CO Detector Rules in West Virginia: Rental and Lodging Requirements
Last verified: August 24, 2026
West Virginia carbon monoxide detector laws sit in one statute, Code section 15A-10-12, and it reaches an owner-occupied house as well as a rented one. Subsection (f) requires an AC powered detector with battery backup in any newly constructed residential unit that has a fuel-burning heating or cooking source, in any residential unit connected to a newly constructed garage, shed or barn holding such a source, and then across a listed set of buildings that takes in apartment buildings, boarding houses, dormitories, care facilities, hotels, motels and one- and two-family dwellings intended to be rented or leased. The first two paragraphs say residential unit and stop there. Only the third mentions letting, which is how the statute separates a newly built house from a tenancy.
West Virginia also provides explicit escalating misdemeanor fines for repeated noncompliance, at $250 for a first offense, $750 for a second and $2,000 for a third, which increases enforcement exposure when deficiencies are left unresolved. Because the framework is subsection-specific, operators should map each property class to the relevant paragraph and keep records for installation, testing, and corrective action.
West Virginia compliance files should keep subsection citations and dated remediation evidence.
Quick Safety Summary
| 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. West Virginia names schools in the statute, alongside daycare facilities, and conditions the duty on what heats the building. WV Code 15A-10-12(i) reaches every public or private school and daycare facility that uses a fuel-burning heating system or other fuel-burning device producing combustion gases, and places a detector "located in each area with a fuel-burning heating system or other fuel-burning device". So the condition is the heating plant rather than the classroom: an all-electric school is outside the subsection, and a school with a gas boiler owes a detector in the boiler area rather than in every room. The device is an operational single-station carbon monoxide detector with a suitable alarm, or a combination smoke and carbon monoxide detector, under 15A-10-12(f). The State Fire Code at 87 CSR 1 repeats the statutory scheme at Section 87-1-2.3.1.c.3, which makes it enforceable by the State Fire Marshal as code and not only as statute. That rule was refiled on 13 May 2026 and took effect on 1 July 2026, and it carries a device rule the statute does not: 87-1-2.3.1 requires the detector to be alternating-current powered with battery backup in new construction, and in existing construction either plugged into an outlet no switch controls or hardwired to an AC source, again with battery backup. Then read 87-1-2.2 for what it actually does, because it widens the answer rather than tidying it. It provides that "for purposes of this rule, the following shall be in addition to any standard set forth in NFPA 1, or NFPA 101", and 87-1-2.1.a adopts NFPA 101 in full rather than in the limited capacity NFPA 1 gives it. NFPA 101 chapter 15 governs existing educational occupancies, and 15.3.4.4.1 asks for detectors on the ceilings of rooms containing permanently installed fuel-burning appliances, centrally within occupiable spaces served by the first supply air register from a fuel-burning HVAC system, and centrally within occupiable spaces adjacent to a communicating attached garage or one separated by gypsum panels. Where a detector goes in on the first of those, 15.3.4.4.2 requires the alarm signal to be "automatically transmitted to an approved on-site location or to an off-premises location in accordance with NFPA 72". So the boiler-area detector is the floor and not the ceiling. A West Virginia school with a gas boiler owes the statutory device in the boiler area, and on top of it the Life Safety Code's placement in the spaces that plant serves, with a signal path out of the boiler room. The all-electric school is still outside both, because every limb turns on fuel-burning equipment.
Workplaces: West Virginia 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. WV Code 15A-10-12 lists the occupancies it reaches and a workplace is not among them: one- and two-family dwellings intended to be rented or leased, apartment buildings, hotels and motels, and public or private schools and daycare facilities. An office, shop or factory appears in none of the subsections. The State Fire Code at 87 CSR 1 reproduces the same scheme at Section 87-1-2.3.1.c.3 rather than extending it, and 87 CSR 1-2.1.a adopts NFPA 101 in full, whose occupancy chapters reach assembly, educational, health care, residential and similar occupancies through their own chapters rather than through a general workplace duty.
When Are CO Alarms Required?
