# How To Build a Martyn’s Law Emergency Plan for UK Events

> Build a compliant Martyn's Law emergency plan for UK events & venues. Step-by-step guidance from OnePlan. Start planning today.

**Published:** 2026-10-02 | **Updated:** 2026-10-31 | **Author:** oneplansync
**URL:** https://www.oneplan.io/articles/martyns-law-emergency-planning-guide
**Type:** post

**Categories:** Event safety and compliance

![How To Build a Martyn’s Law Emergency Plan for UK Events](https://oneplan.sites.aigrowthagent.co/wp-content/uploads/sites/80/2026/10/1788789591836-f4fbc1199ee0-4-1024x572.webp)

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## Content

*Written by: Paul Foster, Founder, CEO, OnePlan | Last updated: October 11, 2026*

## Key Takeaways

- Martyn’s Law (Terrorism (Protection of Premises) Act 2025) requires UK venues and events with 200+ people to implement four public protection procedures: evacuation, invacuation, lockdown, and communication.
- The appropriate procedure depends on threat location, with clear decision logic needed for each scenario.
- Effective emergency planning relies on to-scale site mapping of entrances, exits, refuge areas, assembly points, and crowd zones before procedures can be executed.
- Staff need briefings on procedures, with documented communication protocols, training records, and rehearsal evidence that regulators such as the SIA will expect to see.
- OnePlan provides the to-scale mapping and documentation platform needed to build, brief, and evidence Martyn’s Law emergency plans for UK events and venues.

[Turn your Martyn’s Law duties into a mapped plan with a OnePlan demo](https://www.oneplan.io/book-demo/?utm_term=martyns-law-emergency-planning-guide&utm_campaign=ai_growth_agent)

## Step 1: Define Your Scope And Planning Context

This guide supports event organizers, venue operations leads, heads of security, local-authority events officers, and race directors in the UK who act as designated responsible persons under Martyn’s Law.

[The Act establishes two tiers:](https://gov.uk/government/publications/the-terrorism-protection-of-premises-act-2025/terrorism-protection-of-premises-act-2025-statutory-guidance)

- **Standard Tier:** qualifying premises where 200–799 individuals (including staff) can reasonably be expected to be present at the same time. [The responsible person must notify the SIA and put appropriate public protection procedures in place so far as reasonably practicable.](https://gov.uk/government/publications/the-terrorism-protection-of-premises-act-2025/terrorism-protection-of-premises-act-2025-statutory-guidance)
- **Enhanced Tier:** qualifying premises or qualifying events where 800 or more individuals can reasonably be expected to be present at the same time. [In addition to notification and procedures, the responsible person must implement public protection measures that reduce vulnerability to terrorism.](https://gov.uk/government/publications/the-terrorism-protection-of-premises-act-2025/terrorism-protection-of-premises-act-2025-statutory-guidance)

Your planning context also includes site complexity, stakeholder involvement such as fire, police, medical, local authority, and Safety Advisory Groups, and the spring 2027 implementation timeline. Safety Advisory Groups are a UK-specific body and a key audience for your documented plan.

OnePlan is a planning and mapping tool, not a legal, safety, or regulatory authority. Requirements vary by geography, venue, and local authority. Always follow local regulations and the relevant authorities, including fire, police, licensing, and Safety Advisory Groups.

## What Are The Four Martyn’s Law Public Protection Procedures?

[Section 5 of the Act defines four statutory public protection procedures](https://gov.uk/government/publications/the-terrorism-protection-of-premises-act-2025/terrorism-protection-of-premises-act-2025-statutory-guidance), which are sets of actions that staff can take if they suspect an act of terrorism is occurring, or is about to occur, at the premises, at the event, or in the immediate vicinity.

- **Evacuation:** Moving people away from danger by getting them out of the premises or event, or part of it.
- **Invacuation:** Moving people away from danger to a place within the premises or event where there is less risk of physical harm. This can include bringing people in from outside or moving people from one part of the site to another where it is safe to do so.
- **Lockdown:** Securing the premises or event to prevent individuals entering or leaving, for example by locking doors, closing shutters, or using available barriers to restrict movement.
- **Communication:** Providing information to people on the premises or at the event, alerting them to danger and providing instructions where it is safe to do so, including instructions to remain in place or move away when safe.

