What does BS 5306 cover?
BS 5306 provides technical codes of practice for fire extinguishing equipment. For portable extinguishers, the key parts cover commissioning and maintenance, selection and positioning, and recharging.
Workplace compliance also depends on the relevant fire-safety law, the premises’ risk assessment and the equipment’s instructions. This guide helps a responsible person organise those responsibilities without treating a service sticker as proof that the whole site is safe.
Standards and law have different jobs.
The standard helps define competent technical practice. The applicable legislation establishes legal duties.
England and Wales
For premises within the scope of the Regulatory Reform (Fire Safety) Order 2005, the responsible person must assess fire risks and put suitable precautions in place. Article 13 addresses firefighting measures where necessary; Article 17 addresses maintenance. Article 18 deals with competent assistance for preventive and protective measures.
The Order does not turn every sentence in BS 5306 into a separate statutory offence. Following recognised standards can support the approach taken, but the premises and actual risks still matter.
Scotland and Northern Ireland
Scotland uses the Fire (Scotland) Act 2005 and Fire Safety (Scotland) Regulations 2006 for most non-domestic premises. Northern Ireland uses the Fire and Rescue Services (Northern Ireland) Order 2006 and Fire Safety Regulations (Northern Ireland) 2010.
Use the guidance for the location and premises type. A UK-wide article should not describe the England and Wales Fire Safety Order as the law for every UK site.
Standards are generally voluntary technical documents, although a contract, specification or insurance policy can require a particular standard. If an alternative approach is proposed, obtain a reasoned, competent assessment and check the applicable terms. An SEO article cannot establish whether that alternative is suitable for a particular building.
Which part answers which question?
These are the current published editions checked for this guide.
| Reference | What it covers and how you use it |
|---|---|
| BS 5306-3:2017 | Commissioning and maintenance of portable fire extinguishers. Use it when specifying initial checks, ongoing servicing and the maintenance regime. |
| BS 5306-8:2023 | Selection and positioning of portable fire extinguishers. Use it alongside the fire risk assessment to consider types, ratings, distribution, access and siting. |
| BS 5306-9:2015 | Recharging of portable fire extinguishers, including the relevant components and extinguishing media. Recharging is specialist work, separate from routine user checks. |
| BS EN 3 series | Product characteristics, performance and testing. A product conformity claim does not establish that it has been correctly selected, installed or maintained at your premises. |
The BS 5306 series covers more than portable extinguishers, so quoting “BS 5306 compliant” without the part or scope can be vague. Ask which work has been completed and what evidence supports it.
Use the full applicable standard for detailed design and technical decisions. Public summaries are not enough to verify every travel distance, mounting arrangement or special case. Avoid applying a single distance or extinguisher-per-area rule across every hazard.
For the initial equipment checks, read our commissioning guide. For a site-wide review, see extinguisher surveys and compliance audits.
Build a maintenance programme.
Routine site checks, technical servicing and additional maintenance each have a role.
Keep equipment available
Check that extinguishers are where expected, accessible and identifiable. Investigate damage, broken seals, apparent discharge or missing units.
Arrange competent servicing
Plan the appropriate service visits and track the equipment. Give the technician access to the units, previous records and any known problems.
Act on the findings
Record defects, agree corrective work, maintain suitable fire cover and check that actions have actually been completed.
| Conventional extinguisher type | Common BS 5306 maintenance intervals |
|---|---|
| Water-based and standard powder | Basic service at least annually; extended service normally every five years. |
| Primary-sealed powder | Basic service at least annually; extended service normally every ten years. |
| CO₂ | Basic service at least annually; overhaul normally every ten years. |
Check the actual model: these common intervals are not a universal replacement timetable. Condition, manufacturer instructions and the equipment’s specific maintenance regime must be considered. Products such as P50 have distinct arrangements; follow their documented instructions rather than applying a conventional-service table automatically.
BAFE’s published guidance recommends visual inspections at least monthly, with more frequent checks where circumstances require. Those checks do not replace the planned competent-person service. Equally, a service completed last week cannot deal with an extinguisher that is missing or damaged today.
Additional attention may be required after discharge, damage, environmental exposure or a change in use of the premises. A damaged or suspect unit should be assessed promptly, with appropriate fire cover maintained. See our extinguisher maintenance service or the separate P50 information for the relevant route.
What should a site review look at?
A useful review connects the equipment to the building and to the people managing it.
