CO Detector Rules in Louisiana: Sale, Lease, and Generator Triggers

Last verified: August 24, 2026

Act 458 of the 2022 Regular Session put Louisiana carbon monoxide detector law into R.S. 40:1581, and the requirement took effect January 1, 2023. The statute is primarily structured around sale or lease events for covered one- and two-family dwelling contexts. In practice, this means transfer and occupancy timing is the key statewide compliance trigger rather than a broad fuel-source trigger applied to every scenario.

The same statute also requires professional generator installers in one- and two-family dwellings to include at least one operable detector with a long-life sealed battery. Louisiana's framework includes explicit safe-harbor language on insurance and transfer effects, but that does not remove life-safety risk or civil exposure when alarms are missing.

Owners, agents, and property managers should verify detector presence before transaction milestones and keep written documentation for disclosure and post-occupancy maintenance. Verifying detector status before lease execution and closing signatures further reduces transaction risk.

In 60 Seconds

CO detector requirements for Louisiana
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. The construction code answers a Louisiana classroom and the statute does not go near it. R.S. 40:1581 is headed "Smoke detectors; carbon monoxide detectors; one- or two-family dwellings" and every operative subsection repeats that limit, so a school is outside it entirely. R.S. 40:1730.23(A) then makes the Louisiana State Uniform Construction Code the only construction code a municipality or parish may enforce, R.S. 40:1730.28 obliges the council to adopt the latest International Building Code, and LAC 17:I.103.A adopts the 2021 edition excluding Chapters 1, 11 and 27, which are administration, accessibility and electrical rather than anything to do with existing buildings. Chapter 9 survives that exclusion intact, so Section 915.1.1 reaches classrooms in Group E occupancies where a condition in Sections 915.1.2 through 915.1.6 exists. Beyond the detector, Section 915.2.3 requires the classroom's alarm signals to be "automatically transmitted to an on-site location that is staffed by school personnel", excepting a Group E occupancy with an occupant load of 30 or less. That is the 2021 requirement, and the pending adoption below changes its class rather than its trigger. In the 2024 edition the same section stops accepting alarms: it requires a carbon monoxide system using detectors to be installed in Group E occupancies, with the transmission duty on top of it. So a Louisiana district costing a classroom retrofit against the 2021 text is costing listed alarms and a signal path, and the same job under the 2024 codes is a supervised system. Worth knowing before a capital request rather than after. What does not survive is the retrofit: Section 915.1 sends existing buildings to Chapter 11 of the International Fire Code and Louisiana adopts no edition of that code, so a school standing before the adoption and never worked on carries no duty from this route. A local rule cannot be written into the building code either, since 40:1730.23(A) forecloses it, which is why the Louisiana local carbon monoxide provisions all sit in property maintenance codes and short-term rental ordinances. One date to watch, and it is close. The 2021 codes took effect on 1 January 2023, and on 7 July 2026 the Louisiana State Uniform Construction Code Council approved the adoption language for the 2024 International Codes and the 2023 National Electrical Code. No effective date has been published for that adoption, checked on 2026-08-24. When it arrives it moves both halves of this answer at once, because code change F102-21 replaces Section 915 occupancy list with four questions about the building, which is what the classroom limb above turns on.

Workplaces: Louisiana 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. Section 915.1.1 of the 2021 International Building Code, adopted by LAC 17:I.103.A with Chapter 9 surviving the exclusion of Chapters 1, 11 and 27, reaches Group I-1, I-2, I-4 and R occupancies and classrooms in Group E occupancies, with no Group B, F, M or S. The only Louisiana statute on the subject, R.S. 40:1581, is titled and scoped to one- and two-family dwellings. R.S. 40:1730.23(A) bars a municipality or parish from enforcing any construction code but the state one, so a local workplace requirement cannot be written into a building chapter either; the two local rules read for this dataset, New Orleans Section 26-230(b) and Lafayette Section 26-285, both reach dwellings.

When Are CO Alarms Required?