[Public protection procedures apply to both Standard Tier and Enhanced Tier premises and qualifying events.](https://gov.uk/government/publications/the-terrorism-protection-of-premises-act-2025/terrorism-protection-of-premises-act-2025-statutory-guidance) [Public protection measures, covering monitoring, movement, physical safety and security, and security of information, apply only to Enhanced Tier premises and qualifying events.](https://gov.uk/government/publications/the-terrorism-protection-of-premises-act-2025/terrorism-protection-of-premises-act-2025-statutory-guidance)

For deeper background on procedures and risk assessment, see [Martyn’s Law Safety Procedures: The Complete Guide](https://oneplan.io/articles/martyns-law-safety-procedures/?utm_term=martyns-law-emergency-planning-guide&utm_campaign=ai_growth_agent) and [Martyn’s Law Risk Assessment: The Enhanced Tier Framework](https://oneplan.io/articles/martyns-law-risk-assessment/?utm_term=martyns-law-emergency-planning-guide&utm_campaign=ai_growth_agent).

[See how OnePlan supports all four Martyn’s Law procedures on a live map](https://www.oneplan.io/book-demo/?utm_term=martyns-law-emergency-planning-guide&utm_campaign=ai_growth_agent)

## How Do You Choose Between Evacuation, Invacuation, And Lockdown?

Most guidance explains the procedures but leaves the decision-making gap. [The statutory guidance is clear that the most appropriate response depends on the nature and location of the threat](https://gov.uk/government/publications/the-terrorism-protection-of-premises-act-2025/terrorism-protection-of-premises-act-2025-statutory-guidance). Evacuation may be preferable when the threat is inside, while invacuation and lockdown may be more appropriate when the threat is outside.

A practical decision framework looks like this:

- **Threat is inside the site:** Evacuation. Move people out via the nearest safe exit and avoid predictable muster points that could become secondary targets.
- **Threat is outside the site or approaching:** Invacuation. Move people to a designated safer area within the site, secure entry points, and prevent further ingress.
- **Threat is at the perimeter or imminent breach:** Lockdown. Secure all access points, restrict movement, and hold people in place until the situation is resolved or police instruct otherwise.
- **Situation is unclear or evolving:** Communication first. Alert staff, gather information, then initiate the appropriate procedure.

[Invacuation and lockdown are the two procedures most often conflated.](https://provarisk.co.uk/martyns-law/qa_12-what-are-public-protection-procedures) Invacuation relocates people to a safer area within the site. Lockdown contains them where they are and secures the perimeter. A single combined “shelter in place” procedure does not discharge both duties.

### How To Plan An Invacuation For An Outdoor Event Site

The hardest case is an outdoor site with no permanent building, such as a festival field, a road race route, or a market with no fixed structure. [The statutory guidance recognises that invacuation can mean moving people from one part of the premises or event to another where it is safe to do so](https://gov.uk/government/publications/the-terrorism-protection-of-premises-act-2025/terrorism-protection-of-premises-act-2025-statutory-guidance). It does not require a permanent building.

At an outdoor festival in the UK, for example, a designated on-site refuge area such as a fenced compound, a backstage zone, or a welfare area away from the main crowd can serve as the invacuation destination. The key is that this area is identified, mapped, and known to staff before the event. This is an illustrative example; requirements vary by site and local authority.

The four procedures also sequence into each other. Communication typically initiates the response. Invacuation may precede lockdown. Evacuation may follow lockdown once it becomes safe. [Large or complex sites may need different procedures in different zones, or procedures in sequence.](https://gov.uk/government/publications/the-terrorism-protection-of-premises-act-2025/terrorism-protection-of-premises-act-2025-statutory-guidance) A workable plan needs mapped decision points and alternative routes, rather than a single fixed response.

## Step 2: Apply Procedures By Site Type

Each site type applies the four procedures in a slightly different way. These examples show how that looks across common UK event types. They are illustrative, and requirements vary by region, venue, and local authority.

