Health and Safety at Work Act 1974 — Plain English Guide

The Health and Safety at Work etc. Act 1974 (HASAWA 1974) is the primary piece of legislation covering occupational health and safety in Great Britain. It applies to all employers, self-employed persons and employees in every workplace across every sector. Every modern health and safety regulation — from risk assessment requirements to CDM 2015 — flows from this Act. If you employ anyone, run a business, or work for yourself, HASAWA 1974 applies to you.

Passed in 1974 following the Robens Report, the Act replaced a fragmented system of industry-specific regulations with a single, unified framework. It introduced the concept of goal-setting legislation — imposing general duties on employers rather than prescriptive rules — and established the Health and Safety Executive (HSE) as the enforcement body. Nearly 50 years later, it remains the foundation of UK workplace safety law.

What the Health and Safety at Work Act 1974 Requires

The core duty is set out in Section 2(1): every employer must ensure, so far as is reasonably practicable, the health, safety and welfare at work of all their employees. The phrase "so far as is reasonably practicable" is critical — it means employers must balance the level of risk against the cost, time and effort required to control it. If the risk is significant and the control measures are affordable and feasible, they must be implemented. The test is what a reasonable and prudent employer would do given the degree of risk. The burden of proof lies with the employer.

Section 2(2) breaks this general duty into specific requirements. Employers must provide and maintain: safe plant and systems of work (machinery, equipment, work procedures); safe use, handling, storage and transport of articles and substances; adequate information, instruction, training and supervision; a safe place of work with safe means of access and egress; and a safe working environment with adequate welfare facilities.

Section 2(3) requires every employer with five or more employees to prepare a written health and safety policy. The policy must state the general approach to health and safety, the organisation (who is responsible for what), and the arrangements (what you do in practice). It must be brought to the notice of all employees and revised as often as appropriate. Employers with fewer than five employees are not required to have a written policy, but the Section 2(1) duties still apply in full.

Section 3 extends the duty to non-employees. Every employer must conduct their undertaking in such a way as to ensure, so far as is reasonably practicable, that persons not in their employment (contractors, visitors, members of the public) who may be affected are not exposed to risks to their health or safety. Section 3(2) imposes an equivalent duty on the self-employed.

Section 7 places duties on employees. Every employee at work must take reasonable care for their own health and safety and that of others who may be affected by their acts or omissions, and must cooperate with the employer in meeting statutory obligations. Employees who deliberately or recklessly interfere with or misuse anything provided in the interests of health, safety or welfare commit an offence under Section 8.

Who the Health and Safety at Work Act 1974 Applies To

HASAWA 1974 applies to:

• All employers — regardless of size, sector, turnover or number of employees. A sole trader employing one person part-time has the same Section 2 duties as a multinational corporation.
• Self-employed persons — under Section 3(2), anyone working for themselves must ensure they do not expose themselves or others to risks to health and safety.
• Employees — Section 7 requires employees to take reasonable care and cooperate with their employer on health and safety matters.
• Designers, manufacturers and suppliers — Section 6 places duties on those who design, manufacture, import or supply articles or substances for use at work. They must ensure the article is safe when properly used, provide adequate information, and carry out testing and examination.
• Persons in control of premises — Section 4 places duties on those who control non-domestic premises to ensure, so far as is reasonably practicable, that the premises, access, egress, and any plant or substances are safe and without risks to health.

The Act applies throughout Great Britain (England, Scotland and Wales). Northern Ireland has separate but equivalent legislation. There are very limited exceptions — domestic employment in a private household is excluded, and certain provisions relating to offshore installations have been superseded by more recent regulations.

Key Duties at a Glance

• Section 2(1): Ensure, so far as is reasonably practicable, the health, safety and welfare at work of all employees.
• Section 2(2)(a): Provide and maintain safe plant and systems of work.
• Section 2(2)(b): Ensure safe use, handling, storage and transport of articles and substances.
• Section 2(2)(c): Provide information, instruction, training and supervision as necessary to ensure health and safety.
• Section 2(2)(d): Maintain any place of work under the employer's control in a safe condition with safe access and egress.
• Section 2(2)(e): Provide and maintain a safe working environment with adequate welfare facilities.
• Section 2(3): Prepare and revise a written health and safety policy (employers with five or more employees).
• Section 3(1): Conduct your undertaking to ensure persons not in your employment are not exposed to risks.
• Section 7: Employees must take reasonable care for their own health and safety and that of others, and cooperate with the employer.

Penalties for Non-Compliance

Breaches of HASAWA 1974 are criminal offences. Section 33 sets out the offences and penalties. In the magistrates' court, the maximum fine for most offences is £20,000 per offence. For offences under Section 33(1)(a), (c) or (o) — which include failing to discharge a duty under Sections 2 to 6 — the magistrates' court can impose an unlimited fine. In the Crown Court, fines are unlimited for all offences. Custodial sentences of up to two years can be imposed for certain serious offences, including breaches of improvement or prohibition notices.