- Buildings with fuel-burning appliances
- New construction
- Section 15A-10-12 includes requirements for schools and daycare facilities using fuel-burning systems.
- Newly constructed covered occupancies in cited categories include hardwired power language with battery backup.
Where to Install CO Alarms
- In a newly constructed residential unit that has a fuel-burning heating or cooking source, under W. Va. Code 15A-10-12(f)(1), "including, but not limited to, an oil or gas furnace or stove".
- In a residential unit connected to a newly constructed building that has such a source, under 15A-10-12(f)(2), and the statute names the buildings it means: "a garage, storage shed, or barn". Build a heated shed onto the house and the house needs a detector.
- In apartment buildings, boarding houses, dormitories, long-term care facilities, adult or child care facilities, assisted living facilities, one- and two-family dwellings intended to be rented or leased, hotels and motels, under 15A-10-12(f)(3), in "either a common area where the general public has access or all rooms in which a person will be sleeping that are adjoining to and directly below and above all areas or rooms that contain permanently installed fuel-burning appliances and equipment that emit carbon monoxide as a byproduct of combustion".
- Read that "either" carefully, because it is the whole shape of West Virginia's rule. The operator chooses: one detector in a public common area satisfies the subsection, or detectors in the sleeping rooms stacked around the plant. It is a genuine alternative and it is why the statutory floor here is lower than in most states.
- In every public or private school and daycare facility that uses a fuel-burning heating system or other fuel-burning device producing combustion gases, under 15A-10-12(i), with a detector "located in each area with a fuel-burning heating system or other fuel-burning device".
For detailed placement guidance beyond legal requirements, see where to place carbon monoxide detectors.
Device Requirements
- An operational single station carbon monoxide detector with a suitable alarm, or a combination smoke and carbon monoxide detector, under 15A-10-12(f).
- Alternating current powered, and the statute gives two ways to be: "either plugged directly in to an electrical outlet that is not controlled by a switch or hardwired into an alternating current (AC) electrical source, with battery backup". A plug-in unit is permitted, but not in a switched socket.
- Hardwired with battery backup, no plug-in option, in every newly constructed apartment building, boarding house, dormitory, hospital, long-term care facility, adult or child care facility, assisted living facility, one- and two-family dwelling intended to be rented or leased, hotel and motel, under 15A-10-12(g).
- In a long-term care facility staffed around the clock, 15A-10-12(h) requires the detector only "in an area of the facility that permits the detector to be audible to the staff on duty", which is the one place West Virginia trades detector count for staffing.
- Installed, maintained, tested, repaired or replaced "in accordance with the manufacturer's direction", under 15A-10-12(f).
Landlord and Tenant Responsibilities
Landlord: Covered owners and lessors must install and maintain required detectors in listed rental and residential categories under section 15A-10-12. Provision: 15A-10-12.
- Section language is occupancy-specific, so operators should verify that each property class falls within the cited categories.
Full West Virginia landlord and tenant carbon monoxide duties, with citations
Rental CO Compliance Check 2 min
Check which CO alarm requirements likely apply to your rental in West Virginia, whether you're a landlord or tenant.
Enforcement
Enforced by: West Virginia State Fire Marshal framework with local enforcement participation under applicable fire and code administration practice.
Enforcement typically occurs:
- During inspections and enforcement review for covered occupancies.
- During follow-up on reported missing or non-operational detectors in listed properties.
What a Tenant Can Do in West Virginia
When a carbon monoxide alarm stops working in a rented home in West Virginia, these are the five routes a tenant can take and where each one comes from.