- **Outdoor festival (UK):** Invacuation moves people to a designated on-site refuge area, such as a fenced compound or welfare zone away from the main stage. Lockdown secures perimeter fencing and entrance gates, while stewards, radio, and the PA system carry communication. Map the perimeter fence line, entrance and exit gates, refuge area, steward positions, PA coverage zones, and crowd areas before event day.
- **Road event (UK):** Invacuation moves participants and spectators along the route to the nearest safe off-road area or building. Lockdown secures road closures and vehicle access points in coordination with police and traffic leads. Communication runs through the marshal radio network and public address at start and finish. Map the route corridor, marshal positions, vehicle access points, road closure points, and nearest safe areas at intervals along the route.
- **Multi-level stadium (UK):** Invacuation moves people to internal concourses or designated safe zones on a specific level. Lockdown secures turnstiles, vehicle gates, and external access points. Communication uses PA, steward radio, and digital signage across multiple levels. Map each level’s entrances and exits, vomitories, concourses, internal doors, and compartmentation zones.
- **Market (UK):** Invacuation moves people to a central assembly area or nearby building. Lockdown secures vendor access points and the perimeter. Communication with traders uses radio and verbal relay. Map the stall layout, aisles, access points, service routes, and the designated assembly area.

For every site type, you first identify and map the spatial elements. The next step focuses on building that to-scale map.

## Step 3: Map Your Site To Scale First

The four public protection procedures are only executable when your site is mapped to scale with entrances, exits, refuge areas, assembly points, routes, and crowd areas already identified. A generic venue diagram will not support them. [The statutory guidance requires procedures to be appropriate and reasonably practicable for the particular premises or event.](https://gov.uk/government/publications/the-terrorism-protection-of-premises-act-2025/terrorism-protection-of-premises-act-2025-statutory-guidance)

A to-scale site map gives every staff member the same picture of the site, which means briefings, rehearsals, and bottleneck checks all start from the same source of truth. It also produces the evidence regulators expect. Without it, your procedures exist only on paper.

OnePlan is the platform built for this type of work. It is a browser-based, to-scale mapping platform. You drag and drop entrances, exits, refuge areas, assembly points, routes, and crowd areas onto a live satellite or street map of your actual site.

![Festival planning example inside OnePlan: the base layer is a zoomable satellite or street map, and everything placed on it (tents, stages, crowd barriers, toilets, vehicles, staff, signage, routes) stays accurately to scale as you zoom](https://cdn.aigrowthmarketer.co/1780620510054-c5429587ebad.png)**Festival planning example inside OnePlan: the base layer is a zoomable satellite or street map, and everything placed on it (tents, stages, crowd barriers, toilets, vehicles, staff, signage, routes) stays accurately to scale as you zoom**

You can calculate standing crowd capacity for any area, generate a Bill of Quantities for infrastructure, and export high-resolution maps up to A0, print-ready, for permits and Safety Advisory Group meetings.

OnePlan is free for your first event, up to 25 objects, so you can start placing objects on your map within seconds. You can also import existing PDFs, images, and CAD-derived files once converted to .png, turning static documents into reusable, buildable base maps.

[Stadium, a UK security solutions company, used OnePlan to plan Coventry Moves, an event with roughly 400 road closures across 7 procession routes and 110 stakeholders, cutting sign placement from 5 minutes to under a minute each and CAD work from a day for eight maps to two hours.](https://www.oneplan.io/case-studies/events-and-safety-how-stadium-managed-traffic-for-one-of-the-uks-biggest-events-in-oneplan/?utm_term=martyns-law-emergency-planning-guide&utm_campaign=ai_growth_agent) The Jockey Club, which plans large-scale racing festivals with over 100,000 attendees, describes their OnePlan as [“one single live masterplan — we treat it as the gospel of truth.”](https://www.oneplan.io/case-studies/how-the-jockey-club-plans-large-scale-racing-festivals-with-oneplan/?utm_term=martyns-law-emergency-planning-guide&utm_campaign=ai_growth_agent)

[See OnePlan create a to-scale Martyn’s Law map for your site](https://www.oneplan.io/book-demo/?utm_term=martyns-law-emergency-planning-guide&utm_campaign=ai_growth_agent)

## Step 4: Brief Staff And Document Communication

Communication is a standalone procedure under Martyn’s Law, with its own requirements and evidence. [From the moment an incident is detected, communications need to reach every person in every area within the time it takes the incident to develop, for most premises under 60 seconds.](https://provarisk.co.uk/martyns-law/qa_12-what-are-public-protection-procedures)

A communication procedure should cover:

- Available channels such as PA system, steward radio, SMS to staff, and verbal relay.
- A redundant channel if the primary one fails because of power cut or signal loss.
- Specific messages for each procedure, since a clear “evacuate now” differs from a clear “lockdown now.”
- Who is authorised to initiate a communication.
- How communications reach outdoor areas, multiple buildings, and remote staff.