Between April 2023 and March 2024, the HSE and local authorities secured 441 prosecutions in Great Britain. In Crown Court cases, the average fine was £122,133. The highest fine imposed in a single case in 2023/24 was £1.5 million. These figures reflect the Sentencing Council's 2016 guidelines, which base fines on turnover and culpability — large organisations can face penalties in the millions.

In 2023/24, there were 138 fatal injuries to workers in Great Britain, according to HSE statistics. Construction accounted for the highest number (45 deaths), followed by agriculture (21 deaths). The fatal injury rate across all industries was 0.40 per 100,000 workers — the joint-lowest rate on record alongside 2022/23, but still representing 138 families bereaved. The HSE continues to emphasise that every death is preventable.

Beyond prosecution, the HSE operates a Fee for Intervention (FFI) scheme under the Health and Safety (Fees) Regulations 2012. If an inspector identifies a material breach of health and safety law, they can charge £163 per hour (2024/25 rate) for time spent investigating and taking enforcement action. A single inspection visit can result in FFI costs of several hundred or several thousand pounds, even where no prosecution follows.

How the Health and Safety at Work Act 1974 Relates to Risk Assessments

HASAWA 1974 is enabling legislation — it grants the Secretary of State power to make regulations for specific purposes set out in Schedule 3. One such regulation is the Management of Health and Safety at Work Regulations 1999 (MHSWR 1999), which is made under Section 15 of the Act.

Regulation 3(1) of MHSWR 1999 requires every employer to make a suitable and sufficient assessment of the risks to the health and safety of employees and others who may be affected by the undertaking, for the purpose of identifying the measures needed to comply with health and safety law. This is the legal requirement for a written risk assessment. The risk assessment is the practical tool that enables employers to discharge their Section 2(1) duty to ensure health and safety so far as is reasonably practicable.

HASAWA 1974 sets the overarching duty; MHSWR 1999 makes the risk assessment process mandatory; and sector-specific regulations — COSHH, Manual Handling, Work at Height, Fire Safety — specify additional requirements. All of these regulations derive their legal force from HASAWA 1974. Remove the Act and the entire regulatory framework collapses.

The Health and Safety at Work Act 1974 and Early Years Settings

HASAWA 1974 applies to early years settings just as it does to any other employer. Nurseries, pre-schools, childminders and schools must ensure, so far as is reasonably practicable, the health, safety and welfare of their staff under Section 2(1). Section 3(1) extends this duty to children and parents — the employer must conduct the undertaking (the nursery or childcare service) in such a way that non-employees are not exposed to risks.

For early years providers registered with Ofsted, this interacts with the Statutory Framework for the Early Years Foundation Stage (EYFS). Paragraph 3.64 of the EYFS requires providers to ensure that their premises, including outdoor spaces, are fit for purpose and comply with health and safety legislation, including the Health and Safety at Work etc. Act 1974. The EYFS also requires a risk assessment for each type of outing. These assessments must be compliant with MHSWR 1999, which is made under HASAWA 1974.

In practice, an early years setting must have: a written health and safety policy (if employing five or more staff); written risk assessments covering the premises, activities, outings and any specific hazards; arrangements for fire safety, first aid, food hygiene, and safeguarding; and records of staff training and supervision. Anyrisks generates EYFS-compliant risk assessments covering all of these areas in under 2 minutes.

The Health and Safety at Work Act 1974 and Small Businesses

Many small business owners assume that health and safety law is something for large companies with dedicated safety officers. This is a dangerous misconception. HASAWA 1974 applies to all employers regardless of size. A one-person limited company that employs a single part-time cleaner is subject to the full Section 2 duties. A self-employed electrician working alone on a domestic job is subject to Section 3(2).

The phrase "so far as is reasonably practicable" is sometimes misunderstood as a loophole. It is not. It is a legal test that balances risk against cost — but where the risk is significant and the control measures are affordable, the duty is absolute. If you run a small café and your chef is using a deep fat fryer without a thermostat and adequate supervision, you cannot argue it was not reasonably practicable to provide safe equipment. The cost is modest; the risk of serious burns is high; the duty is clear.

Small businesses are prosecuted regularly. HSE prosecution data shows that sole traders, partnerships and micro-businesses with fewer than 10 employees account for a significant proportion of enforcement cases. The magistrates' court fine may be lower than for a large company, but a £5,000 penalty and legal costs can still put a small business under.

How the Health and Safety at Work Act 1974 Is Enforced

The Act established the Health and Safety Executive (HSE) as the national regulator for workplace health and safety. The HSE enforces HASAWA 1974 and regulations made under it in most workplaces — factories, construction sites, farms, warehouses, offshore installations. Local authorities enforce in lower-risk premises such as offices, shops, restaurants and hotels under the Health and Safety (Enforcing Authority) Regulations 1998.

Inspectors have extensive powers under Section 20 of the Act. They can enter premises at any reasonable time (or at any time if they believe there is a dangerous situation); examine and investigate; take measurements, photographs and samples; require the production of documents; take statements; and seize and render harmless any article or substance. Obstructing an inspector is a criminal offence under Section 33(1)(h).

