Every event, no matter how carefully planned, carries risk. The moment your attendees walk through the door, you are legally and morally responsible for their safety. This is not just a formality. Under the Health and Safety at Work etc. Act 1974, event organisers have a clear duty of care to everyone on site, delegates, staff, contractors, speakers, and members of the public.

For professional association conferences and corporate events, the stakes are particularly high. A single incident, a trip in the registration queue, a fire alarm with no clear evacuation procedure, or a medical emergency with no first aider on site, can cause serious harm and lasting damage to your organisation’s reputation.

This guide covers everything a professional event team needs to know about event health and safety. It walks through the UK legal framework, how to write a risk assessment step by step, the most common conference hazards and how to control them, what Martyn’s Law means for you, and how to build a solid emergency plan before the day arrives.

For event teams who want experienced support with onsite logistics, registration, and operational delivery, MICE Concierge provides full event management services for associations and businesses across the UK and internationally.

What Is Event Health And Safety? (And Why It Is Your Responsibility)

Event health and safety is the process of identifying, assessing, and controlling risks to protect everyone involved in an event, before, during, and after it takes place.

It covers every phase. That includes the build-up when contractors are setting up equipment, the event itself when hundreds of delegates are moving through your venue, and the breakdown when the venue is being cleared. In each of these phases, different hazards apply and different people are at risk.

As the event organiser, the responsibility sits with you. You cannot transfer it entirely to a venue, a supplier, or even a professional conference organiser. You can delegate tasks, and a good event management partner will take significant operational pressure off your team, but the legal duty of care stays with whoever controls the premises and the event.

Good event health and safety protects three things:

People, preventing injury, illness, and harm to everyone on site. The event, avoiding disruptions, shutdowns, or complaints that damage the delegate experience. The organiser, avoiding legal liability, regulatory fines, and reputational damage that can follow a poorly managed incident.

Health and safety is not a one-time task. It is a planning discipline that runs from your first site visit through to your post-event debrief. If you are looking for a structured approach to event planning more broadly, the MICE Concierge guide to 5 steps to planning an event is a useful starting point before you build your safety plan.

The UK Legal Framework For Event Health And Safety

UK law places clear obligations on anyone organising an event. The key pieces of legislation are set out below in plain English. Understanding which ones apply to your event is the first step in building a compliant safety plan.

If you employ five or more people, you are also legally required to have a written health and safety policy in place.

The Health and Safety Executive (HSE) is the UK’s primary regulator for workplace health and safety. Their event safety guidance at hse.gov.uk is the authoritative starting point for any event organiser working through their safety responsibilities for the first time.

For most events held in public spaces, you will also need to engage your local authority’s Safety Advisory Group (SAG). A SAG typically includes representatives from the police, fire service, ambulance service, and local council. They can provide guidance, review your safety plans, and in some cases determine whether additional resources are required for your event. Contact your local authority at least three to six months before the event to allow enough time for this process.

The maximum penalty for breaching health and safety legislation in the UK is up to two years’ imprisonment and an unlimited fine. This is not a theoretical risk. Organisers have faced prosecution following incidents that could have been prevented with a proper risk assessment and emergency plan.

What Is Martyn’s Law And What Does It Mean For Event Organisers?

Martyn’s Law is the common name for the Terrorism (Protection of Premises) Act 2025. It received Royal Assent on 3 April 2025. It is not yet in force, the implementation period runs for at least 24 months, meaning full enforcement is expected from Spring 2027. However, preparation should start now. The Home Office published its statutory guidance in April 2026, giving venues and event organisers a clear framework to begin assessing their obligations.

The law is named after Martyn Hett, one of the 22 people killed in the 2017 Manchester Arena bombing. The legislation was shaped by lessons from the Manchester Arena Inquiry and aims to ensure that venues and event organisers across the UK are better prepared to protect the public in the event of a terrorist attack.

The Act applies to any publicly accessible premises or event where 200 or more people may be present. This includes professional conferences, association congresses, trade exhibitions, and corporate events, not just concerts and festivals.