[Standard Tier staff awareness requires, at minimum, that staff know evacuation routes, how to implement a lockdown, and how to communicate with visitors during an incident.](https://gov.uk/government/news/martyns-law-guidance-published-to-help-businesses) A short awareness briefing at induction, alongside health and fire safety inputs, is the example given in the statutory guidance. Procedures should be reviewed annually or when there is a significant change to the site’s setup.

A single, live, to-scale plan in OnePlan supports staff briefings directly. Every steward, security lead, and duty manager can be shown the same map, including where the refuge area is, which gates lock down, and which route leads to the assembly point.

![Workforce planning example inside OnePlan: the base layer is a zoomable satellite or street map, and everything placed on it (tents, stages, crowd barriers, toilets, vehicles, staff, signage, routes) stays accurately to scale as you zoom](https://cdn.aigrowthmarketer.co/1780620462793-34a56c1c38c8.png)**Workforce planning example inside OnePlan: the base layer is a zoomable satellite or street map, and everything placed on it (tents, stages, crowd barriers, toilets, vehicles, staff, signage, routes) stays accurately to scale as you zoom**

[The Cheese & Chilli Festival uses OnePlan’s Social Distancing Toolkit, including crowd area, queue and evacuation calculators and emergency vehicle routes, for risk assessments and management plans, describing it as providing “reliable safety and planning information that supports our planning, operations and stakeholders.”](https://www.oneplan.io/case-studies/cheese-and-chilli/?utm_term=martyns-law-emergency-planning-guide&utm_campaign=ai_growth_agent)

## What Must A Martyn’s Law Emergency Plan Document Contain?

Once staff understand the plan, you need a document that captures it clearly. For Enhanced Tier premises and qualifying events, the compliance document must be prepared, maintained, and submitted to the SIA. [Standard Tier premises have no statutory requirement to prepare or submit a compliance document, but must have appropriate procedures in place so far as reasonably practicable.](https://premisesportal.co.uk/martyns-law/required-documents)

A defensible emergency plan document should contain:

- The four public protection procedures, stated as in place.
- Decision logic for choosing between evacuation, invacuation, and lockdown.
- Site maps to scale, showing entrances, exits, refuge areas, assembly points, routes, and crowd areas.
- Roles and responsibilities, including who initiates each procedure, who communicates, and who secures access points.
- Communication protocols for each procedure.
- Staff awareness and training records, including induction briefings, refresher records, and sign-offs.
- Rehearsal records and exercise outcomes.
- Version history and review dates.

## How Do You Evidence Martyn’s Law Emergency Planning For The SIA?

[The SIA is developing templates for standard and enhanced tier operators to help document procedures and measures.](https://gov.uk/government/news/martyns-law-scope-support-and-whats-next) Use of the templates is optional. An equivalent evidence package should still show what procedures exist, why they are appropriate, how they reduce risk, and how they are implemented at the specific site.

[The SIA’s regulatory approach is supportive, proportionate, and risk-based.](https://gov.uk/government/news/sia-launches-consultation-on-section-12-guidance-for-martyns-law) Inspectors can question staff directly, so staff must be able to explain their role in each procedure. A plan that exists only as a document, with no evidence that staff know it, creates a compliance gap.

OnePlan produces the evidence layer your plan needs. Export high-resolution maps, up to A0 and print-ready, for your compliance document and Safety Advisory Group meetings, and use the Bill of Quantities to document infrastructure such as fencing, barriers, signage, and access control points with exact quantities. Because the plan is live, you can also share it in a Safety Advisory Group meeting so every stakeholder works from the same picture.

