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 every employer, every self-employed person, and every employee across all sectors. If you run a business, employ anyone, or work for yourself in the UK, this Act sets out your legal duties.

Every other health and safety regulation — from the Management of Health and Safety at Work Regulations 1999 to the Construction (Design and Management) Regulations 2015 — derives its authority from this Act. Understanding HASAWA 1974 is essential because it is the foundation on which all UK workplace safety law is built.

What the Health and Safety at Work Act 1974 Requires

The Act is structured around the concept of duties — specific legal obligations placed on different parties. The core principle is that those who create risk have a responsibility to manage it "so far as is reasonably practicable". This phrase appears throughout the Act and defines the standard of care required.

Section 2 sets out the general duties of employers to their employees. Section 2(1) states: "It shall be the duty of every employer to ensure, so far as is reasonably practicable, the health, safety and welfare at work of all his employees." This is not a vague aspiration — it is a criminal duty enforceable by prosecution.

Section 2(2) expands this general duty into specific matters, including: the provision and maintenance of plant and systems of work that are safe and without risks to health; arrangements for ensuring safety in the use, handling, storage and transport of articles and substances; the provision of information, instruction, training and supervision; the maintenance of a safe place of work with safe access and egress; and the provision of a safe working environment and adequate welfare facilities.

Section 3 extends duties beyond employees. Employers and self-employed persons must conduct their undertaking in such a way as to ensure, so far as is reasonably practicable, that persons not in their employment — such as contractors, visitors or members of the public — are not exposed to risks to their health or safety. Section 3(2) specifically addresses self-employed persons, requiring them to protect both themselves and others affected by their work.

Section 4 places duties on those in control of non-domestic premises to ensure, so far as is reasonably practicable, that the premises, access routes and plant or substances on the premises are safe for anyone using them. This applies to landlords, property managers, facilities teams and shared workspace operators.

Section 7 imposes duties on employees. Every employee 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 their employer to enable compliance with legal duties. Section 8 prohibits any person from intentionally or recklessly interfering with or misusing anything provided in the interests of health, safety or welfare.

Who the Health and Safety at Work Act 1974 Applies To

HASAWA 1974 applies to:

• All employers — limited companies, sole traders employing staff, partnerships, charities, public sector organisations, schools, care homes, hospitals. The size of the organisation is irrelevant. A sole trader employing one part-time assistant has the same core duties under Section 2 as a FTSE 100 company.
• Self-employed persons — freelancers, contractors, consultants, tradespeople. Section 3(2) applies. If you carry out work that could affect the health and safety of others, you are subject to HASAWA duties.
• Employees — anyone working under a contract of employment or apprenticeship. Section 7 duties apply, meaning employees can be prosecuted (though this is very rare in practice).
• Controllers of premises — landlords, facilities managers, property owners. Section 4 applies where non-domestic premises are made available for use by others.
• Designers, manufacturers, importers and suppliers — Section 6 places duties on those who design, manufacture, import or supply articles or substances for use at work to ensure, so far as is reasonably practicable, that the article or substance is safe when properly used.

The Act applies in England, Scotland and Wales. Northern Ireland has separate but equivalent legislation (the Health and Safety at Work (Northern Ireland) Order 1978).

Key Duties at a Glance

Here are the main duties under HASAWA 1974 in practical terms:

• Section 2(1): Ensure the health, safety and welfare of employees so far as is reasonably practicable — this is the overarching employer duty.
• Section 2(3): Prepare and revise a written health and safety policy if you employ 5 or more people. The policy must state your general policy on health and safety, the organisation and arrangements for carrying it out, and be brought to the attention of employees.
• Section 2(4)-(7): Consult with employees or their representatives on health and safety matters. Where recognised trade unions exist, employers must consult with appointed safety representatives under the Safety Representatives and Safety Committees Regulations 1977.
• Section 3(1): Conduct your business so that persons not in your employment are not exposed to risks. This includes contractors, visitors, and the public. For example, if you run a shop, Section 3 requires you to ensure customer safety.
• Section 3(2): If you are self-employed, conduct your work so that you and others are not exposed to risk. This means carrying out risk assessments and implementing control measures even if you work alone.
• Section 4: If you control non-domestic premises, ensure the premises, access routes and any plant or substances are safe for those using them.
• Section 7(a): As an employee, take reasonable care for your own health and safety and that of others affected by your work.
• Section 7(b): Cooperate with your employer to enable them to comply with legal duties — for example, by attending training, using PPE correctly, and following safe systems of work.

Every one of these duties is legally binding. Breach of duty under HASAWA 1974 is a criminal offence, not a civil matter.

