# Martyn’s Law Permit Requirements: How to Notify and File

> Learn who's liable under Martyn's Law, how to notify the SIA, and what to file. OnePlan helps you stay compliant with every requirement.

**Published:** 2026-09-25 | **Updated:** 2026-10-31 | **Author:** oneplansync
**URL:** https://www.oneplan.io/articles/martyns-law-permit-requirements
**Type:** post

**Categories:** Event safety and compliance

![Martyn’s Law Permit Requirements: How to Notify and File](https://oneplan.sites.aigrowthagent.co/wp-content/uploads/sites/80/2026/09/1788789535165-092a6593e678-1024x572.webp)

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## Content

*Written by: Paul Foster, Founder, CEO, OnePlan | Last updated: October 10, 2026*

## Key Takeaways

- Martyn’s Law establishes a notification regime. Qualifying premises and events notify the SIA through an online portal instead of applying for approval.
- Premises with 200+ capacity and events with 800+ capacity fall in scope, with duties split between standard and enhanced tiers.
- Capacity is the greatest number of individuals reasonably expected at the same time, including staff and contractors, and the method must be documented.
- The responsible person keeps legal liability even when tasks are delegated, and enhanced-tier organisations must designate a senior individual.
- OnePlan provides a crowd-capacity calculator, to-scale site plans, and exportable evidence that venues and events can use to meet Martyn’s Law requirements.

[Book a demo with OnePlan](https://www.oneplan.io/book-demo/?utm_term=martyns-law-permit-requirements&utm_campaign=ai_growth_agent)

## How to Tell If You’re in Scope: Qualifying Premises and Qualifying Events

[Qualifying premises under section 2 of the Act must meet four criteria](https://gov.uk/government/publications/the-terrorism-protection-of-premises-act-2025/terrorism-protection-of-premises-act-2025-statutory-guidance):

- The site meets the Act’s definition of premises (a building, or a building and other land).
- The premises are wholly or mainly used for one or more Schedule 1 uses (shops, food and drink, entertainment and leisure, sports grounds, hotels, places of worship, health care, education, and others).
- It is reasonable to expect 200 or more individuals may be present at the same time, from time to time.
- The premises are not excluded under Schedule 2 (which covers open-access parks, certain transport premises, and legislatures).

[A qualifying event under section 3 must meet six criteria](https://gov.uk/government/publications/the-terrorism-protection-of-premises-act-2025/terrorism-protection-of-premises-act-2025-statutory-guidance):

- It takes place at premises within the statutory definition.
- The premises are not already enhanced-tier.
- The event is accessible to the public.
- 800 or more individuals may reasonably be expected at the same time at some point during the event.
- Measures exist to check that attendees satisfy an entry condition (ticket, pass, membership, or payment).
- The event is not at excluded premises.

A worked scenario helps make this concrete. [A pub that regularly hosts 200 or more individuals at a time over the weekend is in scope of the standard tier](https://gov.uk/government/publications/the-terrorism-protection-of-premises-act-2025/non-statutory-supplementary-document-b-scope-illustrative-examples-accessible), even if weekday numbers are lower, because it can anticipate that level of attendance again. A one-off 1,000-person ticketed event at a non-enhanced-tier warehouse is a qualifying event, with the organiser as the responsible person.

Size is not the only factor. [Certain premises remain in the standard tier regardless of size](https://petersandpeters.com/2026/05/28/martyns-law-statutory-guidance-published-by-the-home-office), including places of worship, childcare settings, and most educational establishments.

## How Is Capacity Counted Under Martyn’s Law?

The test is the greatest number of individuals reasonably expected to be present at the same time, from time to time. [Staff, contractors, volunteers, and visitors all count](https://gov.uk/government/publications/the-terrorism-protection-of-premises-act-2025/terrorism-protection-of-premises-act-2025-statutory-guidance). A venue that only crosses 200 on event nights is still in scope.

[For a group of buildings forming one qualifying premises, the numbers reasonably expected in each building at the same time must be added together](https://legislation.gov.uk/uksi/2026/793/made). For premises within premises, such as a unit in a shopping centre, the constituent numbers are added for the larger premises calculation.

The counting method matters because [the SIA notification must state the greatest number reasonably expected at the same time and the method used to calculate that figure](https://legislation.gov.uk/uksi/2026/793/made). A ticket cap alone is not sufficient. The Home Office’s non-statutory Supplementary Document A suggests methods, and the calculation must be documented and defensible.