The legislation uses a tiered approach:

A “qualifying event” under Martyn’s Law is any event held at a location not primarily used as a permanent venue, for example, a temporary marquee, a hired outdoor space, or a pop-up conference facility, where 800 or more people may be present. Qualifying events carry the same obligations as Enhanced tier premises.

One point that often causes confusion: the responsible person cannot delegate their legal liability to a contracted service provider. If you use an event management agency, the legal duty remains with whoever controls the premises. Agencies can help you build and execute your procedures, but the accountability stays with you.

The penalties for serious non-compliance are significant. The SIA can issue fines of up to £18 million or 5% of worldwide revenue for large organisations, whichever is greater. The SIA can also issue restriction notices that prevent a venue from operating or an event from taking place until compliance is achieved.

The practical message is simple: if your events regularly host 200 or more people, use the implementation period to assess your events, assign a responsible person, and develop your public protection procedures. The MICE Concierge blog post on regulations and better events explores how the regulatory landscape is shifting for professional event organisers, and why early preparation consistently leads to better outcomes.

How To Write An Event Risk Assessment (Step By Step)

A written risk assessment is a legal requirement for any event where significant risks exist, under the Management of Health and Safety at Work Regulations 1999. Most venues will also ask to see it before confirming your booking. It does not need to be complex, but it does need to be thorough and documented.

Here is the five-step process recommended by the HSE, applied specifically to conference and association events.

Identify The Hazards

Walk to the venue before the event. Do this in person and bring a colleague, two sets of eyes will always spot more than one. Talk to your venue contact, your AV team, your catering manager, and your security staff. Think about every phase of the event: build-up and set-up, the event itself (including registration, sessions, breaks, and networking), and breakdown at the end.

Think about hazards in categories: physical hazards (trailing cables, wet floors, uneven surfaces), fire hazards (cooking equipment, electrical installations, blocked exits), crowd-related hazards (overcrowding at registration, high-traffic corridors, narrow emergency exits), and security hazards (unauthorised access, unattended bags, external threats).

Decide Who Might Be Harmed And How

For each hazard you identify, consider who is at risk and in what way. The groups you need to think about include:

• Delegates and attendees (including elderly, disabled, or vulnerable individuals)
• Event staff and volunteers
• Contractors and suppliers on site
• Speakers, VIP guests, and exhibitors
• Members of the public in adjacent areas

People with mobility impairments, visual or hearing difficulties, or other access needs require specific consideration. A delegate who uses a wheelchair needs a different evacuation route to one who is fully mobile. Build these differences into your risk assessment from the start.

Evaluate The Risks And Decide On Controls

For each hazard, assess two things: how likely is harm to occur, and how severe would it be if it did? A simple risk matrix helps with this. Score likelihood from 1 (very unlikely) to 5 (almost certain). Score severity from 1 (minor injury) to 5 (fatality or multiple serious injuries). Multiply the two scores to get a risk rating.

A rating of 1–4 is low risk. A rating of 5–9 is medium risk. A rating of 10–25 is high risk. High-risk items need immediate attention and strong control measures before the event goes ahead.

Then apply the hierarchy of controls to reduce each risk:

1. Eliminate: Remove the hazard entirely if possible. Can you redesign the layout to remove a trip hazard rather than just covering a cable?
2. Substitute: Replace something dangerous with something safer. Use battery-powered lighting rather than trailing extension cables in high-footfall areas.
3. Engineering controls: Add physical safeguards. Cable covers, barriers, non-slip matting, and additional lighting all fall into this category.
4. Administrative controls: Change how people work through procedures, briefings, signage, and staff training.
5. Personal protective equipment (PPE): Provide protective gear where other controls are insufficient. PPE is always the last resort, not the first.

Record Your Findings

Write it down. Your risk assessment must include: the hazard identified, who is at risk, the control measures in place, the risk rating before controls, and the residual risk rating after controls are applied. Keep it clear and factual. A good risk assessment is a working document, not a piece of formality.