Coverage and access
Check the extinguisher provision against the current fire risk assessment. A new process, changed storage, partition, altered escape route or new tenant can change the assumptions behind an earlier installation.
Look at types and ratings, distribution, clear access, identification and the surrounding conditions. A recently serviced extinguisher can still be poorly located or unsuitable for the hazard beside it.
Condition and maintenance
Compare the physical units with the service records. Follow up unidentified equipment, absent labels, overdue work and any defect that has not been resolved. Ask what the proposed action is and who is responsible for completing it.
Competence and scope
Confirm what the provider is competent to do: selection, commissioning, servicing, recharging and a premises review are different elements. BAFE SP101 is one recognised way to demonstrate relevant third-party-assessed competence. Verify any claimed registration and its scope.
People and arrangements
Staff need appropriate fire-safety information and training for their roles and risks. Avoid treating a single annual extinguisher-training interval as a universal legal rule. Review arrangements when people, activities or risks change.
An extinguisher survey also has a defined scope. It does not automatically replace the fire risk assessment, which considers broader matters such as escape, detection and the people at risk.
Make the records useful.
The aim is to show what is present, what was checked, what was found and what happened next.
| Record | Information worth being able to retrieve |
|---|---|
| Equipment register | An identifier, location, extinguisher type and relevant manufacture or maintenance information that can be matched to the physical unit. |
| Commissioning and service reports | The site, date, provider, equipment covered, work performed, findings and planned follow-up. |
| Routine visual-check log | Who checked, when, exceptions found and who was told. Use a format the site team can consistently maintain. |
| Defect and action record | The affected unit, required action, owner, target date and evidence of completion. An unresolved recommendation is still unresolved when the report is filed. |
| Premises and provider information | Current fire risk assessment, relevant plans, agreed service scope, provider competence evidence and applicable insurer or contract conditions. |
Agree a retention period with your organisation, considering applicable legal, contractual, insurer and record-management requirements. Do not assume every extinguisher document has a universal five-year statutory retention period.
Keep records accessible through staff or contractor changes. For multiple premises, use consistent identifiers and named owners so a report for one site cannot be mistaken for evidence about another. Digital or paper formats can both be useful if the information remains legible and traceable.
Questions to take into your next review.
Use these prompts to find information gaps before speaking to your provider.
This list organises a discussion. It does not produce a compliance score or replace a competent assessment.
BS 5306 questions.
Clear distinctions help you ask for the right work.
Is BS 5306 law?
It is a series of technical standards. The relevant fire-safety legislation creates legal duties; standards can support the methods used to meet them and may be required by a contract or insurance condition.
Does a service certificate prove the whole building is compliant?
No. It records the scope and outcome of the work performed. It does not on its own establish suitable coverage, resolve every defect or demonstrate that all wider fire-safety duties have been met.
Must every extinguisher be replaced after five years?
No. Five years is a common extended-service point for certain conventional types, not a universal disposal date. The appropriate action depends on the type, condition, instructions and applicable maintenance regime.
Does buying a BS EN 3 extinguisher complete the job?
No. Product performance is only one part of the arrangement. The unit must also be suitable for the premises, properly installed, commissioned as appropriate and maintained.
Will an overdue service automatically invalidate insurance?
That cannot be stated for every policy. Check the actual policy terms and notify the appropriate person or adviser about any breach or uncertainty. Resolve maintenance issues promptly rather than relying on assumptions about cover.
Is an extinguisher audit the same as a fire risk assessment?
No. An extinguisher audit examines a defined equipment-related scope. The wider fire risk assessment considers the premises, people, hazards and overall fire precautions. Confirm what each commissioned service includes.
Need a clearer picture of your site?
Velocity Safety can review extinguisher provision, condition and records and explain the corrective work identified.
- Premises type and location
- Equipment list and previous reports
- Changes, concerns or unresolved actions
Sources and technical references
- BSI: BS 5306-3 current edition
- BSI: BS 5306-8 current edition
- BSI: BS 5306-9 scope and current edition
- Fire Safety Order 2005
- Government: workplace fire-safety duties
- Scottish Government: non-domestic fire safety
- NIFRS: business fire safety
- BAFE: published maintenance intervals
- BAFE: SP101 scope and competence
- Government business guidance: status of standards
- Britannia: P50 manufacturer information
Sources checked 4 November 2026. Exact technical clauses and any proposed departures require the applicable full standards and competent advice for the premises.