Home sales or property transfers
R.S. 40:1581 ties baseline obligation to sale or lease status in covered residential settings.
Generator installation in one- or two-family dwellings carries a detector requirement under the same statute.

Where to Install CO Alarms

At least one operable carbon monoxide detector is required under R.S. 40:1581, but the statute does not prescribe an exact room-by-room location map.

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

Device Requirements

At least one operable detector with a long-life sealed battery is required in covered scenarios.
Combination smoke and carbon monoxide units are allowed when they meet the statute's detector requirement.

Landlord and Tenant Responsibilities

Landlord: Covered sale or lease events require the dwelling to include the statutory detector baseline before occupancy transfer. Provision: R.S. 40:1581.

The cited statute does not create a broad hotel-specific statewide detector framework.

Full Louisiana landlord and tenant carbon monoxide duties, with citations

Enforcement

Enforced by: Not explicitly centralized in one statewide enforcement section in the cited statute text.

Enforcement typically occurs:

At sale or lease compliance points for covered one- and two-family dwellings.
During transaction or occupancy review where statutory detector condition is evaluated.

What a Tenant Can Do in Louisiana

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

"Via general law" means the Louisiana 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.

Tenant remedies for a defective carbon monoxide alarm in Louisiana, with the citation or the body of law searched for each.
Rent withholding	Via general lawLa. Civ. Code art. 2715. Framed as diminution of the rent rather than withholding. Where the use of the thing is substantially impaired without the lessee's fault, the lessee may obtain a reduction of rent or dissolution of the lease, whichever the circumstances of both parties make more appropriate, and may demand damages besides where the lessor is responsible for the impairment. One limit is easy to miss: where the impairment comes from circumstances external to the leased thing, dissolution is the only route and no rent reduction is available.
Repair and deduct	Via general lawLa. Civ. Code art. 2694. Uncapped, one of five in the fifty-one alongside Colorado, North Dakota, Oregon and South Dakota. If the lessor fails to make necessary repairs within a reasonable time after the lessee's demand, the lessee may cause them to be made and either claim immediate reimbursement or apply the amount to the rent. The controls are substantive rather than numerical: the repair must have been one the lessor owed and must have been necessary, and the amount spent must have been reasonable. A tenant who overpays for the work recovers only what was reasonable.
Right to end the lease	Via general lawLa. Civ. Code art. 2715. Dissolution of the lease is the alternative to a rent reduction under the same article, and the choice between them is not the tenant's alone; the code directs it according to the circumstances of both parties. That makes Louisiana termination a judicial outcome in a contested case rather than something a tenant achieves by serving a correctly drafted notice, which is how Alabama, Iowa and Kentucky work.
Notice the tenant must give	Via general lawLa. Civ. Code art. 2694. The trigger is a demand, and the code prescribes no form for it and no period the tenant must wait. Nothing requires certified mail as Maine and Illinois do, and nothing requires the demand to state an intention to repair as Missouri and Kentucky do. The looseness cuts both ways: it is easy to satisfy and hard to prove later, so the value of writing it down is evidentiary rather than statutory.
Landlord cure period	Via general lawLa. Civ. Code art. 2694. A reasonable time after demand, with no figure anywhere in the article. Louisiana is one of eight states in the fifty-one where neither duration column carries a number, alongside Indiana, Michigan, New Jersey, North Dakota, Pennsylvania, South Dakota and West Virginia. Here the reason is that the standard is judicial rather than legislative. For a live carbon monoxide hazard a reasonable time is short, but that is an argument the tenant makes rather than a date the tenant counts to.

Applies to every row above:Louisiana is the one civil-law jurisdiction in this matrix and the only state whose answers come from a code of general obligations rather than a landlord-tenant act. There is no URLTA here and no chapter of tenant remedies to read: the lease is a nominate contract in the Civil Code, and the tenant's rights sit in the lease articles at 2668 and following, which apply to a rented apartment and a rented tractor alike. Two consequences follow for this row. Every column below turns on general contract concepts, demand and reasonable time and substantial impairment, rather than on statutory day counts, so Louisiana records no number in either duration column. And the remedies are unusually strong where they exist, because a code of obligations does not think in the capped, procedural terms a landlord-tenant statute uses.

