CO Detectors in Florida: Rules for New Buildings and Additions

Last verified: August 26, 2026

Section 553.885 is a construction-date statute: it reaches new buildings and additions constructed on or after July 1, 2008 when combustion equipment or attached garages create CO risk. The statute sets baseline placement near sleeping rooms and delegates technical implementation to the Florida Building Code and Florida Building Commission process.

Existing buildings outside those construction triggers may be governed by other code pathways or local adoption choices, so owners should verify project scope and jurisdiction before assuming exclusion. Because statewide text does not provide one standalone CO penalty schedule, permitting, inspection, and correction notices are the main enforcement channels.

So the question a Florida owner arrives with, does this reach my building, turns on one date and one defined term. The date is 1 July 2008, and it runs to the separate building or addition rather than to the parcel. The defined term is "addition": alterations and repairs to an existing building do not pull it in, and work that qualifies as an addition does. A 1994 house getting a new gas furnace is outside the statute; the same house getting a new wing is inside it for that wing. That is the building-code half of the answer. The fire-code half now runs the other way: Fla. Stat. 633.202 adopts NFPA 101 by reference, Rule 69A-60.004 fixes the edition as the Florida 2021 edition, and Section 29.3.4.6.1 of that edition requires carbon monoxide detection in an existing hotel where a guest room or suite has a communicating attached garage or holds a permanently installed fuel-burning appliance or fireplace. An operator of an older Florida hotel is inside that question rather than outside it.

In 60 Seconds

CO detector requirements for Florida
Applies to homes?	Yes
Applies to rentals?	Yes
Applies to hotels/STRs?	Yes
Applies to schools?	Yes, under a condition
Applies to workplaces?	No

Schools and workplaces

Schools: it depends, and the test is one you can apply to the building itself. Where the fuel-burning equipment is decides it, and unusually the age of the school does not. Neither Florida statute reaches a classroom. Fla. Stat. 553.885 measures ten feet from each room used for sleeping purposes and a school has none, and Fla. Stat. 509.211(4) is written to a chapter-554 boiler space inside a public lodging establishment. The instrument that answers is the fire code: Fla. Stat. 633.202 has the State Fire Marshal adopt the Florida Fire Prevention Code, 633.202(2) incorporates NFPA 101 by reference, and Rule 69A-60.004 fixes the edition as the Florida 2021 edition, effective 31 December 2023. Chapters 14 and 15 of that code carry a carbon monoxide section each, and the two are the same rule. Section 14.3.4.4.1 for a new educational occupancy and Section 15.3.4.4.1 for one already standing both require detectors in accordance with Section 9.12 in four places, on the ceilings of rooms holding permanently installed fuel-burning appliances, centrally within occupiable spaces served by the first supply air register from a permanently installed fuel-burning HVAC system, centrally within occupiable spaces adjacent to a communicating attached garage, and centrally within occupiable spaces adjacent to an attached garage separated by a wall of gypsum panels. Where a detector goes in on the first of those limbs, 14.3.4.4.2 and 15.3.4.4.2 require the alarm signal to be transmitted automatically to an approved on-site or off-premises location under NFPA 72. Five exemptions follow in each, covering garages themselves and any occupiable space whose communicating garage is an open parking structure or is mechanically ventilated. That an existing school carries the identical duty is the part that separates this from the I-Code states, where the retrofit chapter reaches nothing educational until the 2021 edition. So an all-electric Florida school with no attached garage owes nothing, and one with a fuel-fired boiler owes a ceiling detector in the boiler room and an automatic signal out of it, whether it opened last year or in 1974. One residual, stated rather than buried. The text above is the base 2021 edition, read from NFPA's own Second Draft Report for the A2023 cycle, which names the edition on its cover; the read was controlled against Section 28.3.4.7, whose text this project already holds from a separate source. Whether the Florida-specific amendment document alters Chapter 14 or 15 could not be re-tested here, because myfloridacfo.com refuses this network with ECONNREFUSED and up.codes serves NFPA titles as a table of contents only. The record's earlier finding that those amendments never mention carbon monoxide is left standing as a finding, not relied on as a control.