"Via general law" means the West Virginia 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.
| Rent withholding | Via general lawTeller v. McCoy, 162 W. Va. 367 (1978). Because the duty to pay rent depends on the warranty, a tenant may withhold rent until conditions materially affecting health and safety are corrected, once the landlord has had proper notice and failed to act. Breach also stands as a defence to an action for unlawful detainer or for rent. What no source fixes is a period, so a West Virginia tenant withholding rent is relying on a court later agreeing the wait was long enough. |
|---|---|
| Repair and deduct | No provision foundSearched: W. Va. Code 37-6-30, the landlord's duty to deliver and maintain a fit and habitable dwelling, together with the remedy set the Supreme Court of Appeals laid out in Teller v. McCoy. Neither the statute nor the decision creates a right to have work done and charge it against rent. What Teller gives instead is a setoff for the difference between the agreed rent and the fair rental value of the premises in their defective condition, which compensates for the defect rather than paying to fix it. A tenant who hires a contractor recovers under damages if at all, not under a deduction, and 37-6-30 also withholds the landlord's repair obligation where the tenant is in arrears. |
| Right to end the lease | Via general lawTeller v. McCoy, 162 W. Va. 367 (1978). Breach of the warranty entitles the tenant to rescind the lease, vacate, and be relieved of further rental obligation. It is rescission rather than a notice-and-date mechanism, so unlike Alabama or Nebraska there is no drafting to get right and no fixed interval to run, and unlike Delaware there is no statutory shortcut for an imminent threat. |
| Notice the tenant must give | Via general lawTeller v. McCoy, 162 W. Va. 367 (1978). Proper notice to the landlord is a precondition of every remedy, and neither the decision nor 37-6-30 prescribes a form or a waiting period. Secondary guidance recommends certified mail with return receipt, which is practice rather than law, and is worth following here precisely because nothing in West Virginia fixes when the clock started. |
| Landlord cure period | Via general lawTeller v. McCoy, 162 W. Va. 367 (1978). A reasonable time after notice, with no figure anywhere. West Virginia joins Indiana, New Jersey and Louisiana as a state where neither duration column carries a number, and the reason is the same in each: the standard is judicial rather than legislative. For a live carbon monoxide hazard a reasonable time is short, but the tenant argues that rather than counting to it. |
Applies to every row above:Two things make this row unusual and they pull in opposite directions. West Virginia's alarm statute at 29-3-16a is written for smoke detectors, and 15A-10-12 requires a landlord who works on a fuel-burning appliance or venting system to warn the tenant about carbon monoxide and recommend a detector rather than to install one. So the state's carbon monoxide provisions impose information duties and never reach the remedy chapter, which is the fourth trap in the same shape Idaho and the District set. And West Virginia is not a URLTA state: 37-6-30 supplies the landlord's statutory duty to deliver and maintain a fit and habitable dwelling, but every remedy below comes from Teller v. McCoy, where the Supreme Court of Appeals treated the lease as a contract and made the covenant to pay rent dependent on that warranty. This is the most thoroughly judge-made row in the fifty-one, the only one where every cell cites a decision rather than a section. New Jersey comes closest, with three of its routes from Marini v. Ireland and a statute alongside them for receivership.
What West Virginia Requires in Lodging
The West Virginia carbon monoxide requirement reaches hotels and short-term rentals.
Hotels already standing: covered too. The West Virginia requirement reaches an existing hotel and not only one being built.
Operator duty: W. Va. Code 15A-10-12(f)(3) names hotels and motels and sets the floor: an operational detector in either a common area to which the general public has access, or all rooms in which a person will be sleeping that adjoin and are directly below and above rooms holding permanently installed fuel-burning appliances. The State Fire Code repeats that rule at 87 CSR 1-2.3.1.c, so it is enforceable by the State Fire Marshal as code and not only as statute. The same rule adopts NFPA 101, 2021 edition, in full at 87 CSR 1-2.1.a and amends nothing in its hotel chapters, and 87 CSR 1-2.2 makes the state's own provisions additive to NFPA 101 rather than a substitute, so a West Virginia hotel also carries whatever NFPA 101 chapters 28 and 29 require. Those chapters were read on 2026-08-20 and the ceiling is now established as well as the floor. Section 28.3.4.7.1 for new hotels and dormitories and Section 29.3.4.6.1 for existing ones require carbon monoxide alarms or detectors where either condition exists: a guest room or guest suite with a communicating attached garage, or one containing a permanently installed fuel-burning appliance or fuel-burning fireplace. Where required, detection goes on every occupiable level of the guest room or suite and in the immediate vicinity of the sleeping rooms. Two consequences follow for an operator. The NFPA layer asks for detection inside the guest room itself, so the common-area option West Virginia's own statute allows does not satisfy it where a guest room has its own gas fireplace or an attached garage. And the two chapters are identical in substance, differing only in section numbers and in "new" against "existing", so the age of a West Virginia hotel changes nothing about the carbon monoxide duty. That is the opposite of the I-Code pattern, where Chapter 11 is a separate and weaker retrofit route.