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

What Louisiana Requires in Lodging

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

Hotels already standing: it depends, and on a separate test from the one that decides coverage generally. Work on the building decides it. LAC 17:I.103.A adopts the 2021 International Building Code excluding Chapters 1, 11 and 27, which are administration, accessibility and electrical. Chapter 9 and its Section 915 survive that untouched. Section 915.1 then sends existing buildings to Chapter 11 of the International FIRE Code, which is a different code and a different Chapter 11 from the one Louisiana leaves out. Louisiana does not adopt the fire code at all: R.S. 40:1730.28 requires the council to adopt the building, existing building, residential, mechanical, plumbing, fuel gas and energy conservation codes and the National Electrical Code, and the fire code is absent from that list. So the retrofit route Section 915.1 points at has no adopted vehicle in Louisiana, and what remains is new construction plus work brought in under the International Existing Building Code. An operating hotel that has done no such work carries no duty from this route.

Operator duty: A Louisiana hotel or motel operator takes the duty from the construction code, not from the carbon monoxide statute, which is written for one- and two-family dwellings and does not reach them. R.S. 40:1730.23(A) makes the Louisiana State Uniform Construction Code the only construction code any municipality or parish may enforce, R.S. 40:1730.28 requires the council to adopt the latest International Building Code, and LAC 17:I.103.A adopts the 2021 edition with Chapters 1, 11 and 27 excluded. Chapter 9 survives that exclusion intact and Section 915.1.1 requires carbon monoxide detection in Group I-1, I-2, I-4 and R occupancies, with Section 310.2 listing transient hotels and motels in Group R-1. Detection belongs in the guest rooms, which Section 915 calls sleeping units, where the room holds a fuel-burning appliance or fireplace, is served by a fuel-burning forced-air furnace, sits in a building containing such an appliance with a communicating opening, or adjoins an attached private garage. Two limits are worth stating: Section 915.1 sends existing buildings to Chapter 11 of the International Fire Code, which the state code does not adopt, so this is a requirement on new construction and on permitted work rather than a retrofit order to every operating hotel.

Full Louisiana hotel and short-term rental requirements

Penalties for Non-Compliance

R.S. 40:1581 includes safe-harbor language on insurance payment and transfer effects, but does not provide a single statewide CO-specific fine schedule in the cited text.

R.S. 40:1581.

Additional Notes

This analysis focuses on the one- and two-family statutory pathway in R.S. 40:1581 and on the state construction code that reaches everything the statute leaves out.
Local building and fire authorities may apply additional requirements beyond this statute.
The Louisiana carbon monoxide statute does not reach lodging, and its own title says so. R.S. 40:1581 is headed "Smoke detectors; carbon monoxide detectors; one- or two-family dwellings", and each operative subsection repeats that limit: subsection B requires an operable carbon monoxide detector with a long-life sealed battery in existing one- or two-family dwellings at the time of sale or lease, and subsection C attaches one to a generator installed in a one- or two-family dwelling. The words hotel, motel and lodging appear nowhere in the section. A hotel operator's answer therefore has to come from the commercial route instead.
That commercial route answers, and it is the Louisiana State Uniform Construction Code. R.S. 40:1730.23(A) tells every municipality and parish to enforce only the codes provided for in that Part, R.S. 40:1730.28 makes adoption of the latest International Building Code mandatory, and LAC 17:I.103.A adopts the 2021 edition while excluding only Chapter 1 on administration, Chapter 11 on accessibility and Chapter 27 on electrical. Chapter 9 is not excluded, and the state amendments to the building code, which run to Table 509.1, several parts of Section 903 and most of Section 1010, never touch Section 915. So the model text applies unchanged: carbon monoxide detection in Group I-1, I-2, I-4 and R occupancies, with transient hotels and motels classified Group R-1 at Section 310.2. The Louisiana carbon monoxide scheme was drafted twice over for houses, once in the statute and once in the residential-code amendments, and the answer for lodging was sitting in the model code the state adopted without changing it.