Workplaces: Florida places no carbon monoxide detection duty on an office, shop or other workplace. Federal and state occupational rules set an exposure limit for carbon monoxide in air; they do not require a detector to be installed, and this row is about installation. Each of the three Florida instruments names what it reaches and none reaches a workplace. Fla. Stat. 553.885 measures ten feet from each room used for sleeping purposes, which an office does not have. Fla. Stat. 509.211(4) reaches a boiler space inside a public lodging establishment that also contains sleeping rooms. The Florida Fire Prevention Code adopted under Fla. Stat. 633.202 incorporates NFPA 101, which organises its requirements by occupancy chapter, and the carbon monoxide provisions it carries sit in the lodging and residential chapters, chapter 29 for existing hotels and dormitories among them. Florida writes no carbon monoxide provision aimed at a place of work.

When Are CO Alarms Required?

Buildings with fuel-burning appliances
Buildings with attached garages
New construction
Applies to every separate building or addition constructed on/after 2008-07-01 with any feature that emits CO as a byproduct of combustion.
Does not apply to existing buildings undergoing alterations/repairs unless the work is an 'addition' as defined by the statute.

Where to Install CO Alarms

Within 10 feet of each room used for sleeping purposes (or other locations required by the Florida Building Code).
Special rule: in new hospitals/inpatient hospice/nursing homes/state correctional institutions, CO detectors must be installed inside or directly outside each room/area where a fossil-fuel-burning heater/engine/appliance is located, and connected to the fire alarm system as a supervisory signal.

For detailed placement guidance beyond legal requirements, see where to place carbon monoxide detectors.

Device Requirements

Approved operational carbon monoxide alarm (or approved combination CO/smoke alarm) may be hardwired or battery-powered.
“Carbon monoxide alarm” must meet requirements of and be approved by the Florida Building Commission.

Landlord and Tenant Responsibilities

Landlord: Section 553.885 puts the compliance obligation on the building owner or developer for covered new construction and additions. It creates no duty that runs during a tenancy, which is the other half of why operational and maintenance questions sit outside the statute. Read for this answer: Fla. Stat. 553.885 and the Florida Building Code provisions it directs the Building Commission to adopt, read for a duty that runs during a tenancy rather than at construction.

The statute is a building-construction standard, so operational and maintenance duties sit outside it, in the Florida Fire Prevention Code and in owner and operator policy. That is not a throwaway sentence here: it is the whole reason the existing-building row is unresolved rather than negative.

Full Florida landlord and tenant carbon monoxide duties, with citations

Enforcement

Enforced by: Not specified in §553.885; administered through Florida Building Code implementation (Florida Building Commission rules) and local building/code enforcement during permitting/inspection.

Enforcement typically occurs:

During permitting and inspections for new construction or additions subject to the Florida Building Code.

§553.885(2) directs the Florida Building Commission to adopt rules and incorporate requirements into the Florida Building Code.

What a Tenant Can Do in Florida

When a carbon monoxide alarm stops working in a rented home in Florida, these are the five routes a tenant can take and where each one comes from.

"Via general law" means the Florida carbon monoxide statute itself is silent and the remedy comes from the state's landlord-tenant law instead. The remedy is available even though the alarm rule does not contain it.

"No provision found" is a finding rather than a gap in the research: the chapter that would carry that remedy was read and contains nothing either way. What was read is named beside the row.