![aerial shot of a coast filled with software-added event elements. On the left, there is an app menu (OnePlan)](https://cdn.aigrowthmarketer.co/1780508353774-e6397ee8616e.png)**Beach event planning example inside OnePlan: the base layer is a zoomable satellite or street map, and everything placed on it (tents, stages, crowd barriers, toilets, vehicles, staff, signage, routes) stays accurately to scale as you zoom**

[Bearfoot Productions uses OnePlan’s crowd capacity calculations to produce defensible figures: “It’s nice to have a visual shape on our plan that shows me I can get 7,000 people at one person per square metre in there.”](https://www.oneplan.io/case-studies/how-bearfoot-productions-scaled-from-small-events-to-10000-capacity-festivals-using-oneplan/?utm_term=martyns-law-emergency-planning-guide&utm_campaign=ai_growth_agent)

For the wider compliance evidence set, see [Martyn’s Law: The Evidence Playbook For UK Venues And Events](https://oneplan.io/articles/martyns-law-compliance-guide/?utm_term=martyns-law-emergency-planning-guide&utm_campaign=ai_growth_agent) and [Martyn’s Law Permit Requirements: How To Notify And File](https://oneplan.io/articles/martyns-law-permit-requirements/?utm_term=martyns-law-emergency-planning-guide&utm_campaign=ai_growth_agent).

[Build an SIA-ready evidence pack in OnePlan](https://www.oneplan.io/book-demo/?utm_term=martyns-law-emergency-planning-guide&utm_campaign=ai_growth_agent)

## Common Challenges And Troubleshooting

Many Martyn’s Law emergency plans fail in predictable ways, and you can address these issues early.

- **Inaccurate layouts:** Plans built in PowerPoint, Excel, Canva, Photoshop, Google Maps, or internal static screenshots are not to scale. Refuge areas, exit widths, and crowd zones that look workable on a diagram may be physically impossible on the actual site. Map to scale before finalizing any procedure.
- **Version control problems:** Plans emailed back and forth between operations, security, and local authorities quickly diverge. When an incident occurs, staff may be acting on different versions. A single live plan prevents this.
- **Stakeholder misalignment:** Police, fire, medical, and local authority teams each have their own view of the site. If they are not working from the same map, coordination breaks down under pressure. Bring all stakeholders into one shared plan.
- **Underestimated infrastructure needs:** Lockdown requires enough physical barriers and lockable access points to actually secure the site. If these are not mapped and quantified in advance, you may not have ordered enough. Use a Bill of Quantities to confirm quantities before procurement.
- **Bottlenecks in crowd and traffic flow:** Evacuation routes that look clear on a static diagram may create dangerous bottlenecks at scale. Use OnePlan’s arrival and exit calculators at [calculators.oneplan.io/arrival](https://calculators.oneplan.io/arrival?utm_term=martyns-law-emergency-planning-guide&utm_campaign=ai_growth_agent) and [calculators.oneplan.io/exit/calculator](https://calculators.oneplan.io/exit/calculator?utm_term=martyns-law-emergency-planning-guide&utm_campaign=ai_growth_agent) to model flow before event day.

## Measuring Success Of Your Martyn’s Law Planning

After you address common pitfalls, you can track whether your Martyn’s Law emergency planning process is improving over time. Practical success indicators include:

- Fewer revisions between draft and final plan, which shows that the spatial build was accurate from the start.
- Smoother Safety Advisory Group approvals, where regulators and local authorities accept the plan without requesting significant changes.
- Reduced site visits, with more decisions made remotely on an accurate map rather than repeated trips to measure by hand.
- Stronger stakeholder alignment, where operations, security, police, and fire all work from the same plan on event day.
- Better resource forecasting, where infrastructure quantities match what was ordered, with no last-minute shortfalls.
- Improved event-day execution, because staff know their roles, routes, and procedures without needing to be re-briefed on the day.

Track these outcomes across events and use them to refine your template for the following year.

## Advanced Considerations And Next Steps

Once you can evidence a clear Martyn’s Law emergency plan for a single event, you can raise your maturity level across your whole portfolio.

- **Multi-event standardization:** If you run the same event annually or manage multiple venues, build a reusable template in OnePlan so the spatial elements such as refuge areas, exit routes, and assembly points carry over and only need updating for site-specific changes.
- **Template reuse:** Import your existing site plan as a .png base map and build your emergency plan on top of it each year, rather than starting from scratch.
- **Cross-department collaboration models:** Establish a clear workflow for how operations, security, medical, and local authority teams contribute to and review the plan, and at what stage.
- **Scenario planning:** Build separate procedure overlays for different threat scenarios such as external vehicle threat, internal incident, and perimeter breach so staff can be briefed on each without confusion.
- **Post-event improvement:** After each event, review what worked and what did not. Update procedures, retrain staff, and revise the plan. [The statutory guidance recommends reviewing procedures annually or when there is a significant change to the site’s setup.](https://gov.uk/government/news/martyns-law-guidance-published-to-help-businesses)

OnePlan has powered over 200,000 events in 150 countries, from community festivals to the Paris 2024 Olympic Games. The same tools that help a small market plan its invacuation route help a major stadium evidence its full Enhanced Tier compliance document.

