health and safety matters.
  • Workers must report any situation they believe represents a serious and imminent danger to themselves or others.
  • Workers must use equipment, substances, and materials in accordance with the training and instructions they have received.
  • Workers must not interfere with or misuse anything provided for health, safety, or welfare on the construction site.
  • Workers must take reasonable care of their own health and safety and that of others affected by their actions.
  • Failure to comply with CDM worker duties is a criminal offence that can result in personal prosecution and fines.
  • Workers must attend inductions, toolbox talks, and safety briefings and follow the information provided.
  • These duties exist alongside employer duties — everyone on site shares responsibility for making construction safe.

Why?

Personal legal dutyCDM 2015 places criminal law duties directly on you as a worker — ignorance is no defence if you breach them.
Shared responsibilitySafety is not just the employer's job — every worker has a personal legal obligation to work safely and cooperate.
Protect yourself and othersYour actions affect colleagues around you — taking care of your own safety also protects the people working alongside you.
Do Don't
  • Cooperate with your employer, principal contractor, and supervisor on all safety matters.
  • Report any dangerous situation, defective equipment, or unsafe condition without delay.
  • Use equipment and substances only in accordance with your training and the instructions given.
  • Follow site rules, method statements, and risk assessments for every task you carry out.
  • Attend all required inductions, toolbox talks, and safety briefings on the project.
  • Take reasonable care of your own health and safety throughout every working shift.
  • Consider how your actions affect others working near you and act responsibly.
  • Wear the PPE provided and use the welfare facilities as intended.
  • Ask for help or clarification if you do not understand how to carry out a task safely.
  • Report all injuries, near misses, and health concerns to your supervisor promptly.
  • DON'T refuse to cooperate with reasonable safety instructions from your supervisor.
  • DON'T fail to report dangerous situations — silence puts yourself and others at risk.
  • DON'T use equipment or substances in ways you have not been trained for.
  • DON'T ignore site rules or deviate from the agreed method statement for the task.
  • DON'T skip inductions or toolbox talks — they communicate essential safety information.
  • DON'T take unnecessary risks — your duty of care extends to yourself and those around you.
  • DON'T carry out work that puts colleagues at risk through careless or reckless behaviour.
  • DON'T misuse, damage, or remove safety equipment, PPE, or welfare provisions.
  • DON'T proceed with a task if you are unsure how to do it safely — ask first.
  • DON'T hide injuries, near misses, or symptoms — reporting them is a legal duty.

See also: CDM 2015 Awareness | Construction Phase Plan Awareness

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