Supporting evidence can include historic footfall data, fire occupancy figures, ticket and pre-registration records, fixed seating capacity, and room-by-room assessments. The figure you submit to the SIA is the figure you may need to defend to an inspector.

[OnePlan’s Evidence Playbook for UK Venues and Events](https://oneplan.io/articles/martyns-law-compliance-guide/?utm_term=martyns-law-permit-requirements&utm_campaign=ai_growth_agent) covers the full documentation trail in detail.

![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**

[Book a 15-minute demo to see OnePlan in action](https://www.oneplan.io/book-demo/?utm_term=martyns-law-permit-requirements&utm_campaign=ai_growth_agent)

## How to Notify the SIA: Deadlines, Contents, and the 28-Day Clocks

The notification process under [the Terrorism (Protection of Premises) (Notification Requirements) Regulations 2026 (SI 2026/793)](https://legislation.gov.uk/uksi/2026/793/made) follows a clear sequence.

**Who notifies:** The responsible person, or someone authorised to submit on their behalf. [Legal responsibility for complying with the Act cannot be delegated and remains with the responsible person](https://gov.uk/government/publications/terrorism-protection-of-premises-act-2025-notification-requirement/terrorism-protection-of-premises-act-2025-notification-requirement-accessible), even when an agent or consultant submits the notification.

**Where:** The SIA’s online notification portal, in the form the SIA requires, unless the SIA directs otherwise.

**Deadlines for premises:**

- Responsible persons on commencement day: notify within three months of commencement.
- Those who become responsible after commencement: notify within 28 days of becoming responsible.
- Inaccurate information: correct within 28 days of it becoming inaccurate.

**Deadlines for qualifying events:**

- Events first publicised on or before commencement day: notify within 14 days of commencement.
- Events first publicised after commencement day: notify within 14 days of first publicity.
- Inaccurate information: correct within 14 days of it becoming inaccurate.

[An event is treated as “first publicised” when its date is first made available to members of the public for advertising purposes, including where the date is first or solely made available to members or guests of a club or association](https://legislation.gov.uk/uksi/2026/793/made).

**What the notification must include:**

- Responsible person details (legal name, trading names, registered company or charity numbers).
- Confirmation that the premises satisfy the definition of qualifying premises and the relevant Schedule 1 use.
- Addresses and postcodes, and whether the premises consist of a group of buildings and how many.
- Details of any larger premises of which the site forms part.
- The greatest simultaneous number and the method used to calculate it.
- Licence and safety certificate details (alcohol licence, entertainment licence, general safety certificate, regulated stand safety certificate).
- For enhanced tier: the designated senior individual’s name, contact details, position, and date of designation, plus confirmation of compliance-document duties.
- For qualifying events: event dates and times, first admission time, a brief description, whether the same event has taken place before, and the date and format of first publicity.

[Knowingly or recklessly providing false or misleading information is an offence under section 25 of the Act](https://legislation.gov.uk/uksi/2026/793/made), and the notification form requires the submitter to confirm awareness of this.

## Standard Tier vs Enhanced Tier: What You Must Actually Do

The table below compares core obligations across standard and enhanced tiers so you can see where duties increase at 800 capacity.

| Requirement | Standard Tier (200–799) | Enhanced Tier (800+) |
| --- | --- | --- |
| Notify the SIA | [Yes, within 3 months of commencement](https://legislation.gov.uk/uksi/2026/793/made) | [Yes, within 3 months of commencement](https://legislation.gov.uk/uksi/2026/793/made) |
| Public protection procedures | [Evacuation, invacuation, lockdown, communication](https://gov.uk/government/publications/the-terrorism-protection-of-premises-act-2025/terrorism-protection-of-premises-act-2025-statutory-guidance) | [Evacuation, invacuation, lockdown, communication](https://gov.uk/government/publications/the-terrorism-protection-of-premises-act-2025/terrorism-protection-of-premises-act-2025-statutory-guidance) |
| Public protection measures | Not required | [Yes, monitoring, movement, physical safety and security, security of information](https://gov.uk/government/publications/the-terrorism-protection-of-premises-act-2025/terrorism-protection-of-premises-act-2025-statutory-guidance) |
| Compliance document to SIA | Not required | [Yes, as soon as reasonably practicable, with revisions within 30 days](https://legislation.gov.uk/uksi/2026/793/made) |

[Qualifying events are subject to the same requirements as enhanced tier premises](https://gov.uk/government/publications/the-terrorism-protection-of-premises-act-2025/terrorism-protection-of-premises-act-2025-statutory-guidance), except that event notifications must be submitted within 14 days of first publicity. Standard tier has no physical-security mandate. The four procedures must be in place and staff must be aware of them, and there is no requirement to purchase equipment or make physical alterations.