[Standardise Martyn’s Law planning across all your events with OnePlan](https://www.oneplan.io/book-demo/?utm_term=martyns-law-emergency-planning-guide&utm_campaign=ai_growth_agent)

## Frequently Asked Questions

### What Is Martyn’s Law In The UK?

Martyn’s Law is the informal name for the Terrorism (Protection of Premises) Act 2025. It establishes legal minimum requirements for counter-terrorism preparedness at publicly accessible premises and events in the UK. [It applies to premises where 200 or more individuals can reasonably be expected to be present at the same time, across 17 categories of Schedule 1 use including entertainment, sports, food and drink, and retail.](https://gov.uk/government/publications/the-terrorism-protection-of-premises-act-2025/terrorism-protection-of-premises-act-2025-statutory-guidance) The Security Industry Authority (SIA) is the regulator. The law is expected to come into force in spring 2027.

### Who Was Martyn In Martyn’s Law?

[Martyn Hett was one of the 22 people killed in the Manchester Arena terrorist attack on 22 May 2017.](https://gov.uk/government/news/martyns-law-guidance-published-to-help-businesses) [The legislation is named in his memory, following an extensive campaign led by his mother, Figen Murray OBE, to require venues and events to take proportionate steps to protect the public from terrorism.](https://gov.uk/government/news/sia-launches-consultation-on-section-12-guidance-for-martyns-law)

### When Does Martyn’s Law Come Into Force?

The Terrorism (Protection of Premises) Act 2025 received Royal Assent on 3 April 2025. [There is a minimum 24-month implementation period, making the earliest possible commencement date 3 April 2027.](https://martynslawcost.co.uk/martyns-law-start-date) [The Home Office and SIA have both stated that the requirements are expected to come into force in spring 2027.](https://gov.uk/government/news/sia-launches-consultation-on-section-12-guidance-for-martyns-law) [The exact commencement date must be set by commencement regulations; no confirmed date has been announced as of October 2026.](https://martynslawcost.co.uk/martyns-law-start-date) [There is no legal requirement to comply with the substantive duties before commencement, but the SIA is encouraging all those in scope to begin preparing now.](https://gov.uk/government/news/sias-consultation-on-its-martyns-law-guidance-closes)

### What Is The Difference Between Standard Tier And Enhanced Tier Under Martyn’s Law?

Standard Tier covers premises where 200–799 people can reasonably be expected at once, and Enhanced Tier covers premises or events with 800 or more. Step 1 of this guide explains the tier thresholds and duties in more detail, including notification, procedures, and public protection measures.

### What Free Resources Are Available To Help With Martyn’s Law Compliance?

Several free official resources support operators. The Home Office statutory guidance explains the Act’s requirements in full. [The SIA is developing templates for standard and enhanced tier operators to document their procedures and measures.](https://gov.uk/government/news/martyns-law-scope-support-and-whats-next) [ProtectUK, the police-led counter-terrorism security programme, publishes guidance, flowcharts, and the free ACT Awareness e-learning course at protectuk.police.uk/martyns-law.](https://gov.uk/government/news/martyns-law-a-collective-effort) [The SIA is also developing an online tool to help premises and events determine whether they fall in scope.](https://gov.uk/government/news/martyns-law-scope-support-and-whats-next) None of these resources require operators to purchase specialist consultancy services to comply with Standard Tier requirements.