Where inspectors find breaches, they can issue improvement notices (requiring specific action within a stated time) or prohibition notices (stopping work immediately if there is a risk of serious personal injury). Failure to comply with a notice is a criminal offence. Inspectors can also prosecute directly, or refer cases to the Crown Prosecution Service for more serious offences. Since April 2012, inspectors can also recover costs under the FFI scheme.

What Compliance Looks Like in Practice

For a typical small to medium-sized business, compliance with HASAWA 1974 means:

• A written health and safety policy (if employing five or more people), naming the person with overall responsibility and setting out how health and safety is managed day-to-day.
• Written risk assessments under MHSWR 1999 for all significant hazards — manual handling, slips and trips, use of machinery, lone working, fire, hazardous substances, work at height, etc.
• Competent health and safety advice — either in-house or from an external consultant. Regulation 7 of MHSWR 1999 requires every employer to appoint one or more competent persons to assist in undertaking the measures needed to comply with health and safety law.
• Adequate information, instruction and training for all employees — induction for new starters, refresher training as appropriate, task-specific training for high-risk activities.
• Consultation with employees — either directly or through elected safety representatives. Section 2(6) of HASAWA 1974 requires employers to consult employees or their representatives on health and safety matters.
• Adequate first aid provision, fire precautions, welfare facilities (toilets, washing facilities, drinking water, rest areas).
• Arrangements for reporting accidents, dangerous occurrences and occupational diseases under the Reporting of Injuries, Diseases and Dangerous Occurrences Regulations 2013 (RIDDOR).
• Employers' liability insurance with a minimum cover of £5 million, as required by the Employers' Liability (Compulsory Insurance) Act 1969. The certificate must be displayed or made available to employees.

None of this requires a large bureaucracy or a dedicated safety officer. For a small business, it can be managed by the owner or director with the help of a template health and safety policy, a competent risk assessment tool, and regular common-sense checks. What it does require is that health and safety is taken seriously and that the legal duties are understood and acted upon.

Common Misconceptions About HASAWA 1974

"Health and safety law is just red tape." The Act was passed in response to over 1,000 workplace deaths per year in the early 1970s. Fatal injury rates have fallen by more than 85% since then. HASAWA 1974 saves lives. Dismissing it as red tape is both factually wrong and morally indefensible.

"I'm too small to be inspected." HSE and local authority inspectors target risk, not size. Small businesses are inspected regularly, particularly in high-risk sectors such as construction, agriculture and food manufacturing. Inspectors also investigate complaints and accidents — if you have a serious incident, you will be inspected regardless of your size.

"I'm self-employed so the law doesn't apply to me." Section 3(2) of HASAWA 1974 expressly applies to self-employed persons. You must ensure you do not expose yourself or others to risks. You are also required to carry out risk assessments under MHSWR 1999 (with limited exceptions for very low-risk work).

"My insurance covers me so I don't need to worry." Employers' liability insurance is a legal requirement, but it does not discharge your statutory duties. If you are prosecuted for a breach of HASAWA 1974, your insurer will not pay the fine or legal costs. Insurance covers civil claims for compensation — it does not protect you from criminal prosecution.

The Health and Safety at Work Act 1974 and COVID-19

During the COVID-19 pandemic, the HSE confirmed that HASAWA 1974 required employers to protect workers from the risk of COVID-19 infection in the workplace. Employers were required to carry out a specific COVID-19 risk assessment under Regulation 3 of MHSWR 1999 (made under HASAWA 1974) and implement control measures in line with government guidance — ventilation, social distancing, PPE, testing, and in some cases working from home.

The HSE carried out thousands of spot checks during 2020 and 2021, issuing enforcement notices where employers failed to manage the risk adequately. This was a practical demonstration that the Section 2(1) duty — to ensure health and safety so far as is reasonably practicable — is not static. It applies to new and emerging risks, including biological hazards such as infectious disease.

The Future of the Health and Safety at Work Act 1974

HASAWA 1974 has remained largely unchanged for nearly 50 years. Post-Brexit, the UK government has retained the Act and all regulations made under it. There is no current proposal to repeal or fundamentally reform it. The goal-setting approach — imposing general duties rather than prescriptive rules — has proven flexible and durable. It has accommodated major changes in working practices (the shift to service industries, the growth of self-employment, the rise of the gig economy, remote working) without the need for constant legislative amendment.

The HSE's strategy for 2022 to 2032 emphasises preventing work-related death, injury and ill health, focusing on the highest-risk sectors and activities. Construction, agriculture, waste and logistics remain priority areas. The HSE continues to emphasise that the best regulation is self-regulation — that businesses which understand their risks and manage them effectively are safer, more productive and more profitable.

HASAWA 1974 is not going anywhere. If you employ people, run a business or work for yourself, the duties it imposes are here to stay. Understanding those duties and acting on them is not optional — it is the law.