## Who Is the Responsible Person Under Martyn’s Law?

[The responsible person is the individual, organisation, or company with control of the premises for its Schedule 1 use, or control of the premises for the purposes of a qualifying event](https://gov.uk/government/publications/the-terrorism-protection-of-premises-act-2025/terrorism-protection-of-premises-act-2025-statutory-guidance). For a pub leased from a brewery, the tenant is the responsible person, not the brewery. For a festival held in a hired park, the event organiser is the responsible person for the duration of the event.

That designation carries more weight than it may first appear, because [legal responsibility for complying with Martyn’s Law cannot be delegated](https://gov.uk/government/news/martyns-law-a-collective-effort). Tasks can be assigned. An employee, agent, or consultant can prepare the notification, write the procedures, or manage the compliance document. The legal responsibility stays with the responsible person. If an agent submits the SIA notification on your behalf, you remain accountable for its accuracy and completeness.

[Where the responsible person for enhanced tier premises or a qualifying event is an organisation or company, a senior individual must be designated under section 10 of the Act](https://gov.uk/government/publications/the-terrorism-protection-of-premises-act-2025/terrorism-protection-of-premises-act-2025-statutory-guidance). That senior individual must be someone involved in the management or control of the responsible person. [The senior individual may face prosecution where an offence occurred with their consent, connivance, or neglect](https://petersandpeters.com/2026/05/28/martyns-law-statutory-guidance-published-by-the-home-office), although they are not liable merely for the organisation’s failure to comply.

The Home Office recommends keeping a written record of anyone authorised to submit notifications on the responsible person’s behalf, including when and how that authority was granted.

For a step-by-step walkthrough of emergency planning obligations, see OnePlan’s [Martyn’s Law Emergency Planning: A Step-by-Step Guide](https://oneplan.io/articles/martyns-law-emergency-planning-guide/?utm_term=martyns-law-permit-requirements&utm_campaign=ai_growth_agent).

[Book a demo to map your compliance evidence](https://www.oneplan.io/book-demo/?utm_term=martyns-law-permit-requirements&utm_campaign=ai_growth_agent)

## What Evidence To Keep For Martyn’s Law Compliance

Your evidence file should back up your notification, show how you manage risk, and stand up to Safety Advisory Group scrutiny.

**Scope and tier assessment:** A written record of why your premises or event is in scope, which tier applies, and the reasoning behind that conclusion.

**Attendance calculation:** The greatest simultaneous number, the method used to calculate it, confirmation that staff are included, and the supporting evidence (historic footfall, fire occupancy, ticket data, room capacities). This is the figure that goes into your SIA notification and the figure an inspector may scrutinise.

**Responsible person declaration and governance:** Legal and trading names, basis of control, effective dates, and, for enhanced tier organisations, the senior individual designation with date and position.

**Public protection procedures:** Documented evacuation, invacuation, lockdown, and communication procedures. At standard tier these must be in place and known to staff. At enhanced tier, a statement of the procedures travels inside the compliance document submitted to the SIA.

**Public protection measures (enhanced tier and qualifying events):** A schedule of measures across monitoring, movement, physical safety and security, and security of information, with an assessment of how each reduces vulnerability and risk of harm. [Sensitive site plans, CCTV coverage, and response arrangements should be stored securely with strict access controls](https://premisesportal.co.uk/martyns-law/required-documents), because the statutory guidance requires that compliance-document information be held in a way that minimises the risk of it helping someone plan an attack.

**Training records:** Who completed training, what it covered, and when. [The statutory guidance treats a record of staff training as a necessary element of the enhanced tier compliance document](https://gov.uk/government/publications/the-terrorism-protection-of-premises-act-2025/terrorism-protection-of-premises-act-2025-statutory-guidance).

**SIA notification log:** Submitted notifications, dates, references, acknowledgements, and any corrections made within the 28-day or 14-day clocks.

**To-scale site plans and crowd-capacity figures:** This is where OnePlan directly supports your compliance evidence. OnePlan is a visual, to-scale planning tool built on Esri GIS mapping technology. The crowd capacity calculator lets you outline any area and instantly see its standing capacity at a density you select, so your figure is documented rather than estimated. The calculator covers standing capacity only, not seated capacity. OnePlan exports print-ready maps up to A0 and Bill of Quantities reports. Both are suitable for Safety Advisory Group meetings, permitting submissions, and contractor coordination. OnePlan has powered 200,000 events in 150 countries. It is free to start for your first event (up to 25 objects), with paid plans from around $75 per month per seat and savings on annual payment.

