Health and Safety at Work Act 1974: A Plain Guide

Most site managers can say "so far as is reasonably practicable" in their sleep. Fewer could tell you which section it comes from, who it applies to, or why it matters when an inspector is stood in the welfare cabin asking why the edge protection went up a day after the roofers started. That phrase, and most of what sits behind your RAMS, traces back to the Health and Safety at Work Act 1974.

The Health and Safety at Work etc. Act 1974 (HSWA, often shortened to HASAWA) is the main law covering health and safety at work in Great Britain. It places general duties on employers to protect their employees (section 2) and anyone else affected by their work (section 3). It also places duties on people who control premises (section 4), on designers, manufacturers and suppliers (section 6), and on employees themselves (section 7). It set up the Health and Safety Executive, gives inspectors their enforcement powers, and is the parent Act for most of the regulations you work with, from CDM 2015 to COSHH and RIDDOR.

This guide walks through the sections that matter on site, how they're enforced, and how they connect to the RAMS you write every week.

What the Health and Safety at Work Act 1974 actually does

The Act is short on detail and long on principle. It doesn't tell you how high a guardrail should be or how often to inspect a scaffold. Instead it sets goals, such as safe plant, safe systems of work and a safe place of work, and leaves the detail to regulations made under it and to the judgement of the people running the work.

That's why so many familiar regulations sit underneath it:

• the Construction (Design and Management) Regulations 2015
• the Control of Substances Hazardous to Health Regulations 2002
• the Management of Health and Safety at Work Regulations 1999
• the Work at Height Regulations 2005
• the Provision and Use of Work Equipment Regulations 1998 (PUWER)
• the Reporting of Injuries, Diseases and Dangerous Occurrences Regulations 2013 (RIDDOR)

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

What "so far as is reasonably practicable" means

Almost every general duty in the Act is qualified by this phrase. It doesn't mean "whatever is possible", and it doesn't mean "whatever's affordable". It means weighing the risk against the sacrifice, in money, time and trouble, needed to control it. You only stop adding controls when the cost is grossly disproportionate to the risk that's left. The courts set this out in Edwards v National Coal Board in 1949, and it still holds.

Two practical consequences follow.

First, the bigger the risk, the more you're expected to do. Collective edge protection on a flat roof is cheap relative to the risk of a fall, so relying on harnesses alone will be hard to justify.

Second, section 40 of the Act puts the burden of proof on you. If you're prosecuted for failing to do something so far as is reasonably practicable, it's for you to prove you couldn't reasonably have done more. That's one of the plainest reasons to write your reasoning down in a risk assessment and method statement.

Section 2: employers' duties to employees

Section 2(1) is the headline duty: every employer must ensure, so far as is reasonably practicable, the health, safety and welfare at work of all their employees. Section 2(2) then spells out what that includes:

• (a) Safe plant and systems of work. Equipment that's maintained and suitable, and methods of work that are planned. A safe system of work written into a method statement is the most common way to show this.
• (b) Safe use, handling, storage and transport of articles and substances. Think cement, solvents, gas cylinders and cleaning chemicals.
• (c) Information, instruction, training and supervision. Not just a signed induction sheet. It means people know the method and someone checks they're following it.
• (d) A safe place of work, with safe access and egress. Maintained walkways, lit stairwells, clear fire routes.
• (e) A safe working environment with adequate welfare facilities. Toilets, washing facilities, drinking water and somewhere to rest and eat.

The written health and safety policy

Section 2(3) requires employers to prepare, and revise when needed, a written statement of their general health and safety policy, with the organisation and arrangements for carrying it out, and to bring it to employees' attention. HSE's guidance is simple: if you have five or more employees, you must write your policy down. Under five, you don't have to, though it's still useful.

Safety representatives and consultation

Sections 2(4) to 2(7) deal with safety representatives appointed by recognised trade unions, consultation with them, and safety committees. If safety representatives ask for a safety committee in the cases set out in regulations, the employer must set one up. In practice, most consultation on site happens through briefings, toolbox talks and the people who know the job best raising problems before they bite.

