Guide · Training and competence

Training, induction and supervision: what does the law expect?

Sources checked 4 minute readSources: Health and Safety Executive and legislation.gov.uk

In short

Employers must provide the information, instruction, training and supervision needed to keep workers safe, under section 2 of the Health and Safety at Work etc. Act 1974. Train people when they start and again when their job, equipment or way of working changes. On construction sites, every worker needs a suitable site induction under CDM 2015. Young, new and inexperienced workers need closer supervision.

Example

a first week on site

Lewis runs a small groundworks firm and took on Jordan, 17, as a labourer. Before Jordan started, Lewis reviewed his risk assessment and kept him away from work near the excavator for now. On day one the principal contractor gave the site induction, and Lewis followed it with a briefing on the team's tasks and who to ask for help. For the first month Jordan worked alongside Mo, an experienced groundworker. Every Monday the team had a short toolbox talk, with a record of who attended.

An illustrative example, not a real case.

What the law says

  • Health and Safety at Work etc. Act 1974, section 2(2)(c): employers must provide the information, instruction, training and supervision needed to ensure, so far as is reasonably practicable, the health and safety of their employees.
  • Management of Health and Safety at Work Regulations 1999, regulation 13: employers must take account of people's capabilities, and train them when they are recruited and when they face new or increased risks. Training must take place in working hours.
  • The same Regulations, regulations 3 and 19: before employing anyone under 18, employers must assess the risks to young people, and protect them from risks that come from inexperience, lack of awareness or immaturity.
  • CDM 2015, regulations 13 and 15: the principal contractor must make sure a suitable site induction is provided. Contractors must provide one where the principal contractor has not, and give workers appropriate supervision, instructions and information.

What a good site induction covers

HSE guidance (L153) says inductions should be site specific and consider:

  • Senior management commitment to health and safety.
  • The project and how it is managed.
  • The particular risks on this site and how they are controlled.
  • First aid arrangements, and how to report accidents and incidents.
  • Ongoing briefings such as toolbox talks, and how workers are consulted.
  • Each worker's own responsibility for health and safety.

Supervision and toolbox talks

  • Match supervision to the risk and the person. HSE says young, inexperienced and newly trained workers, and anyone starting a new activity, need closer supervision.
  • Make sure workers always know how to get help from a supervisor, even when one is not on site.
  • Give people promoted to supervisor recognised site supervisor training that covers leadership and communication, such as CITB's Site Supervision Safety Training Scheme (SSSTS).
  • Use short toolbox talks to brief the work ahead, ask questions and get feedback, and record who attended.

Keep simple records

  • Who was trained, in what, when and by whom.
  • Inductions and toolbox talks, and who attended.
  • Cards and certificates, with expiry and refresher dates.

Note: HSE says training records help you decide when refresher training is needed.

What the courts have said

  • R v Swan Hunter Shipbuilders Ltd [1981] ICR 831

    The Court of Appeal upheld a shipbuilder's conviction for failing to warn a subcontractor's workers about a fire risk. On a shared site, the information and instruction that keep people safe may need to reach other firms' workers too.

Common questions

Is health and safety training a legal requirement?

Yes. Employers must provide the training needed to keep people safe (section 2 of the Health and Safety at Work etc. Act 1974), including when people start and when their work changes. In a low-risk office, HSE says simple information and instructions are likely to be enough.

Can an employer charge staff for health and safety training?

No. Section 9 of the Health and Safety at Work etc. Act 1974 stops employers charging employees for anything the law specifically requires them to provide, and regulation 13 of the Management Regulations says training must take place in working hours.

Can a 16 year old work on a construction site?

Yes, once they have reached the minimum school leaving age, which HSE says pupils reach in the school year they turn 16. Before that, HSE says they cannot be employed on construction sites except on work experience. You must assess the risks to them before they start and protect them from risks they may not recognise (regulations 3 and 19 of the Management Regulations).

How often should we hold toolbox talks?

No law sets a frequency. Hold them when the work, the risks or the team change, and often enough that everyone stays briefed.

How NXT-HSE can help

NXT-HSE can help you plan inductions and toolbox talks, check training records and look at how supervision works on site. Your legal duties stay with your business.

Sources

Sources checked 27 September 2026 against current Health and Safety Executive guidance and legislation. This guide is general information, not legal advice; your legal duties stay with your business.

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