Your venue may have a standard template. Always ask before you start from scratch, adapting an existing template is faster and ensures you cover the venue’s specific requirements.

Review And Update

A risk assessment is a living document, not a one-time task. Update it if anything changes before the event, a new activity is added, the venue layout shifts, or your attendance numbers change significantly. Review it after every event and note anything that needs to change for next time.

For association and congress events with complex delegate journeys, the registration process itself often introduces risks that get overlooked at the planning stage. Overcrowding at check-in is one of the most common and preventable hazards at professional conferences. The MICE Concierge guide to improving event onsite check-in and badge collection covers the operational steps that reduce congestion and keep that first delegate interaction safe and smooth.

Common Event Hazards And How To Control Them

Most generic health and safety content focuses on outdoor events, stages, crowd barriers, and generators. This section focuses specifically on the hazards most relevant to indoor professional conferences, congresses, and association events.

Here is a closer look at the hazards that most commonly catch conference organisers off guard.

Trailing Cables

This is the most common cause of injury at indoor events. Every cable, AV, power, lighting, and PA, must be secured, covered, or routed away from attendee walkways before doors open. Your AV team should carry cable covers as standard. Bright-coloured tape can highlight any cable that cannot be fully covered. Carry out a final walk of the room before registration opens.

Overcrowding At Registration

A bottleneck at the entrance creates a safety risk at the same time as it creates a delegate experience problem. A large queue pressing into a narrow foyer is a crowd management hazard, particularly if an evacuation is needed in the first hour of the event. Staggered arrival times, a well-designed queuing system, and self-check-in kiosks all reduce the congestion. MICE Concierge’s onsite registration and badging service uses brandable check-in kiosks that allow pre-registered delegates to check in and print their own badge on arrival, spreading the flow and reducing the pinch point at the door.

Fire Safety

Even for a straightforward indoor conference, a fire risk assessment is a legal requirement under the Regulatory Reform (Fire Safety) Order 2005. Before the event, confirm the location of all fire exits with your venue contact. Check that exits are unlocked and unobstructed before delegates arrive. Appoint trained fire wardens from your event team and brief them on the evacuation procedure. Your venue will have a fire action notice, make sure your team knows where it is and what it says.

Medical Emergencies

Every event needs a qualified first aider on site and a fully stocked first aid kit. For larger events, you need a dedicated first aid team. Every venue should have access to a defibrillator (AED) within three minutes of any point in the building. Know the location of the nearest hospital and the fastest route for emergency vehicles to access your venue. This information should be written into your event safety plan and shared with all senior staff.

Electrical Equipment

All portable electrical appliances brought to the event by your team or by contractors must be PAT (Portable Appliance Testing) tested and in good condition. Ask contractors to provide their PAT test certificates in advance. In any setting where electrical equipment is used near water or outside, residual current devices (RCDs) must be in place.

Food Safety

If catering is provided at your event, all caterers must hold valid food hygiene certificates. Allergen controls are a legal requirement under the Food Information (Amendment) Regulations 2019. Attendees must be able to identify allergens in any food served. Brief your catering team on the procedure for managing a delegate who reports an allergic reaction.

For conference organisers thinking about the full delegate experience alongside safety, the MICE Concierge blog post on designing a conference that delegates actually enjoy covers how the physical setup, flow, and environment of an event all contribute to delegate wellbeing, and where safety and experience planning naturally overlap.

Event First Aid Requirements: What You Actually Need?

UK law does not prescribe a fixed ratio of first aiders to attendees for events. The HSE takes a risk-based approach, which means the right level of first aid provision depends on the nature of your event, your audience, and your venue.