Penalties for Non-Compliance
West Virginia section 15A-10-12 establishes escalating misdemeanor fines of $250 for first offense, $750 for second offense, and $2,000 for third and subsequent offenses.
West Virginia Code section 15A-10-12(l) and section 15A-10-12(m).
Additional Notes
- West Virginia puts a carbon monoxide duty on the tradesperson as well as the owner, which is unusual enough to be worth knowing before commissioning work. State Fire Code 87-1-2.3.1.c.4 requires whoever installs a detector to inform the occupant of the dangers of carbon monoxide and of how the detector works, and 87-1-2.3.1.c.5 requires a repair person servicing a fuel-burning system to inform the occupant of the hazards. Neither duty sits in W. Va. Code 15A-10-12, so a reader working from the statute alone will not find them; both arrived with the rule refiled 13 May 2026 and effective 1 July 2026.
- An owner-occupied West Virginia house is inside the statute, and the drafting shows it was meant to be. W. Va. Code 15A-10-12(f) requires an operational single station carbon monoxide detector, or a combination smoke and carbon monoxide detector, AC powered with battery backup, in three cases. The first two say "residential unit" and stop there: subsection (f)(1) reaches "any newly constructed residential unit which has a fuel-burning heating or cooking source including, but not limited to, an oil or gas furnace or stove", and (f)(2) reaches "any residential unit which is connected to a newly constructed building, including, but not limited to, a garage, storage shed, or barn" with such a source. Neither says anything about who owns or occupies the unit. Subsection (f)(3) is where tenure appears, and it appears once: its list of buildings names "one- and two-family dwellings intended to be rented or leased", alongside apartment buildings, boarding houses, dormitories, care facilities, hotels and motels. A legislature that wrote "intended to be rented or leased" into the third paragraph and left it out of the first two was distinguishing them. So a newly built house with a gas furnace carries the duty whether or not anyone rents it, while the trigger in (f)(3) is the one an owner-occupier falls outside.
- The next time a boiler or a flue is serviced in West Virginia, somebody acquires a legal duty and it is not the landlord. Under 15A-10-12(k), where repair or maintenance work is undertaken on a fuel-burning heating or cooking source or a venting system in an existing residential unit, "the person making the repair or performing the maintenance shall inform the owner, lessor, or the occupant or occupants ... of the dangers of carbon monoxide poisoning and recommend the installation of a carbon monoxide detector". The duty falls on the technician, it is triggered by the work rather than by the building, and what it produces is a recommendation rather than a detector.
- A second information duty sits beside it at 15A-10-12(j): anyone installing a detector in a residential unit must inform the owner, lessor or occupants of the dangers of carbon monoxide poisoning and give instructions on operating the device. So West Virginia regulates the conversation twice and the installation once, which is the shape worth knowing about this state.
- Compliance teams should preserve subsection references to avoid applying the wrong trigger language across property classes.
