--- title: 'Martyn''s Law SIA Notification: The 3-Month, 28-Day and 14-Day Deadlines' description: 'SIA notification deadlines under Martyn''s Law: the three-month opening window, the 28-day premises rules, the 14-day event rules, and the data to gather now.' source: Duty Room source_url: https://dutyroom.com published_on: '2026-08-04' updated_on: '2026-08-04' market: uk sectors: - all canonical_url: https://dutyroom.com/uk/briefings/martyns-law-notification-deadlines --- # Martyn's Law SIA Notification: The 3-Month, 28-Day and 14-Day Deadlines SIA notification deadlines under Martyn's Law: the three-month opening window, the 28-day premises rules, the 14-day event rules, and the data to gather now. You can't notify the SIA today. The portal isn't open, the duty isn't in force, and no one has to file anything under Martyn's Law yet. The rules published in July 2026 now set the deadlines and the information the SIA will ask for. The [Notification Requirements Regulations](https://www.legislation.gov.uk/uksi/2026/793/made) were laid on 14 July, and the Home Office published its [notification guidance](https://www.gov.uk/government/publications/terrorism-protection-of-premises-act-2025-notification-requirement/terrorism-protection-of-premises-act-2025-notification-requirement-accessible) the same day. Three notification deadlines apply: three months, 28 days, and 14 days. The trigger depends on whether the notification concerns premises or a qualifying event, and on when responsibility, publicity, or information changes. ## The deadline table The notification requirement comes into force after 3 April 2027. The exact date has not been set; the [SIA says it is working toward spring 2027](https://www.gov.uk/guidance/understanding-martyns-law-and-the-sias-role-as-regulator). | Trigger | Deadline | |---|---| | Responsible for qualifying premises on commencement day | Before the end of three months beginning with commencement day | | Become or cease to be responsible for premises during the opening three months | The later of the end of that three-month period or the end of 28 days beginning with the change | | Become or cease to be responsible for premises after the opening period | Before the end of 28 days beginning with the change | | Notified premises information first becomes inaccurate | Before the end of 28 days beginning with that day | | Event to be held after commencement whose date was first publicised on or before commencement | Before the end of 14 days beginning with commencement day | | Event date first publicised after commencement | Before the end of 14 days beginning with the publicity date | | Cease to be responsible for a qualifying event | Before the end of 14 days beginning with cessation, whether or not the initial notification was filed | | Notified event information first becomes inaccurate | Before the end of 14 days beginning with that day | | Event took place before commencement | No notification | "First publicised" means the event date was first made available to members of the public for advertising by, or with the authority of, a responsible person. Public websites and social accounts count. So do club announcements and emails to customer mailing lists. Unreleased materials, communications that are not publicly accessible, and unauthorised disclosures do not start the clock. A change of responsible person does not create a new publicity date. Information filed by a previous responsible person is covered by the correction deadlines for premises and events. Each occurrence that is itself a qualifying event needs its own notification. ## Who can press submit The responsible person can authorise someone else, including an employee, agent, or consultant, to submit on their behalf. Legal responsibility stays with the responsible person, and the Home Office recommends recording who was authorised, when, and how. The submitter confirms either that they are the responsible person or that the responsible person authorised them. If someone else submits, the form also asks for their name, role, relationship to the responsible person, and contact details. Every submitter confirms that they understand it is an offence under section 25 to knowingly or recklessly provide false or misleading information. The standard field list is not exhaustive. The SIA may request other information it reasonably needs about the premises, event, or anyone who controls either. ## The data checklist The Schedule groups the prescribed fields. Every notification needs: - every responsible person, with contact details, registered and trading names, and any company or charity number - anyone else with any control over the premises or event: their name, contact details, and relationship to the responsible person - the name and contact details of anyone the responsible person must coordinate with under the Act - confirmation that the submitter is the responsible person or is authorised by one, and that they know about the section 25 offence; if someone else submits, their name, role, relationship, and contact details - the postal address and postcode of the qualifying premises or the place where the event will take place, and whether the responsible person is responsible for other qualifying premises or events - the greatest number of people reasonably expected at the same time, and how it was calculated - every website and social account, under the control of the responsible person or anyone else with control, used to advertise the premises or event - alcohol licences and temporary licences or notices (TENs in England and Wales), entertainment permissions, and sports-ground or regulated-stand [safety certificates](https://dutyroom.com/uk/martyns-law/sports-grounds). For each category, the form asks whether the premises or event has the authorisation, an application has been submitted, or notice has been given. If it is in force, the form asks for its description, dates, and issuing authority (or, for a TEN, the authority that received the notice) ### Premises Premises notifications confirm that the premises qualify under section 2 and state the [Schedule 1 use](https://dutyroom.com/uk/martyns-law). They record whether the premises are a group of buildings and, if so, how many buildings the group contains. Where the qualifying premises have more than one address and postcode, the notification records the address of each building. If they form part of larger premises, the form asks for the larger premises' name and address and whether they also qualify. It also asks about permanent or temporary seating in an adjoining area, including seating on the pavement or road. ### Events Event notifications confirm that the event qualifies under section 3 and give the event dates and times, the date and time of first admission, and a description. If it is part of a larger event, the form asks for details and, where known, that event's separate notification and SIA reference. It also asks, where known, whether the host premises qualify, their tier, and their SIA reference. If the same event has run before, the form asks when it last ran, whether it used the same premises and the other address if not, whether its name or branding was the same, and the name and contact details of whoever was responsible for that occurrence. The form also asks whether the event will repeat and for the date and format of first publicity. Website publicity needs the address; social media needs the platform and account. ### Enhanced-duty premises and qualifying events Where a senior individual has been designated, the notification must include their name, contact details, position, and designation date. Every notification for enhanced-duty premises or a qualifying event must also confirm that the senior individual, or the responsible person if none is designated, understands the compliance-document duties. Two answers usually take the longest to assemble. The capacity figure needs its method, which is why the [capacity assessment](https://dutyroom.com/uk/briefings/martyns-law-capacity-threshold) is worth keeping on file. Every licence, notice, permission, or certificate in force needs its description, dates, and issuing authority, or the receiving authority for a TEN. Operators who keep those records together will fill the form from a record. Everyone else will fill it from a drawer. The Home Office's July 2026 central estimate is 160,768 qualifying premises: 139,530 standard tier and 21,238 enhanced, plus about 975 qualifying-event occurrences a year, each requiring its own notification. The true premises count will not be known until notifications start arriving. ## A notification is not a compliance document A complete and accurate notification, made in the required form and on time, satisfies the notification duty. It does not show that the procedures, measures, or compliance-document duties have been met. The Home Office's [economic note](https://www.gov.uk/government/publications/terrorism-protection-of-premises-act-2025-notification-requirement-economic-note) identifies the risk that operators may mistake notification for compliance. Standard-tier premises have the notification duty, including the correction deadlines above, and the four procedures, but no statutory duty to prepare or submit a compliance document. Enhanced-tier premises and qualifying events must also prepare one, give it to the SIA as soon as reasonably practicable, and provide any revision within 30 days. The SIA says it will share templates before commencement. Its inspections will check that declared procedures are in proper use and familiar to the people who rely on them. Our SIA inspection briefing covers that work. ## Records to prepare before the portal opens Nothing can be filed yet, and the SIA plans to test the portal with volunteers in early 2027. The prescribed fields are already set out, but the portal is not yet available and practical filing instructions have not been published. The prescribed fields define the preparation record: the submitter and any authorisation; every responsible person, anyone else with control, and the people they must coordinate with; the capacity figure and its method; licence, notice, permission, and certificate details; and the websites and social accounts used to advertise each premises or event. Hire agreements and franchise arrangements can blur the responsibility, control, and coordination lines. The record therefore needs a named maintainer after the first filing. Duty Room's [Martyn's Law area](https://dutyroom.com/uk/martyns-law) gives that record a home: the notification data, capacity method, procedures, and authorisation details kept per premises, versioned, and ready to read when the portal opens. The Home Office's model puts reading the guidance and filing at about 33 minutes once the answers are ready. Knowing the answers is the part operators can start today. --- Published by [Duty Room](https://dutyroom.com/uk/), software for organizing, tracking, and evidencing operational compliance.