Penalties for Non-Compliance

The Health and Safety at Work Act 1974 is enforced by the Health and Safety Executive (HSE) and local authorities. Inspectors have powers under Section 20 to enter premises, inspect documents, take samples, and interview persons. They can issue improvement notices (requiring specific action within a time limit) and prohibition notices (stopping work immediately where there is a risk of serious personal injury).

Prosecution under HASAWA 1974 can result in:

• Magistrates' court: Unlimited fines for most offences; up to 6 months' imprisonment for offences under Sections 33(1)(a), (c), (d) and (o).
• Crown Court: Unlimited fines; up to 2 years' imprisonment for some offences.

In 2022/23, the HSE secured 441 convictions with total fines of £35.9 million. The average Crown Court fine for health and safety offences was £226,000. These figures demonstrate that the courts take HASAWA breaches seriously.

Section 37 allows for the prosecution of company directors, managers and similar officers personally where an offence by a corporate body is proved to have been committed with their consent, connivance, or through their neglect. Directors cannot hide behind limited liability when it comes to health and safety.

The HSE's Fee for Intervention (FFI) scheme means that where an inspector identifies a material breach of health and safety law, the business is invoiced at £163 per hour for the time spent investigating and taking enforcement action. A single site visit can easily generate an FFI bill of several thousand pounds, separate from any fine.

How HASAWA 1974 Relates to Risk Assessments

The Health and Safety at Work Act 1974 itself does not explicitly use the term "risk assessment" — but the concept is inherent in the phrase "so far as is reasonably practicable". To determine what is reasonably practicable, you must identify the risks, evaluate their severity and likelihood, and assess the available control measures. That process is a risk assessment.

The explicit legal requirement to carry out written risk assessments comes from Regulation 3 of the Management of Health and Safety at Work Regulations 1999, which were made under the authority of HASAWA Section 15. Every employer and self-employed person must make a suitable and sufficient assessment of the risks to the health and safety of employees and others affected by their work. Where 5 or more people are employed, the significant findings of the assessment must be recorded.

In practice, this means that compliance with HASAWA 1974 requires a written risk assessment for almost every work activity. Whether you are a small contractor, a landlord, a salon owner, a care provider, or a school, you need documented risk assessments covering the significant hazards in your operation.

Anyrisks generates compliant, industry-specific risk assessments in under 2 minutes. You answer a few questions about your activity and the system produces a professional PDF and editable Word document covering the hazards, legal references, and control measures relevant to your work. No health and safety expertise required — generate your risk assessment now for £29.

HASAWA 1974 and the Construction Industry

The construction sector accounts for the highest number of fatal injuries to workers of any sector in Great Britain. In 2022/23, 45 workers were fatally injured in construction, according to HSE data. This represents 30% of all worker fatalities across all industries.

For construction businesses, HASAWA 1974 works in conjunction with sector-specific regulations. The Construction (Design and Management) Regulations 2015 impose detailed duties on clients, designers, principal designers, principal contractors and contractors — but all of these regulations derive their authority from HASAWA. Section 2 and Section 3 duties remain in force regardless of the existence of CDM 2015.

A small building contractor carrying out domestic refurbishment work is subject to: Section 2 duties towards any employees; Section 3 duties towards the homeowner, neighbours, and the public; CDM 2015 duties as a contractor under Regulation 15; Work at Height Regulations 2005 for any work involving ladders or scaffolding; Manual Handling Operations Regulations 1992 for lifting materials; COSHH 2002 for exposure to silica dust, solvents, or other hazardous substances; and the requirement for written risk assessments under MHSWR 1999. All of these trace back to HASAWA 1974.

HASAWA 1974 and Other Sectors

The Act applies equally to service industries, retail, hospitality, healthcare, education, and every other sector. A nursery or childcare setting must comply with Section 2 duties towards staff, Section 3 duties towards the children, and EYFS statutory framework requirements which include risk assessments for outings and activities. A landlord renting residential or commercial property is subject to Section 4 duties and must ensure that electrical installations, gas appliances, fire safety provisions and structural elements are safe. The Regulatory Reform (Fire Safety) Order 2005 creates additional duties for the "responsible person" — but these sit within the HASAWA framework.

The Concept of "Reasonably Practicable"

The phrase "so far as is reasonably practicable" (SFAIRP) is central to HASAWA 1974. It does not mean "if convenient" or "if you can afford it". The legal test was defined in the case of Edwards v National Coal Board [1949]: a duty to do what is reasonably practicable means that the risk must be balanced against the sacrifice (in money, time and trouble) necessary to avert it. Unless the cost is grossly disproportionate to the risk, the measure must be implemented.

In practice, this means that low-cost, simple risk controls must always be implemented. Expensive or highly complex controls may not be required if the risk is low — but the burden of proof lies with the duty holder to demonstrate that the cost would be grossly disproportionate. HSE guidance states that for risks of death or serious injury, the disproportion factor may need to be as high as 10:1 — meaning a measure costing £10,000 should still be implemented if it prevents a single serious injury with a risk cost of £1,000.