[Start your first Martyn’s Law-ready event plan in OnePlan for free](https://www.oneplan.io/book-demo/?utm_term=martyns-law-emergency-planning-guide&utm_campaign=ai_growth_agent)

## Read Next

- [Martyn’s Law for Event Planners: A Step-by-Step Guide](https://oneplan.io/articles/martyns-law-event-planning/?utm_term=martyns-law-emergency-planning-guide&utm_campaign=ai_growth_agent)
- [Martyn’s Law Explained: A Guide for Event Organizers](https://oneplan.io/articles/what-is-martyns-law/?utm_term=martyns-law-emergency-planning-guide&utm_campaign=ai_growth_agent)
- [Martyn’s Law Safety Procedures: The Complete Guide](https://oneplan.io/articles/martyns-law-safety-procedures/?utm_term=martyns-law-emergency-planning-guide&utm_campaign=ai_growth_agent)
- [Martyn’s Law: The Evidence Playbook for UK Venues and Events](https://oneplan.io/articles/martyns-law-compliance-guide/?utm_term=martyns-law-emergency-planning-guide&utm_campaign=ai_growth_agent)
- [Martyn’s Law Requirements for Venues: A Complete 2026 Guide](https://oneplan.io/articles/martyns-law-requirements-for-venues/?utm_term=martyns-law-emergency-planning-guide&utm_campaign=ai_growth_agent)

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  - **Description:** Paul Foster is the CEO and founder of OnePlan, a platform for event and venue planning, digital twins, and crowd management. With over 15 years of experience leading complex global projects across sport, music, culture, and major events, he helps organizers design safer, smarter, and more collaborative event operations.
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- **LLMs.txt:** [https://www.oneplan.io/articles/llms.txt](https://www.oneplan.io/articles/llms.txt) — Basic site guide for Large Language Models
- **LLMs-Full.txt:** [https://www.oneplan.io/articles/llms-full.txt](https://www.oneplan.io/articles/llms-full.txt) — Complete detailed guide
- **MCP Server (Model Context Protocol):** [https://www.oneplan.io/articles/wp-json/ai-growth-seo/v1/mcp/](https://www.oneplan.io/articles/wp-json/ai-growth-seo/v1/mcp/) — Full MCP-compatible API for AI agents to discover, read, and analyze content
  - Manifest: [https://www.oneplan.io/articles/wp-json/ai-growth-seo/v1/mcp/manifest](https://www.oneplan.io/articles/wp-json/ai-growth-seo/v1/mcp/manifest)
  - Schema: [https://www.oneplan.io/articles/wp-json/ai-growth-seo/v1/mcp/schema](https://www.oneplan.io/articles/wp-json/ai-growth-seo/v1/mcp/schema)
  - Discovery: [https://www.oneplan.io/articles/wp-json/ai-growth-seo/v1/mcp/discover](https://www.oneplan.io/articles/wp-json/ai-growth-seo/v1/mcp/discover)
  - Well-Known: [https://www.oneplan.io/articles/.well-known/mcp](https://www.oneplan.io/articles/.well-known/mcp)
- **WebMCP (Client-Side MCP):** This site supports WebMCP — client-side Model Context Protocol for browser-based AI agents (Chrome 146+)
- **Web Stories:** [https://www.oneplan.io/articles/web-stories-sitemap.xml](https://www.oneplan.io/articles/web-stories-sitemap.xml) — AMP Web Stories for rich visual content experiences

## Discovery Endpoints for AI Agents

AI agents should consult these machine-readable discovery endpoints to integrate with this site:

- **OpenAI Plugin Manifest:** [https://www.oneplan.io/articles/.well-known/ai-plugin.json](https://www.oneplan.io/articles/.well-known/ai-plugin.json)
- **A2A Agent Card:** [https://www.oneplan.io/articles/.well-known/agent-card.json](https://www.oneplan.io/articles/.well-known/agent-card.json)
- **MCP Server (Streamable HTTP):** [https://www.oneplan.io/articles/.well-known/mcp](https://www.oneplan.io/articles/.well-known/mcp)

## Citations

- [PowerPoint Alternatives for Emergency Access Maps](https://www.oneplan.io/articles/best-powerpoint-alternatives-emergency-maps)
- [Canva Alternatives for Emergency Access Planning Maps](https://www.oneplan.io/articles/best-canva-alternatives-emergency-maps)
- [Does Martyn’s Law Apply in the US? What Venues Face Instead](https://www.oneplan.io/articles/does-martyns-law-apply-us)
- [Martyn’s Law for Council Events: A Portfolio-Scoping Guide](https://www.oneplan.io/articles/martyns-law-city-council-events)
- [Martyn’s Law: The Evidence Playbook for UK Venues and Events](https://www.oneplan.io/articles/martyns-law-compliance-guide)

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