Tenant remedies for a defective carbon monoxide alarm in Florida, with the citation or the body of law searched for each.
Rent withholding	Via general lawFla. Stat. 83.60(1). This is a defence, not a right to keep the money, and the distinction decides cases. Material noncompliance with 83.51(1) is a complete defence to an eviction for nonpayment once seven days have passed since the tenant's written notice of intent not to pay. But under 83.60(2) the tenant must then pay the accrued and accruing rent into the court registry, and failing to do so within five days is an absolute waiver of every defence except payment, with immediate default judgment for the landlord.
Repair and deduct	No provision foundSearched: Fla. Stat. Chapter 83, Part II, the Residential Landlord and Tenant Act, sections 83.40 through 83.683. No repair-and-deduct provision exists in the act. Florida channels the tenant into the two routes it does provide, withholding as a defence under 83.60 or termination under 83.56(1), and a tenant who instead pays for the work and short-pays the rent is exposed to eviction for underpayment with no statute to stand on.
Right to end the lease	Via general lawFla. Stat. 83.56(1). The written notice has to specify the noncompliance and state the intention to terminate by reason of it, so a repair request alone does not preserve the right. If the landlord has not remedied within seven days, the tenant may terminate. Where the failure is beyond the landlord's control and reasonable efforts continue, the act contemplates termination or modification by mutual consent rather than unilateral termination.
Notice the tenant must give	Via general law, 7 daysFla. Stat. 83.56(1); 83.60(1). Seven days from delivery of a written notice that names the noncompliance and states what the tenant intends to do about it, and the two routes need different statements: intent to terminate for 83.56, intent not to pay rent for 83.60. This is the same seven days as the landlord cure column, not an additional wait.
Landlord cure period	Via general law, 7 daysFla. Stat. 83.56(1). The shortest cure window in the fifty-one by a wide margin. It is the same seven days the tenant must wait, seen from the other side, and it runs from delivery of the notice rather than from any inspection or agency finding.

Applies to every row above:Florida's CO alarm requirement lives in the Building Code at 553.885, which carries no penalty and no tenant remedy and is checked at permitting rather than during a tenancy. Every column below therefore comes from Chapter 83, Part II, and reaches a CO alarm only through 83.51(1), the landlord's duty to comply with applicable building, housing and health codes. One seven-day clock does the work of both duration columns: the tenant's notice period and the landlord's cure window are the same seven days, not two periods in sequence.

Remedies last checked 2026-08-03. Compare Florida with the other states.

What Florida Requires in Lodging

The Florida carbon monoxide requirement reaches hotels and short-term rentals.

Hotels already standing: covered too. The Florida requirement reaches an existing hotel and not only one being built.

Operator duty: Section 553.885 does not speak to operators, and for a hotel it only ever answers half the question. It is a construction-date statute: a covered new lodging building, or an addition to one, must comply as part of the building code requirements, and the obligation falls on the owner or developer at the time the work is permitted. For a Florida hotel that already stands and is not being added to, this statute says nothing, and the answer comes from the Florida Fire Prevention Code instead, which has now been checked. Under Fla. Stat. 633.202 the State Fire Marshal adopts it every third year and it reaches "the design, construction, erection, alteration, modification, repair, and demolition" of public and private buildings, so it is the right place to look; what it requires is set by the editions of NFPA 1 and NFPA 101 that 633.202(2) incorporates by reference, and Rule 69A-60.004 fixes NFPA 101 at the Florida 2021 edition. One narrow piece of the operator answer does exist outside both instruments, and it carries no construction-date limit at all. Fla. Stat. 509.211(4) requires that every enclosed space or room containing a boiler regulated under chapter 554, fired by the direct application of energy from the combustion of fuels, and located in any portion of a public lodging establishment that also contains sleeping rooms, be equipped with one or more carbon monoxide detector devices listed to ANSI/UL 2075 by an OSHA-accredited testing laboratory. Those devices must be integrated with the establishment's fire detection system, or connected instead to a UL 2017 control unit or an NFPA 720 combination system wired into the boiler's own safety circuit so the boiler cannot run while carbon monoxide is detected. Installation follows rules adopted by the Division of State Fire Marshal, and a local fire official may accept that the hazard has otherwise been adequately mitigated. Read what this does and does not settle. It reaches an existing hotel, because it turns on the boiler rather than on a permit date, so a Florida operator with a fuel-fired boiler in a wing that holds guest rooms owes a detector there today. It says nothing about guest rooms themselves, nothing about lodging heated any other way, and nothing about the general retrofit question. The wider question is answered by chapter 29: Section 29.3.4.6.1 requires detection in an existing hotel where a guest room or suite has a communicating attached garage, unless exempted by 29.3.4.6.3, or contains a permanently installed fuel-burning appliance or fuel-burning fireplace, and 29.3.4.6.2 places the devices on every occupiable level of the room or suite and in the immediate vicinity of the sleeping rooms.