Local Rules That Differ From State Law

At least one Louisiana municipality sets CO requirements that go beyond the statewide rule. Where your property sits decides which applies, and the stricter one governs.

New Orleans

New Orleans requires a carbon monoxide detector in every dwelling unit in the city, names the battery technology, and lets an inspector press the button. Section 26-230(b) sits in the Minimum Property Maintenance Code and says that all systems and devices for detecting carbon monoxide must be kept operable at all times under the city's own fire code, that all dwelling units shall have an operable carbon monoxide detector with a long-life sealed battery, and that the code official may test it. Set that against the statute. R.S. 40:1581 fires on sale or lease of a one- or two-family dwelling, and its long-life sealed battery language belongs to a narrow case, a professional generator installation. New Orleans takes the device standard out of that corner and applies it to the whole housing stock as a continuing condition, with no transaction to wait for. Subsection (a) does the same job for fire detection and is more specific about the alternative, allowing a ten-year sealed lithium battery. Two more provisions reach short lets: Section 26-617 makes an applicant for a short-term rental permit mark the location of the carbon monoxide detectors on the submitted floor plan, and Section 26-618(e) makes working detectors a legal duty of the permit holder. Section 26-656(b) repeats the requirement in the minimum rental standards. The carbon monoxide subsection was last touched by Ordinance No. 30078 in October 2024.

New Orleans Code Section 26-230(b), Minimum Property Maintenance Code, with Sections 26-617, 26-618(e) and 26-656(b); M.C.S. Ord. No. 25454 (2013) as amended by Ord. No. 30078 (2024) Checked 2026-08-10.

Lafayette City-Parish

Lafayette supplies the vehicle the state never adopted. Section 26-285 sits in the fire safety division of the consolidated government's property maintenance code and requires carbon monoxide alarms in dwellings under Section 1103.9 of the International Fire Code as Lafayette amends it, with dwellings covered by the residential code going to Section R315 instead. That R315 is the model residential code's carbon monoxide section as it stood in every edition through 2021. The 2024 edition renumbered it to R311 and gave R315 to sleeping lofts, so the reference is sound only against the edition Lafayette has adopted, and the ordinance does not name one. Ask the consolidated government which edition governs before relying on the number, and treat the same caution as applying to any Louisiana municipality, since the state leaves this to local adoption. Subsection (b) then imposes the part that matters for older housing: alarms and detection systems must be maintained to NFPA 720, and any alarm that becomes inoperable or starts signalling end of life must be replaced. Louisiana does not adopt the fire code, so Section 1103.9 has no statewide force here; inside Lafayette it does, and with it a continuing duty to keep the device alive that a landlord in an unincorporated parish does not carry.

Lafayette City-Parish Consolidated Government Code Section 26-285, Carbon monoxide alarms and detection, Article V property maintenance code, Division 8 fire safety requirements Checked 2026-08-10.

Shreveport

Shreveport pairs the detector with the chimney, which nothing else in this dataset does. Section 23.8 of the Unified Development Code lists the health and safety standards a short-term rental property must meet at all times while occupied, and paragraph C requires smoke detectors, carbon monoxide detectors and fire extinguishers to be installed and operable and, in the same sentence, requires all wood-burning fireplaces and stoves to be cleaned annually. Detection and source maintenance in one clause is the right instinct: a blocked flue is the mechanism behind a large share of residential poisonings, and an alarm is the second line rather than the first. The standard runs continuously rather than at permit issue, and it carries no fuel-burning trigger, so a Shreveport short-term rental with no combustion in it still owes the detector.

Shreveport Unified Development Code Section 23.8(C), Article 23 Short-Term Rental Properties, health and safety standards Checked 2026-08-10.