Section 3: duties to people who aren't your employees

Section 3(1) requires every employer to run their undertaking so that people not in their employment, who may be affected by it, aren't exposed to risks to their health or safety, so far as is reasonably practicable. That covers members of the public, visitors, clients' staff and other contractors.

This section matters on almost every job:

• Construction: hoarding, gates, traffic routes and deliveries all affect passers-by and neighbours. A site next to a school needs a different plan from one on an industrial estate.
• Facilities management: contractors often work inside occupied buildings. A ceiling void opened above an office floor, or a floor cleaned during opening hours, puts staff and visitors at risk. The FM risk assessment guide goes through the common ones.
• Security: event security teams manage crowd flow, entry points and ejections, all of which affect the public directly.

Section 3(2) applies a similar duty to self-employed people, but since changes made by the Deregulation Act 2015 it only applies to self-employed people conducting an undertaking of a prescribed description. In practice, many self-employed people working in construction or with certain hazards are still covered. If you're self-employed, check HSE's guidance before assuming the Act doesn't reach you.

Sections 4 and 6: premises and products

Section 4: people in control of premises

Section 4 places duties on anyone who has control, to any extent, of non-domestic premises used by people who aren't their employees as a place of work. They must take reasonable measures to make sure the premises, access and exit, and any plant or substances provided there are safe. For FM providers and building owners, this is where your duty to contractors coming onto your site comes from.

Section 6: designers, manufacturers and suppliers

Section 6 covers people who design, manufacture, import or supply articles and substances for use at work. They must make sure, so far as is reasonably practicable, that those articles and substances are safe when properly used, and provide adequate information about safe use. It's why equipment arrives with instructions and chemicals arrive with safety data sheets, and why you should actually read them.

Section 7: employees' duties

Section 7 puts two duties on every employee while at work:

• to take reasonable care for their own health and safety and that of others who may be affected by what they do, or fail to do, at work
• to co-operate with their employer so far as is necessary to let the employer meet their legal duties

On site, that means following the method statement, wearing the PPE provided and reporting defects. An operative who removes a guard to speed up a cut, or unclips on an exposed edge, is breaching section 7. Employees can be prosecuted under the Act, though enforcement usually focuses on the employer's arrangements first.

Sections 8 and 9

Two short sections back this up. Section 8 says nobody may intentionally or recklessly interfere with or misuse anything provided for health, safety or welfare. That covers taking down barriers, disabling interlocks and "borrowing" a fire extinguisher to prop a door. Section 9 says employers can't charge employees for anything done or provided to meet a specific statutory requirement, such as PPE that's required by law.

How the Health and Safety at Work Act is enforced

The Act is enforced by HSE and by local authorities. Broadly, HSE covers sites such as construction, factories and farms, while local authorities cover places such as offices, shops, warehouses, hotels and leisure premises. Inspectors can enter premises, examine and investigate, take measurements, photographs and samples, and require information.

When they find a problem, the main tools are:

• Advice, verbal or written. Often the first step for minor issues.
• Improvement notice (section 21). Served where an inspector believes the law is being broken. It says what's wrong and gives a deadline to fix it, which can't be earlier than the period allowed for an appeal. The tribunal rules set the appeal period at 21 days. An appeal suspends the notice until it's decided.
• Prohibition notice (section 22). Served where an activity involves, or will involve, a risk of serious personal injury. It stops the activity, either immediately or from a set time, and an appeal doesn't suspend it unless the tribunal says so. A breach of the law isn't needed for a prohibition notice.
• Fee for Intervention. Where an inspector finds a material breach and tells you in writing, HSE recovers its costs. The rate is £188 an hour from 1 April 2026, covering the time taken to identify the problem and help put it right.
• Prosecution. For the most serious breaches. Since 12 March 2015, magistrates' courts can impose unlimited fines for most health and safety offences, and in the Crown Court some offences can lead to up to two years' imprisonment as well as an unlimited fine.

Section 37 adds personal liability. Where a company commits an offence with the consent or connivance of, or through neglect by, a director, manager or similar officer, that person can be prosecuted too. That's why directors increasingly want to see RAMS that make sense, not just ones that exist.

For more on what an inspector will actually check, see what HSE inspectors look for in risk assessments.