Full Florida hotel and short-term rental requirements

Penalties for Non-Compliance

§553.885 does not include any penalty, fine, or enforcement provision. Enforcement governed by general Florida Building Code framework under §553.80 through building permit and inspection process. CO alarm compliance checked at time of building permit/construction.

§553.885 (no penalty section); §553.80 (general enforcement)

Additional Notes

Florida writes a stricter rule for four institutional occupancies than it writes for houses, and it is easy to miss because it sits inside the placement list. In new hospitals, inpatient hospice facilities, nursing homes and state correctional institutions, a carbon monoxide detector goes inside or directly outside every room or area holding a fossil-fuel-burning heater, engine or appliance, and it must be connected to the fire alarm system as a supervisory signal. Two things follow for a facility manager. The trigger is the equipment room rather than the sleeping room, so the boiler room, the generator room and the kitchen are in scope where a dwelling would only need a detector near the bedrooms. And a standalone alarm does not satisfy it: a supervisory-signal connection means the fire alarm panel has to annunciate the condition, which is a design decision at permit stage and an expensive retrofit afterwards.
Florida does not have a CO-specific penalty provision. General code enforcement under FL Statutes Ch. 162 may allow fines, but these are general provisions, not CO-specific.
The fire code half of the existing-hotel question is now read, and it says an existing Florida hotel does carry a duty. Fla. Stat. 633.202 has the State Fire Marshal adopt the Florida Fire Prevention Code and incorporate NFPA 101 by reference, and Rule 69A-60.004 adopts "NFPA 101, the Life Safety Code, Florida 2021 Edition" with effect from 31 December 2023. Section 29.3.4.6.1 of that edition, the chapter for existing hotels and dormitories, requires carbon monoxide alarms or detectors in accordance with Section 9.12 where either condition exists: a guest room or guest suite with a communicating attached garage, unless exempted by 29.3.4.6.3, or a guest room or guest suite containing a permanently installed fuel-burning appliance or fuel-burning fireplace. Section 29.3.4.6.2 then puts them on every occupiable level of the room or suite and in the immediate vicinity of the sleeping rooms. Florida's own amendment document, the Florida Specific Amendments to the 2021 edition, never mentions carbon monoxide and never reaches chapter 29 or chapter 28, so the base text governs. This does not disturb the narrower statutory rule at Fla. Stat. 509.211(4), which reaches a chapter-554 boiler space in a lodging establishment whatever its age.

Local Rules That Differ From State Law

We checked the municipal codes listed below and found no Florida city rule that differs from the statewide requirement. The state rule is the operative one for those jurisdictions. Smaller municipalities were not all searched, so confirm with your local building or fire official before treating this as complete.

What was checked:Checked Jacksonville, Miami and Tampa. None of the three adds a carbon monoxide requirement to what the Florida Building Code already imposes, and the shape of the near-misses is the useful part. Miami and Tampa each carry the same line in their building chapters, requiring smoke and carbon monoxide alarm locations to be shown on submitted plans. Two unrelated cities carrying identical wording is the signature of a state plan-review requirement reproduced locally rather than a local rule, so it changes what a designer draws and not what an owner must install. Jacksonville's only carbon monoxide provision sets a purity limit of ten parts per million for compressed breathing air, which belongs to its trades chapter and reaches no dwelling. Miami's remaining three hits model carbon monoxide concentrations at downtown intersections for traffic planning. Each index was answering: 777, 626 and 442 provisions respond to "building" across the three, and each returns its own smoke-detector rules. Florida's county-level building departments were not searched, and neither were the smaller coastal municipalities that write their own short-term rental rules. Checked again on 2026-08-11, because the search engine behind the original reading was found not to match plurals and the Florida sweep is one of the earliest on this site. Jacksonville, Miami and Tampa were each searched for the singular and the plural of every phrase that has one, and all three still answer zero for a housing duty. The plan-review line that Miami and Tampa share turns out to read "smoke and/or carbon monoxide alarm/detector locations", which carries the singular, so the original reading would have found it either way. One number in this note does not reproduce and it is worth saying why rather than quietly correcting it. The counts of 777, 626 and 442 come from the route available in early August; searching the same three codes today through the publisher's own search endpoint, which was not working when the Florida sweep ran, returns 652, 541 and 387 for the same word. The two routes are not comparable and neither is wrong. What matters for the negative is unchanged: every control fires and the term does not.