Official Sources & References
- West Virginia Code section 15A-10-12 detector requirements , 15A-10-12(f), 15A-10-12(g), 15A-10-12(i) (state code, accessed 2026-02-17)
W. Va. Code 15A-10-12 is the core statewide requirement, covering occupancy categories, device types and power pathways. Subsection (f)(3) is the one that names hotels and motels. - West Virginia Code section 15A-10-12 penalties , 15A-10-12(l) and 15A-10-12(m) (state code, accessed 2026-02-17)
Escalating misdemeanor fine schedule and related penalty-language context. - West Virginia Code section 15A-10-1 office of state fire marshal , 15A-10-1 (state code, accessed 2026-02-17)
State fire marshal authority context for code and enforcement administration. - NFPA 101, Life Safety Code, 2021 Edition, Chapters 28 and 29, as adopted in full by 87 CSR 1-2.1.a , Section 28.3.4.7 with Section 28.3.4.7.1, Section 28.3.4.7.2, Section 28.3.4.7.3, Section 28.3.4.7.4 and Section 28.3.4.7.5, new hotels and dormitories; Section 29.3.4.6 with Section 29.3.4.6.1, Section 29.3.4.6.2, Section 29.3.4.6.3, Section 29.3.4.6.4 and Section 29.3.4.6.5, existing hotels and dormitories (fire code, accessed 2026-08-20)
For West Virginia this is the adopted text rather than a proxy for it, because 87 CSR 1-2.1.a adopts NFPA 101 in full and amends nothing in either chapter. Obtained free and account-free from NFPA own Second Draft Reports, which reproduce the base edition rather than only the changes to it. The linked A2026 report carries the 2024 edition; the A2023 report carries the 2021 edition that West Virginia adopts. The edition control, stated rather than assumed. West Virginia adopts 2021 and the document linked here is 2024, so the difference has to be addressed instead of glossed. These two sections are byte-identical between the editions: 29.3.4.6 is 2,014 characters in both and 28.3.4.7 is 2,009 characters in both, compared character by character with no first difference found. For these sections the edition does not change the answer. That equality is the reason the 2024 document can be cited for a 2021 adoption, and it is not a general licence to read one edition for another. A numbering trap sits next to this and is worth carrying. In the 2021 and 2024 editions the new-hotel carbon monoxide section is 28.3.4.7, and 28.3.4.6 is "Smoke Alarms". In the 2012 edition carbon monoxide was at 28.3.4.6. A citation carried forward without its edition therefore does not dangle, it resolves silently to a different subject, which is the same failure as IRC R315 becoming Sleeping Lofts. The existing-hotel section did not move: 29.3.4.6 is carbon monoxide throughout. - West Virginia State Fire Code, 87 CSR 1, Fire Commission legislative rule , 87-1-1.1 scope, 1.6 exemptions, 1.8 conflicts; 87-1-2.1.a adoption of NFPA 101; 87-1-2.2 additive clause; 87-1-2.3.1.c carbon monoxide in hotels and motels (fire code, accessed 2026-08-09)
Made by the State Fire Commission under W. Va. Code 15A-11-3, filed 13 May 2026, effective 1 July 2026, sunset 1 August 2031. 2.1 adopts NFPA 1, 2021 edition, and 2.1.a adopts NFPA 101, 2021 edition, "in full, as opposed to the limited capacity as set forth in NFPA 1", with additions only at section 11.8 for high-rise buildings. Measured across the whole of section 2: "Chapter 28" 0, "Chapter 29" 0, "28.3" 0 and "29.3" 0, against a control of "NFPA" at 43 and "carbon monoxide" at 17, so the hotel occupancy chapters are adopted unamended. 2.2 provides that the rule's own requirements "shall be in addition to any standard set forth in NFPA 1, or NFPA 101", so 2.3 is a floor rather than a substitute. 2.3.1.c repeats the statutory hotel rule inside the code. 1.6 exempts only personal care homes with three or fewer patients, buildings used wholly as dwelling houses for no more than two families, and agricultural buildings, so a hotel is inside the code with no local election available. - W. Va. Code 15A-10-12(f)(1) to (f)(3), carbon monoxide detector requirements (read from the Internet Archive capture of code.wvlegislature.gov) (state code, accessed 2026-08-22)
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
Are carbon monoxide alarms required statewide in West Virginia rentals?
How do West Virginia code pathways handle repeated CO detector violations?
Which West Virginia occupancies are explicitly listed in section 15A-10-12?
Where should detectors be installed under West Virginia requirements?
Do all-electric West Virginia units always avoid these duties?
In West Virginia programs, what procedure differs most from Ohio enforcement workflow?
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