What was checked:Louisiana produces the sharpest example this survey has of a state leaving a hole and cities filling it. The state adopts the building code and Section 915.1 of it sends existing buildings to Chapter 11 of the International Fire Code, but R.S. 40:1730.28 does not put the fire code on the list the council must adopt, so the retrofit route has no vehicle at state level. Two of the five municipalities read supply one: New Orleans and Lafayette both carry their own property maintenance code with a carbon monoxide section in it, and both are below. Where those sections sit is not an accident. R.S. 40:1730.23(A) forbids a municipality or parish from enforcing a construction code other than the state's, so a Louisiana city cannot write into the building code at all. Every finding here is in a property maintenance code or a short-term rental ordinance instead, which is the same shape New Jersey and Massachusetts produced for the same reason. A search of the Louisiana building chapters alone would find nothing and conclude wrongly. Five municipalities read on 2026-08-10: New Orleans, Baton Rouge, Shreveport, Lafayette City-Parish and Lake Charles. Baton Rouge and Lake Charles carry nothing, both control-tested against live indexes. The smaller parishes, Bossier City, Kenner, Slidell and the Northshore were not searched.

Local sweep last reviewed 2026-08-10.

Official Sources & References

Louisiana State Uniform Construction Code Council, council notices and current code editions , Current codes in force and the status of the next adoption (agency guidance, accessed 2026-08-24)
The currency check on the edition, read on 2026-08-24 through r.jina.ai. The council lists "2021 ICC Codes w/ Louisiana Amendments" as the codes it publishes, and announces that "On July 7, 2026, the LUCCC has approved language for the adoption of the 2023 National Electrical Code (NEC) and for the 2024 International Codes (I-Codes)". No effective date is given for that adoption, which is why the answers here are stated against the 2021 codes with the pending change named rather than hedged. The 2021 editions took effect on 1 January 2023 and covered the IBC, IRC, IEBC, IFGC, IMC and IPC together with the 2020 National Electrical Code; that date and list are reported by a code-industry summary of the council Notice of Intent rather than read from the Notice itself, which is no longer served at the address the summary cites.
Louisiana Revised Statutes R.S. 40:1581 (main text) , R.S. 40:1581 (state code, accessed 2026-02-16)
Primary statewide carbon monoxide detector statute for covered sale and lease scenarios.
Louisiana Revised Statutes R.S. 40:1581 (sale and lease requirement sections) , Subsections B and C (state code, accessed 2026-02-16)
Supports transaction-trigger compliance baseline and detector condition language.
Louisiana Revised Statutes R.S. 40:1581 (generator and safe-harbor sections) , Subsections D through F (state code, accessed 2026-02-16)
Covers generator-install requirement and safe-harbor language related to insurance and transfer effects.
Louisiana Administrative Code Title 17, Part I, Uniform Construction Code , LAC 17:I.103.A, adoption of the International Building Code, 2021 Edition (building code, accessed 2026-08-04)
Adopts the 2021 IBC excluding only Chapter 1 (Administration), Chapter 11 (Accessibility) and Chapter 27 (Electrical). Chapter 9 is adopted. The state amendments listed under this section name Table 509.1, Sections 903.2.1.2, 903.2.1.3, 903.2.8, 903.2.9.4, 1010.2.4, 1010.2.11 to 1010.2.13.1, 1020.2, 1020.6, 1027.6, 1031.2, 1603.1.5, 1604.5, 1609.2, 1609.3.1, 1612.2, 1613.1, 3001.2, 3113.3, 3313.2 and 3314, and never reach Section 915. Read 2026-08-04; "915" returns zero across the building-code portion while "Group R" returns four in the same text, so the absence is real rather than a failed read.
Louisiana Revised Statutes R.S. 40:1730.23 and 40:1730.28 (Uniform Construction Code Law) , R.S. 40:1730.23(A) exclusive local enforcement; R.S. 40:1730.28 mandatory adoption of the latest IBC (state code, accessed 2026-08-04)
1730.23(A) provides that all municipalities and parishes in the state shall enforce only the construction codes provided for in this Part, which is what makes the adopted IBC the operative rule for a hotel anywhere in Louisiana rather than a local option. 1730.28 obliges the council to adopt the latest IBC edition. Published by the Louisiana State Uniform Construction Code Council as the combined law and rules volume, edition of 1 August 2025.
Louisiana State Fire Marshal guidance notice on Act 458 CO alarm changes , Act 458 of 2022 Regular Session, effective January 1, 2023 (agency guidance, accessed 2026-05-17)
Agency guidance from LSFM (issued September 2022) summarizing the Act 458 sale-or-lease requirement and the parallel Louisiana Uniform Construction Code Council amendment requiring CO alarms when a whole-home standby generator is installed. Verified via Wayback Machine snapshot 2024-09-19 (live LSFM site reachable via curl but document URL unstable).