Local sweep last reviewed 2026-08-03.

Official Sources & References

Florida Administrative Code Rule 69A-60.004, NFPA 101 Life Safety Code Florida edition adopted , The rule as titled, and its amendment history on the Florida Administrative Register (fire code, accessed 2026-08-26)
An edition-currency check, run on 2026-08-26 against the Florida Administrative Register. The rule is titled "Standards of the National Fire Protection Association, NFPA 101, the Life Safety Code, Florida 2021 Edition, Adopted", and the register's history for the rule since 2006 runs Florida 2006, 2009, 2012, 2015, 2018 and 2021 editions, with the 2021 as the most recent. No later edition has been adopted, so the Florida 2021 edition effective 31 December 2023 stands. The edition is what makes chapter 29 readable here. NFPA's own Second Draft Report for the A2023 cycle reproduces the 2021 base edition, which is the route used here to read Section 29.3.4.6.1 for existing hotels and dormitories without a licence. Florida's own amendment document never reaches chapter 28 or 29, so the base text governs.
Florida Statutes Section 633.202, Florida Fire Prevention Code , 633.202(1) and (2) (state code, accessed 2026-08-07)
Read to establish the route to the existing-building answer. Subsection (1) has the State Fire Marshal adopt the Florida Fire Prevention Code covering firesafety rules that govern "the design, construction, erection, alteration, modification, repair, and demolition of public and private buildings", which is a far wider reach than the construction date in 553.885. Subsection (2) sets the edition: the Fire Marshal "shall adopt the current edition of the National Fire Protection Association's Standard 1" and "shall adopt the current edition of the Life Safety Code, NFPA 101, current editions, by reference", and Rule 69A-60.004 fixes that as the Florida 2021 edition, whose chapter 29 was afterwards read from NFPA's own second draft report for the A2023 cycle. Direct fetch of flsenate.gov failed to connect after 22 seconds; read from the Internet Archive replay at 28,118 normalised characters, control "Florida Fire Prevention Code" at 53.
Florida Statutes §553.885, Carbon monoxide alarm required , §553.885(1)-(3) (state code, accessed 2026-02-16)
Primary statute establishing when/where CO alarms are required in new construction/additions and defining approval via Florida Building Commission.
2024 Florida Statutes, §553.80 Enforcement of the Florida Building Code , §553.80 (state code, accessed 2026-02-17)
Building code enforcement framework; local governments enforce CO alarm compliance (§553.885) via permit and inspection process
Florida Building Commission - Florida Building Code Information System , State code administration resources (agency guidance, accessed 2026-02-17)
Official state portal for Florida code editions, interpretations, and commission updates.
Florida Statutes Section 509.211(4), public lodging establishment safety regulations , Fla. Stat. 509.211(4) (state code, accessed 2026-08-13)
A third Florida instrument, found on 2026-08-13 and absent from this page before. It matters because it is the only carbon monoxide requirement Florida places on lodging that carries no construction-date limit, where 553.885 turns on a 1 July 2008 permit and the fire code half is answered by NFPA 101 chapter 29 as Florida adopts it. Read in full by two extraction paths that agree. Every enclosed space or room containing a boiler regulated under chapter 554, fired by the direct application of energy from the combustion of fuels, and located in any portion of a public lodging establishment that also contains sleeping rooms, must carry one or more carbon monoxide detector devices listed to ANSI/UL 2075 by a nationally recognized testing laboratory accredited by OSHA. The devices shall be integrated with the establishment's fire detection system; in lieu of that, the statute allows connection to a UL 2017 control unit or an NFPA 720 combination system tied into the boiler's safety circuit so the boiler cannot operate while carbon monoxide is detected. Installation follows Division of State Fire Marshal rules, and a local fire official may find the hazard otherwise adequately mitigated. Its limits are as important as its reach: it says nothing about guest rooms, nothing about lodging without a fuel-fired boiler, and nothing about the general retrofit question.
NCSL - Carbon Monoxide Detector Installation Statutes (Florida rows) , Florida rows for Fla. Stat. 553.885 and Fla. Stat. 509.211 (secondary index, accessed 2026-08-13)
Re-read on 2026-08-13 through an Internet Archive capture, the live site refusing automated requests, and it is worth saying that this one holds up where the roundups do not. The 553.885 row states the 1 July 2008 permit trigger, the fossil-fuel heater, fireplace and attached-garage conditions and the 10-foot sleeping-room distance, all of which match the statute. Florida also has a second row, and following it is what surfaced Fla. Stat. 509.211 for this page. Cited here as a maintained cross-state index rather than as authority; every figure it supplied was checked against the statute.
NFPA 101, Life Safety Code, 2021 Edition, Section 29.3.4.6, existing hotels and dormitories, read from the NFPA Second Draft Report for the A2023 cycle which names the edition on its cover (fire code, accessed 2026-08-22)

