3.1 Intended objectives and benefits of introducing a new BSS Requirement
There are two intended objectives in the introduction of the proposed new BSS requirements.
Firstly, it is intended to help prevent the risk of fire developing and spreading to harm other people and property beyond the confines of the boat on which the fire started.
Secondly, even where a boat is isolated and the fire does not spread, the timely attendance of a fire crew can mean a boat remains floating with minimised damage, consequently it does not cause a hazard to navigation or a pollution threat for a time following the fire until removal of the wreck.
The key additional recognised benefits beyond the regulatory target are
a) the enhanced protection will also help protect the crew. We are not aware of any fatal boat fires where there was an alarm fitted or activated to alert the victim aboard
b) reduce the amount of damage a fire causes to the boat and allow it to be recovered and repaired.
In addition, we also believe it will help prevent harm from fire including fatalities and injuries to tenants, and others new to living aboard boats, who may be more exposed to this risk, perhaps through their lack of boat-dwelling experience, thus ignorant of fuel-related fire risks and lack of control over the maintenance and replacement of appliances.
Additional benefits beyond the regulatory intention
Based on the previous 10-year history of 13 boat fatalities (2014-2024), the overall effect is estimated that the next 20 years could see a reduction down to one fatal boat fires every ten years. This aspiration will be heavily dependent on the level of compliance with a new mandatory smoke alarm requirement and the effectiveness of associated additional support measures and partnership awareness-raising initiatives.
3.2 Potential unintended consequences of introducing the new proposals
The best protection for boaters is to prevent fire from occurring through the proper installation of appliances, good and regular maintenance and running them according to the instructions from the supplier. Smoke alarms do not align with this strategy. An alarm’s role is to provide an extremely critical backstop protection with robust method of detecting fire should it break out, making people aware of the fire and prompting relevant actions.
Boaters should also understand how to make and activate a fire action plan involving all crew members. Smoke alarms cannot be considered a primary form of protection, but as above they can act as a call to action to evacuate the boat, call for fire service help, evacuate the immediate surroundings, thus removing people and property from potential transmittable harm (radiated heat, fire and/or smoke).
However, a possible unintended consequence of the introduction of smoke alarms could be that the presence of alarms may cause a small minority of boaters to relax primary safety standards, as referred to above, and by inference, increase the risk of dangerous conditions occurring.
Additional factors that may lead to no reduced harm occurring, include:
· boat crew/occupants’ failing to act appropriately upon an alarm activation;
· incapacity through drugs or alcohol;
· failure to replace an alarm when damaged and/or at life expiry or battery expiry;
· installing an inappropriate, poor quality or non-functioning alarm.
3.3 What alternatives to introducing mandatory new BSS Requirements were considered?
Introduce BSS ‘Advice Checks’ – advice checks are considered inappropriate because the circumstances fall within the criteria for mandatory compliance, i.e. reducing the risk of the spread of fire for the protection of people outside the boat.
Do nothing – considered but rejected as the recently collected evidence that went through the BSS Risk Review and Assessment process is compelling and the BSS and Navigation Authorities would be exposed if they disregarded evidence, and if the BSS failed to take account of advice from its stakeholders and competent advisors who fully support the proposals.
Rely only upon safety awareness campaigns - Reliance upon co-ordinated campaigns aimed at raising awareness is not considered a fully effective strategy. Research by the BSS based on field observations of voluntary smoke alarm installation (Sep 21-Sep 22) showed that nationally, only 46% of boats had working smoke alarms. (Canal river Trust 53%, Environment Agency 25%, Broads Authority 23%) there are links to more detail on this web page www.boatsafetyscheme.org/about-us/consultations-reviews/smoke-alarm-surveys//
There had been a robust campaign for voluntary carbon monoxide (CO) alarm adoption in the decade leading up to 2019. In April of that year the mandatory requirement for CO alarms was introduced by the BSS and CO alarm adoption rose from 68% to 92% within two years.
Further compliance options: consideration was given to including heat alarms third-party accredited certified as meeting BS 5446-2:2003, as a potential alternative to suitable smoke alarms.
We consulted on this possibility with the National Fire Chiefs Council (NFCC) and Fire Industries Association (FIA).
The view of NFCC is that heat alarms are recommended in the galley for added protection but should not be regarded as a direct replacement for smoke alarms. The FIA also endorses the NFCC advice to fit a heat detector in the galley area of boats as guidance.
There is further information on why heat alarms are not considered to in section 4 of this document.
In conclusion, the option to introduce mandatory new BSS Requirements is the proportionate means to address the risk of fire spreading and has full stakeholder support and is the sole recommendation presented.