Disclaimer: This page explains the law as it stood on August 24, 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

When does Louisiana law clearly require a carbon monoxide detector?

Louisiana's clearest statewide requirement appears in R.S. 40:1581 and is tied to sale or lease events in covered one- and two-family residential settings. That means transaction timing, leasing workflow, and occupancy turnover are central compliance checkpoints. Owners and agents should confirm detector presence before closing or move-in rather than waiting for post-occupancy corrections. Louisiana files should include dated proof of detector status at each transaction milestone. In Louisiana, reference R.S. 40:1581 and local authority guidance in all transaction and compliance records.

Does Louisiana require specific detector placement inside the home?

R.S. 40:1581 requires at least one operable detector with a long-life sealed battery in covered scenarios, but the statute does not provide a detailed room-by-room placement map in the cited text. Because of that, operators should follow manufacturer guidance and any additional local code direction when choosing exact location. The key legal baseline is detector presence at the required transaction point. Louisiana owners should document why the selected location is defensible. In Louisiana, reference R.S. 40:1581 and local authority guidance in all transaction and compliance records.

What happens if a covered property is noncompliant in Louisiana?

The cited statute does not present one simple statewide CO-specific fine table, but noncompliance can still create transaction friction, inspection issues, and post-incident liability risk. R.S. 40:1581 also includes safe-harbor language about insurance and transfer effects, which can be misunderstood as broad immunity. Operators should not treat that as a substitute for compliance. Louisiana teams should correct deficiencies promptly and preserve written remediation records. In Louisiana, reference R.S. 40:1581 and local authority guidance in all transaction and compliance records.

How does the generator-installer requirement work in Louisiana?

Under R.S. 40:1581, professional installers of generators in one- and two-family dwellings must include at least one operable carbon monoxide detector with a long-life sealed battery. This requirement creates an additional compliance path beyond standard sale or lease timing. Contractors and owners should capture this step in installation contracts, commissioning checklists, and turnover records. In Louisiana projects, missing this handoff detail can create avoidable legal and safety exposure. In Louisiana, reference R.S. 40:1581 and local authority guidance in all transaction and compliance records.

Are hotels and all short-term rentals covered by the same Louisiana statute?

Not necessarily in the same way. The cited statewide statute is framed around one- and two-family residential scenarios and related transaction events, so operators should not assume it automatically maps to every lodging model. Hotel and short-term rental obligations can depend on other local or occupancy-specific code pathways not fully covered in this statewide framework. Louisiana operators should confirm classification and requirements with the local authority having jurisdiction. In Louisiana, reference R.S. 40:1581 and local authority guidance in all transaction and compliance records.

How do Louisiana transfer-trigger rules compare with Texas workflows?

Louisiana relies heavily on a sale-or-lease statutory trigger in R.S. 40:1581, while Texas operators often work through a different mix of statute duties and occupancy implementation. Regional teams should avoid one shared checklist and map state-specific trigger logic before closing, leasing, or turnover activity. For nearby-state comparison before finalizing Gulf Coast SOPs, review Texas CO detector laws and align transaction controls separately. In Louisiana, reference R.S. 40:1581 and local authority guidance in all transaction and compliance records.

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