Disclaimer: This page explains the law as it stood on August 26, 2026. It is general information, not legal advice, and reading it creates no attorney-client relationship. Requirements vary by city, county and building type, and statutes and codes are amended: confirm the current text with the issuing authority before acting on it. Each requirement here cites the instrument it comes from, so you can check it at source.

Frequently Asked Questions

Which Florida projects must install CO alarms under Section 553.885?

Section 553.885 applies to new buildings and additions built on or after July 1, 2008 when a structure contains combustion equipment or an attached garage that can create carbon monoxide risk. That means many residential and lodging projects must include alarms during the permitting and inspection cycle. The law is construction-triggered, so compliance often depends on project scope rather than ownership type alone. Florida code officials typically verify installation during final inspection, making early design coordination important for developers and contractors.

Are pre-2008 Florida homes automatically covered by the same statute?

Not automatically. The statewide trigger in Section 553.885 is focused on new buildings and additions from the July 1, 2008 effective date forward. The word doing the work is "addition". Alterations and repairs to an existing home do not pull it in, so a 1994 house getting a replacement gas furnace stays outside the statute, while the same house getting a new wing is inside it for that wing. What can still reach a pre-2008 home is a local code adoption or a renovation large enough to qualify, so permit history and occupancy classification decide it rather than the year on the deed. Where no trigger is met the statute imposes nothing, and an alarm in a home with a combustion appliance remains worth fitting on its own merits.

Where does Florida require carbon monoxide alarm placement?

Florida statute language requires placement within 10 feet of rooms used for sleeping, with additional code pathways for specialized occupancies. In certain institutional settings, detectors may need to be inside or directly outside rooms containing fuel-burning equipment and tied into supervisory fire alarm systems. Device approval is linked to the Florida Building Commission framework, so listed products and installation method matter. During plan review, teams should confirm whether hardwired, battery, or combined systems are acceptable for the specific occupancy and code edition.

Does Florida have one statewide CO-specific fine schedule?

Section 553.885 does not include a single stand-alone CO penalty table. Enforcement generally runs through broader building-code mechanisms, including permit correction notices, failed inspections, and local enforcement actions under code administration statutes. For operators, the practical risk is project delay, reinspection cost, and downstream liability if required devices were omitted. That is why Florida carbon monoxide alarm requirements should be treated as part of permit compliance and quality control, not as a fine-only issue handled after occupancy.

How do Florida rules compare with Georgia new-construction requirements?

Florida and Georgia both rely on construction-code pathways, but they use different statutory and administrative structures. Florida writes its statewide requirement into Section 553.885 and its code implementation, while Georgia relies on state minimum code adoption and, on the editions Georgia has adopted, IRC Section R315 pathways enforced locally. That section number belongs to Georgia rather than to Florida, and it is edition-bound. Carbon monoxide alarms are R315 in model residential code editions through 2021 and R311 in the 2024 edition, which reassigned R315 to sleeping lofts. Multi-state builders should map requirements by jurisdiction instead of assuming one template applies. For a direct comparison with Georgia's framework, review Georgia CO detector laws before finalizing construction specifications.

Practical CO Detector Guides

Beyond legal requirements, these guides help you choose, install, and maintain CO alarms:

Where to place carbon monoxide detectors, room-by-room placement recommendations
CO detector beeping patterns, what different alarms mean
What to do if your detector goes off, emergency response checklist
CO resources and links, official agencies and safety information