How HASAWA connects to your RAMS

The Act doesn't use the phrase "RAMS", and nor do the regulations. But the paperwork you produce is how you show you've met its general duties.

• Section 2(2)(a) safe systems of work is met in practice by a planned method, written down, and followed. That's your method statement.
• Section 2(2)(c) information, instruction, training and supervision is met by briefing that method to the people doing the work and checking it's followed.
• Regulation 3 of the Management Regulations, made under the Act, requires a suitable and sufficient risk assessment. Regulation 7 requires competent help to put the right measures in place.

If you're newer to the documents themselves, our explainer on what a RAMS document is covers the basics.

What it looks like on a real job

A groundworks package

A contractor is digging a 2-metre service trench beside a public footpath. Section 2 covers the operatives: shoring or battering, a safe way in and out, and isolation of buried services. Section 3 covers the public: barriers, lighting and a safe diverted route. Both belong in the same RAMS.

An FM planned maintenance round

An FM team is replacing light fittings in an open-plan office. Section 2 covers the technicians working from podium steps and isolating circuits. Section 3 covers the office staff walking under the work. Section 4 comes in if the client controls the building and the team are contractors on it.

A security contract at a venue

A security provider supplies SIA-licensed door supervisors for a nightclub. Section 2 covers the door staff: training, supervision, body-worn video and a clear ejection procedure. Section 3 covers customers and the queue outside. Section 7 covers each officer's own conduct.

How swiftRMS helps

The Act asks you to plan work, write down how it'll be done safely, and make sure people know. swiftRMS helps with the drafting part.

You describe the task, the site and the people affected, and swiftRMS drafts a RAMS with hazards, controls and a method statement that cites the relevant legislation, including the Act and the regulations made under it. The draft is ready for review, not ready to use. A competent person still reviews, edits and approves it for the specific site and task, as the Management Regulations expect. You can look at example RAMS to see the level of detail before you try it.

If you want to see how a draft handles one of your own tasks, try a free RAMS preview with no signup. If it helps, there's a 14-day free trial with no card needed.

Frequently Asked Questions

What are the main sections of the Health and Safety at Work Act 1974?

The sections most people need are section 2 (employers' duties to employees), section 3 (duties to people who aren't employees), section 4 (people in control of premises), section 6 (designers, manufacturers and suppliers), section 7 (employees' duties), sections 8 and 9 (no misuse of safety equipment and no charging for required safety measures), sections 21 and 22 (improvement and prohibition notices), section 37 (directors' liability) and section 40 (the burden of proving what was reasonably practicable).

Can employees be prosecuted under HASAWA?

Yes. Section 7 places duties on employees to take reasonable care for themselves and others and to co-operate with their employer. Breaching those duties is an offence. In practice, HSE's focus is usually on whether the employer's arrangements were adequate, but deliberate or reckless behaviour by an individual can lead to prosecution.

Does a small business need a written health and safety policy?

If you have five or more employees, you must write your policy down. If you have fewer than five, you don't have to, although HSE says it's still useful. Every employer still has the general duties in sections 2 and 3, whatever their size.

Is the Health and Safety at Work Act the same as the Management Regulations?

No. The Health and Safety at Work etc. Act 1974 sets the general duties. The Management of Health and Safety at Work Regulations 1999 are made under it and add specific requirements, such as carrying out a suitable and sufficient risk assessment (regulation 3) and appointing competent help (regulation 7).

Does a RAMS prove you've met the Act?

No document proves that on its own. A RAMS is evidence of how you planned the work. Whether it's suitable and sufficient depends on the site, the task and whether the controls are actually in place, so a competent person must review, edit and approve it before the work starts, and supervisors need to check it's being followed.

Does HASAWA apply in Northern Ireland?

No. The Act covers Great Britain: England, Scotland and Wales. Northern Ireland has its own equivalent, the Health and Safety at Work (Northern Ireland) Order 1978, enforced by HSENI and local councils.

Official Resources

• legislation.gov.uk: Health and Safety at Work etc. Act 1974
• HSE: Health and Safety at Work etc Act 1974 overview
• HSE: Prepare a health and safety policy
• HSE: What is Fee for Intervention?
• legislation.gov.uk: Management of Health and Safety at Work Regulations 1999, regulation 3