These are the key factors to consider:

• Number of attendees: more people means more risk of a medical incident
• Nature of the event: a seated conference carries different risks to a team-building day involving physical activity
• Age and vulnerability of attendees: events with elderly delegates, children, or people with known medical conditions need more provision
• Duration: an all-day congress carries more risk than a two-hour afternoon briefing
• Distance from emergency services: how quickly can an ambulance reach your venue?
• Whether alcohol is being served: this increases the risk of incidents

As a practical baseline for indoor professional conferences:

• Up to 100 attendees: at minimum, one appointed person with first aid awareness training and a well-stocked first aid kit.
• 100 to 500 attendees: at least one qualified first aider (holding a valid HSE-approved First Aid at Work or Emergency First Aid at Work certificate) on site at all times during the event.
• 500 or more attendees: consider a dedicated first aid team or a contracted first aid provider such as St John Ambulance or British Red Cross.

Every event, regardless of size, should have access to an AED (automated external defibrillator) within three minutes’ walk of any point in the venue. Many conference venues now have them installed. Always confirm the location before your event and make sure at least one member of your team knows how to use it.

Brief all staff on who the first aider is and where the first aid kit is before the event begins. Do not assume they already know.

Event Fire Safety: The Checks You Cannot Skip

Fire safety at events is governed by the Regulatory Reform (Fire Safety) Order 2005. Whether your event is in a permanent venue, a hired space, or a temporary structure such as a marquee, you must ensure a fire risk assessment has been completed and that appropriate measures are in place.

For events in established venues, the venue itself will typically hold a fire risk assessment. As the event organiser, you still need to understand it. Your responsibilities include:

Know the fire exists. Walk every exit before delegates arrive. Check that all fire exits are unlocked, clearly signed, and unobstructed. A fire exit that is blocked by equipment, signage, or delegate bags is not just a breach of fire safety law, it is a serious risk to life.

Appoint fire wardens. For most indoor conferences, at least one fire warden per floor or zone is a sensible minimum. Fire wardens are responsible for directing delegates to exits, checking toilets and breakout rooms are clear, and liaising with the fire service on arrival.

Brief your team. Every member of your event staff should know the assembly point, the evacuation procedure, and who is responsible for each area. Do not assume they will remember from a previous event. Brief them on the day, every time.

Catering and cooking equipment. If catering involves cooking on site, ensure all cooking equipment is positioned away from delegates, that appropriate fire extinguishers are nearby, and that your catering team knows the fire procedure.

Temporary structures. If your event uses a marquee or temporary structure, a separate fire risk assessment is required for that structure. This is often overlooked when planners focus on the main venue.

If your event involves any special effects, pyrotechnics, or live fire elements, even something as simple as candles on tables, these must be specifically identified and controlled within your fire risk assessment.

How To Write An Event Emergency Plan?

A risk assessment identifies the risks at your event. An emergency emergency plan tells your team what to do when something goes wrong. These are two separate documents, and you need both.

A good event emergency plan covers the following.

Evacuation Procedure

Where are the exits? Who is responsible for leading each zone of the venue? What is the designated assembly point? How will you account for all delegates, including those with mobility needs? How will you communicate the evacuation to attendees, PA system, event app notification, or verbal instruction from wardens?

Every member of your event team needs to know the evacuation procedure before the event opens. Brief them at the start of each event day, not just once during the planning phase.

Invacuation Procedure

Invacuation is the process of moving people to a place of safety inside the building rather than outside it. This is relevant when evacuating to the street would create greater risk, for example, if there is an incident outside the venue or if weather conditions make outdoor assembly dangerous.

Invacuation has become a specific requirement under Martyn’s Law for events with 200 or more attendees. You need a designated safe area inside the venue, a plan for how to direct people there, and a communication procedure for keeping delegates calm and informed.

Lockdown Procedure

How will you secure the venue quickly if a security threat is identified outside or inside the building? Who has the authority to initiate a lockdown? How will you communicate with delegates during a lockdown without causing panic? These questions need written answers before your event, not improvised responses during one.

Communication Plan

Who calls the emergency services, and what is the single number all staff have saved in their phone? Who is the designated point of contact with police and ambulance if they arrive on site? Who handles communication with delegates? Who speaks to the press if needed? Assign these roles in advance and make sure every person knows their responsibility.

Incident Reporting

Have an incident report form ready and accessible to all senior staff. Every injury, near miss, and security incident must be logged, regardless of how minor it appears at the time. These records protect you legally and provide the evidence base for improving your safety planning at future events.