![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**

For the complete evidence framework, see OnePlan’s [Martyn’s Law: The Evidence Playbook for UK Venues and Events](https://oneplan.io/articles/martyns-law-compliance-guide/?utm_term=martyns-law-permit-requirements&utm_campaign=ai_growth_agent) and [How to Comply With Martyn’s Law: A Step-by-Step Guide](https://oneplan.io/articles/martyns-law-venue-security/?utm_term=martyns-law-permit-requirements&utm_campaign=ai_growth_agent).

## Frequently Asked Questions

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

The Terrorism (Protection of Premises) Act 2025 received Royal Assent on 3 April 2025. The Home Office confirmed a minimum 24-month implementation period, and [the Security Industry Authority is planning for spring 2027 as the commencement date, pending confirmation via the parliamentary commencement process](https://gov.uk/government/publications/sia-strategic-plan-2026-to-2029/sia-strategic-plan-2026-to-2029). There is no legal requirement to comply before commencement, but the preparation window is open now.

### Does Martyn’s Law Require a Permit or Licence?

Martyn’s Law uses a notification model. Qualifying premises and qualifying events must notify the Security Industry Authority (SIA) through its online portal. The notification asks whether you hold existing licences, such as an alcohol licence or entertainment licence, and it does not replace or supersede them. No permit is issued and no approval is granted. The SIA receives your notification and registers you as in scope.

### What Is a Qualifying Event Under Martyn’s Law?

A qualifying event is a publicly accessible event at premises that are not already enhanced-tier, where 800 or more individuals may reasonably be expected to be present at the same time at some point during the event, and where meaningful entry checks are in place, such as ticket checks, payment gates, or membership verification. The event must have a well-defined, secure perimeter. Private events, such as weddings or corporate events for employees only, are not qualifying events, although they may take place at qualifying premises.

### Does Martyn’s Law Replace My Premises Licence or Fire Safety Duties?

The Terrorism (Protection of Premises) Act 2025 sits alongside other legislation. Responsible persons may also have obligations under health and safety law, fire safety legislation, licensing law, and the Equality Act 2010. The Martyn’s Law notification asks whether you hold relevant licences and certificates. It does not replace them, and all applicable legislation must be complied with independently.

## Conclusion: Get Your Notification and Evidence Ready

Martyn’s Law establishes a notification and compliance regime under the Terrorism (Protection of Premises) Act 2025. Qualifying premises notify the SIA within three months of commencement, and qualifying events notify within 14 days of first publicity. Obligations split at 200 and 800 capacity. Legal liability stays with the responsible person no matter who prepares or submits the paperwork.

The evidence trail, including your attendance calculation with its documented method, your public protection procedures, your training records, and your to-scale site plans, is what makes your compliance stand up to SIA scrutiny and Safety Advisory Group review. OnePlan gives venue operators and event organisers the crowd capacity calculator, to-scale site plans, and exportable map outputs that turn that evidence from an estimate into a defensible record. From a community hall working out whether it crosses the 200-person threshold to a stadium preparing an enhanced tier compliance document, the planning starts on a map.

[See how OnePlan supports Martyn’s Law compliance](https://www.oneplan.io/book-demo/?utm_term=martyns-law-permit-requirements&utm_campaign=ai_growth_agent)

## Read Next

- [Martyn’s Law: The Evidence Playbook for UK Venues and Events](https://oneplan.io/articles/martyns-law-compliance-guide/?utm_term=martyns-law-permit-requirements&utm_campaign=ai_growth_agent)
- [Martyn’s Law for Events: What Organisers Must Do](https://oneplan.io/articles/martyns-law-public-events/?utm_term=martyns-law-permit-requirements&utm_campaign=ai_growth_agent)
- [Martyn’s Law for Event Planners: A Step-by-Step Guide](https://oneplan.io/articles/martyns-law-event-planning/?utm_term=martyns-law-permit-requirements&utm_campaign=ai_growth_agent)
- [Martyn’s Law Emergency Planning: A Step-by-Step Guide](https://oneplan.io/articles/martyns-law-emergency-planning-guide/?utm_term=martyns-law-permit-requirements&utm_campaign=ai_growth_agent)
- [Martyn’s Law Safety Procedures: A Practical Compliance Guide](https://oneplan.io/articles/martyns-law-safety-procedures/?utm_term=martyns-law-permit-requirements&utm_campaign=ai_growth_agent)

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## 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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