HASAWA 1974 and Enforcement

The HSE is the enforcing authority for most workplaces. Local authorities enforce health and safety in lower-risk premises such as offices, shops, hotels, restaurants and residential care homes. Enforcement is prioritised according to risk. The HSE focuses resources on high-hazard industries (construction, agriculture, manufacturing, waste and recycling) and on serious incidents and complaints.

During a workplace inspection, an inspector will examine: risk assessments; health and safety policies; training records; maintenance logs; accident records; and compliance with specific regulations such as COSHH, LOLER, PUWER and RIDDOR. They will also observe actual working practices. An inspector can interview employees and request documents on the spot. Obstruction of an inspector is an offence under Section 33(1)(h).

Inspectors use their professional judgement to determine whether the SFAIRP standard has been met. If the inspector concludes that risks are not being managed adequately, they may take enforcement action ranging from verbal advice through to prosecution. The HSE's Enforcement Policy Statement (2023) confirms that the regulator will not hesitate to prosecute where there is a serious breach or where previous advice or enforcement has been ignored.

How HASAWA 1974 Applies to Domestic Work

HASAWA 1974 does not generally apply to purely domestic arrangements in private households — Section 51 excludes domestic servants employed in private households. However, if you employ someone in connection with a trade, business or other undertaking carried on for profit, HASAWA applies even if the work is performed in a domestic setting. For example, a homeowner who directly employs a cleaner, gardener or nanny on a regular, paid basis may be subject to Section 2 duties.

Domestic clients commissioning construction work are subject to duties under the CDM Regulations 2015, but most client duties transfer to the contractor under Regulation 4(7). Homeowners do not generally have Section 2 duties towards contractors working in their home, but they must not intentionally or recklessly endanger those contractors (Section 3 applies where the homeowner controls the work to a significant degree).

Statutory Instruments Made Under HASAWA 1974

Section 15 of HASAWA 1974 grants the Secretary of State broad powers to make health and safety regulations. The following major regulations have been made under this power:

• Management of Health and Safety at Work Regulations 1999 — general risk assessment and management duties
• Workplace (Health, Safety and Welfare) Regulations 1992 — standards for work environment, lighting, ventilation, temperature, welfare facilities
• Personal Protective Equipment at Work Regulations 1992 — provision, use and maintenance of PPE
• Provision and Use of Work Equipment Regulations 1998 (PUWER) — safety of machinery and work equipment
• Lifting Operations and Lifting Equipment Regulations 1998 (LOLER) — safe use of lifting equipment
• Control of Substances Hazardous to Health Regulations 2002 (COSHH) — exposure to hazardous substances
• Manual Handling Operations Regulations 1992 — prevention of musculoskeletal injuries
• Work at Height Regulations 2005 — control of falls from height
• Construction (Design and Management) Regulations 2015 — construction project health and safety management
• Reporting of Injuries, Diseases and Dangerous Occurrences Regulations 2013 (RIDDOR) — mandatory incident reporting

Each of these sets of regulations is enforceable under HASAWA 1974. A breach of a regulation is treated as a breach of the Act under Section 47(2), meaning the same penalties apply.

Common HASAWA 1974 Breaches

The most common breaches prosecuted under HASAWA 1974 include:

• Failure to conduct suitable and sufficient risk assessments (MHSWR Regulation 3, enforced under HASAWA)
• Failure to provide adequate information, instruction and training (Section 2(2)(c))
• Failure to provide and maintain safe plant and systems of work (Section 2(2)(a))
• Failure to manage contractors and ensure coordination of work (Section 3(1) and (2))
• Inadequate control of work at height, leading to falls (Work at Height Regulations enforced under HASAWA)
• Exposure to hazardous substances without adequate control measures (COSHH enforced under HASAWA)
• Failure to maintain a written health and safety policy (Section 2(3))

In every case, the question is whether the duty holder did what was reasonably practicable to prevent the risk. If a simple, low-cost control measure was available but not implemented, prosecution is highly likely to succeed.

Final Thoughts

The Health and Safety at Work etc. Act 1974 is not optional. It is the legal foundation for every workplace safety requirement in the UK. Whether you are an employer, self-employed, a landlord, or an employee, you have duties under this Act. Those duties are criminal in nature, enforceable by prosecution, and backed by unlimited fines and potential imprisonment.

Compliance starts with understanding your risks and putting in place reasonably practicable control measures. That requires a written risk assessment. If you need one now, Anyrisks generates compliant, industry-specific risk assessments in under 2 minutes for £29 — delivered as PDF and editable Word document.