Brief all event staff on the emergency plan before the event starts. Verbal briefings are more effective than emails. Walk the team through the procedure on site whenever possible.

For events with 200 or more attendees, share your emergency plan with your venue, local authority, and relevant emergency services in advance of the event.

The delegate journey does not end when the event finishes. How you communicate with attendees before, during, and after an event is part of your overall duty of care. The MICE Concierge blog post on successful post-event engagement covers how professional communication after an event maintains trust, something that matters even more if a safety incident has occurred.

Public Liability Insurance For Events: Do You Need It?

Public liability insurance covers you if an attendee, member of the public, or third party suffers injury or property damage as a result of your event. It is one of the most important forms of protection an event organiser can have.

Is it a legal requirement? Not always, but in practice, most venues will not accept your booking without it. The minimum cover required by most UK venues is £5 million. Many professional venues and local authorities require £10 million as a condition of hire. Check your venue’s requirements before you purchase a policy.

If you employ staff for the event, employers’ liability insurance is a legal requirement under the Employers’ Liability (Compulsory Insurance) Act 1969. The minimum legal cover is £5 million.

Other types of insurance worth considering for professional conference and association events:

• Event cancellation insurance: covers your non-refundable costs if the event has to be cancelled due to circumstances outside your control, such as extreme weather, a key speaker withdrawing, or a venue becoming unavailable.
• Equipment insurance: covers damage to AV equipment, exhibition stands, and other hired or owned items on site.
• Professional indemnity insurance: relevant if you are providing event management services as a business, covering you against claims that your professional advice or service caused financial loss.

Always read the policy carefully before purchasing. Many standard event insurance policies contain exclusions for outdoor events, events serving alcohol, events above a certain capacity, or events with specific activities such as inflatables or live entertainment. Check every detail against your actual event before assuming you are covered.

Good Event Health And Safety Planning Starts Long Before The Day

Event health and safety is not something you can leave until the week before. The best-run professional conferences and association events treat safety planning as an integral part of the event planning process, not a separate compliance exercise that gets added at the end.

Start your risk assessment as soon as you have a venue and an expected attendance figure. Build your emergency plan while you are still designing the delegate journey. Brief your team on their safety responsibilities before you brief them on the running order.

Get these foundations right and your event will not only meet its legal obligations, it will run more smoothly, feel more professional, and give your delegates the confidence that they are in safe hands from the moment they arrive to the moment they leave.

If your team needs experienced support with onsite logistics, delegate management, and the operational delivery of your event, the MICE Concierge team works with professional associations and businesses across the UK.

Frequently Asked Questions on Event Health And Safety

What Is The Purple Guide?

The Purple Guide is a comprehensive reference document covering health, safety, and welfare at events. Originally published by the HSE, it is now maintained by the Events Industry Forum and is considered the industry standard reference for UK event organisers. It is available at thepurpleguide.co.uk and covers everything from crowd management and medical provision to temporary structures and electrical safety.

Do I Need A Risk Assessment For Every Event?

Yes. Under the Management of Health and Safety at Work Regulations 1999, a written risk assessment is a legal requirement for any event where significant risks exist. Most venues will also request it as part of the booking process. Even for smaller events, a documented risk assessment protects you legally and helps your team plan effectively.

What Is The HSE’s Role In Event Safety?

The Health and Safety Executive (HSE) is the UK’s national regulator for workplace health and safety. It publishes detailed guidance for event organisers through its event safety pages at hse.gov.uk, and it has enforcement powers including the ability to inspect events, issue prohibition notices, and prosecute organisers who fail to meet their legal duties.

How Many First Aiders Do I Need At A Conference?

The HSE takes a risk-based approach rather than specifying a fixed ratio. For most indoor professional conferences, at least one qualified first aider for every 100 attendees is a practical baseline. Larger events, events involving physical activity, or events with vulnerable attendees will require more provision. Every event should have access to a defibrillator within three minutes of any point in the venue.