3.4 The cost impact of introducing new BSS Requirements
The following assumptions are presented:
a. Approximately 90,000 boats are subject to the BSS in any four-year period. Extracting the numbers of hire boats and non-private boat classes (combined 3,100) So, based on a national average as found by the BSS in its survey on the use of smoke alarms in boats, there will be of 52% of 86,900 boats in scope having no suitable smoke alarm in good condition installed. This equates to 45,188 private boats affected.
b. Note: the figure of 52% accounts for 2% (1800) of boats had alarms but were not working. We have no indication as to the reason the alarm failed to work when tested, such as the battery being disconnected, or the whole unit not functioning and needing replacement. But we will assume the majority only require battery replacement at minimal cost.
c. Assuming each alarm costs £15 inc. VAT, at least one-third of the 27 optical smoke alarms certificated to BS EN 14604 with a 10-year life, or 10-year warranty were for sale at £15 or under in a BSS survey of six high-street, trading estate and online retail suppliers in December 2025. While not included in the survey, twin and multiple alarm packs reduced the unit cost.
d. One alarm is generally sufficient to meet the BSS minimum safety requirement. However, two or more may be required if separate accommodation spaces are separated by doors and are more than 10m from an alarm.
e. Each sealed lithium battery alarm will have a lifespan of seven to ten years dependent upon battery health. Devices using replaceable batteries generally have a ten-year lifespan (Sources: Cheshire Fire & Rescue, Safelincs, First Alert, Fire Angel).
f. No installation costs are taken into account because the securing options from small screws to sticky pads are relatively minimal.
g. The estimated 46% of boats with existing smoke alarms will likely have alarms compliant with the proposed new BSS requirements. A further 2% of non-working alarms will need batteries installing.
h. The proposed new BSS Requirements will follow most of the criteria of the existing hire boat requirements for smoke alarms for craft with overnight accommodation, namely:
• Smoke alarms must be supported with a certification of an accredited certification body to BS EN 14604:2005 or equivalent.
• Alarms must be provided with a test function button.
• Alarms must be in good working condition
The following costs are estimated:
a) The following scenarios are based on a reasonable estimation on the lifespan of a smoke alarm. The model is based on a domestic alarm with a warranted 10-year lifespan. The alarm manufacturers have advised that an alarm may not last the claimed lifespan due to the more challenging environmental and operating conditions found aboard boats. Therefore, in this section, we are using the estimated lifespan of seven years.
Additional costs to boat owners/operators - £677,820 (45,188 boats x £15 each boat), this also equates to an average outlay of £2.14 per year per boat, over a seven-year lifespan of the alarm.
Focussing on hire operators specifically, it is estimated that there are currently around 2400 boats registered for weekly hire, which are already required to have smoke alarms. There will likely be an estimated 240 day-hire boats (10 percent) with cabins, not already having smoke alarms, brought into scope £3,600 (240 x £15 each boat), this could equate to a new outlay of £2.14 per year per boat over seven years.
Additional costs to the owners of other classes of non-private boats subject to the BSS. These are the workboats, hotel boats, floating cafes, etc, estimated at around 700 boats. It is estimated that smoke alarm uptake will likely be already high in this class, so we make an assumption that two-thirds of the non-private fleet already have smoke alarms installed.
The total fleet cost is estimated at £2,935 (233 x £15 each boat), which equates to a new outlay of £2.14 per year over seven years.
b) Will there be additional BSS Examiner charges for their boat owners/operator customers? – it is possible that examiners will charge more for the added time taken to carry out the additional checks. Examiners operate in a free market regarding their charges. However, the extra time taken to conduct the proposed checks is minimal.
c) Additional costs to the BSS – no additional costs, only normal operating costs in support of consultation, implementation, promotion and review.
d) Additional costs to BSS Examiners – it is intended that training to the proposed new checks will take place online. As such any training costs will be minimized for BSS Examiners.
e) Additional cost to navigation authorities - Direct cost to the Navigation Authorities may arise for amending registration, licensing or other conditions and any information to reflect the change in requirements.
3.5 The importance of fire safety awareness raising and other BSS activities
The Scheme is keen to stress that its proposal to introduce a Boat Safety Standard (supported by new BSS Requirements) for smoke alarms on all classes of boat with accommodation spaces should be seen in a wider context of other related activity that will be taking place, often with the assistance of strategic partners.
Clear guidance and safety awareness information remains paramount. In the event of a successful consultation, initial messages will emphasise:
· the recommended types of smoke alarm, and
· where to fit them will be promoted, and
· the importance of pushing the test-button routinely, and
· the actions to take if the alarm activates, and
· the need to make a fire action plan
· the need to know how fire extinguishers should be used and when not to use them
The navigation and harbour authorities together with the BSS will continue to support partnership initiatives aimed at influencing behaviour concerning the selection, maintenance and use of appliances.
The focus will be on fire safety awareness efforts targeted towards those boaters considered to be at heightened risk, i.e. ‘hard to reach’ vulnerable live-aboard boaters and those that are boat users who are new to boating and may or may not fall into the vulnerable category, but who may not have a full understanding of the risks.
Acting on the navigation and harbour authorities’ behalf, the BSS will promote through British Standards Institution committees, a policy for smoke alarms to feature within a relevant clause of the Recreational Craft Regulations supporting standards.
Our aim will be to share as we learn and hence drive safety forward through a constant improvement process.