What North Dakota Requires for CO Detectors in Covered Dwellings
Last verified: August 24, 2026
North Dakota carbon monoxide detector laws are implemented through state wiring and building code pathways, especially NDAC 24.1-06-01-40 and adopted residential-code language for alarm location and device operation. The framework applies to covered dwelling settings with fuel-fired equipment or attached-garage conditions and requires sleeping-area proximity placement, coverage on every habitable level, and bedroom placement when fuel-fired appliances are in sleeping rooms.
North Dakota also specifies power and interconnection requirements that vary by project context, including hardwired with backup pathways in new construction and permitted alternatives in existing settings. Because obligations are code-driven, owners should document trigger analysis, installation configuration, testing, and correction history.
North Dakota compliance files should preserve section-level citations and local enforcement communication. Maintain permit IDs and inspector notes with every remediation record.
Key Takeaways
| 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. North Dakota fire code is statewide by its own definitions and it leaves the carbon monoxide sections intact on both sides. NDAC 45-18-01-04 adopts the International Fire Code, 2021 edition, effective 1 January 2024, and its amendments inside chapter 9 reach only Sections 903.2.8, 903.3.1.1.1, 903.3.5, 905.1.1 and 907.8.3. "Carbon monoxide" appears nowhere in the chapter, so Section 915 applies as published and a classroom in a Group E occupancy is covered where a condition in Sections 915.1.2 through 915.1.6 exists. Thirty occupants is the line that matters most in a state of small schools. Section 915.2.3 requires detector signals to be "automatically transmitted to an on-site location that is staffed by school personnel", and excepts a Group E occupancy with an occupant load of 30 or less. A North Dakota building under that load needs the detectors and not the transmission; one over it needs a monitored path back to a staffed office, which is a different order of cost. Two definitions carry it to every county: NDAC 45-18-01-02(1) applies the chapter to all persons without restrictions unless specifically exempted, and NDAC 45-18-01-03(2) provides that "city" or "jurisdiction" refers to the state of North Dakota. The existing school follows, because in chapter 11 the state amends only Section 1103.5.1 and leaves Section 1103.9 intact, and it does not touch IFC 102.1, so item 3 of that section still applies Chapter 11 to existing structures without anyone forming an opinion first.
Workplaces: North Dakota 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 Fire Code, adopted by NDAC 45-18-01-04 with chapter 9 amendments reaching only 903.2.8, 903.3.1.1.1, 903.3.5, 905.1.1 and 907.8.3, covers Group I-1, I-2, I-4 and R occupancies and classrooms in Group E occupancies, with no Group B, F, M or S. Section 1103.9 carries the same list to existing buildings and North Dakota amends only 1103.5.1 in that chapter. North Dakota writes no carbon monoxide statute placing a duty on a workplace.
When Are CO Alarms Required?
- Buildings with fuel-burning appliances
- Buildings with attached garages
- NDAC language applies to new and existing dwelling and sleeping units that contain fuel-fired appliances or attached garages.
Where to Install CO Alarms
- Dwelling units, under NDAC 24.1-06-01-40.3: outside each separate sleeping area in the immediate vicinity of bedrooms.
- Dwelling units, under NDAC 24.1-06-01-40.3: on every habitable level. The subsection states no exclusion; the crawl space and uninhabitable attic carve-out sits one subsection away, in 24.1-06-01-40.1.a, which governs smoke alarms.
- Dwelling units, under NDAC 24.1-06-01-40.3: inside a bedroom or attached bathroom where a fuel-fired appliance is located in that room.
- Hotel and motel guest rooms are not in the list above and take a different rule. The State Electrical Board's carbon monoxide subsection is written for dwelling units, and lodging appears in the two subsections either side of it rather than in that one. A guest room is a sleeping unit under the adopted 2021 International Fire Code, so Section 915.2.2 puts the alarm inside the room, with a corridor position allowed only where the room and its attached bathroom hold no fuel-burning appliance and the room is not served by a forced-air furnace.
For detailed placement guidance beyond legal requirements, see where to place carbon monoxide detectors.
Device Requirements
- Listing pathways include UL 2034 for single-station alarms and UL 217 with UL 2034 for combination units in adopted code language.
- New construction pathways require primary building wiring power with battery backup in cited code provisions.
- Interconnection is required when multiple alarms are required in the same dwelling unit under cited code language.
Landlord and Tenant Responsibilities
Landlord: Owners in covered occupancies must install and maintain required detectors and provide operable devices at occupancy turnover. Provision: 24.1-06-01-40.3 carbon monoxide alarms. Subsection .1 is smoke alarms and .2 is heat alarms..
- Rental applicability is kept null here because the cited technical sections do not provide one explicit occupancy-allocation matrix for tenancies.
- The State Fire Code carries the International Fire Code statewide under NDAC 45-18-01-04, so the existing-building route at Section 1103.9 is available everywhere in North Dakota and does not wait on a city, township or county adopting a fire code of its own.
- IFC 112.4, the model code's violation penalty, is one of the sections NDAC 45-18-01-04 amends, so the consequence for a fire code violation is not the one printed in the model text.
Full North Dakota 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 North Dakota, whether you're a landlord or tenant.
Enforcement
Enforced by: North Dakota State Fire Marshal administration and local code officials through building and safety code enforcement pathways.
Enforcement typically occurs:
- During plan review, permit, and inspection workflow in covered code scenarios.
- During follow-up on reported missing or non-operational detectors.
What a Tenant Can Do in North Dakota
When a carbon monoxide alarm stops working in a rented home in North Dakota, these are the five routes a tenant can take and where each one comes from.
"Via general law" means the North Dakota 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 | No provision foundSearched: NDCC title 47, chapter 47-16, Leasing of Real Property, all forty-two sections read in full from the Legislative Council's chapter publication, with 47-16-13 and 47-16-13.1 through 47-16-13.7 read closely. The words withhold, escrow and counterclaim appear nowhere in the sixty-five pages of chapter 47-16, against one hundred occurrences of lessee and forty-four of landlord; that ratio is the control on this negative, and the same pull returned the full text of every section. What the 1977 block gives instead is litigation rather than leverage: 47-16-13.5 lets any aggrieved party recover appropriate damages subject to a duty to mitigate, and 47-16-13.6 makes those rights enforceable by action with attorney's fees to the prevailing party. A North Dakota tenant who stops paying is in default, and the money moves only after a court moves it. |
|---|---|
| Repair and deduct | Via general lawNDCC 47-16-13. Uncapped, one of five in the fifty-one, with Colorado, Louisiana, Oregon and South Dakota. No dollar figure, no fraction of a month's rent, no annual ceiling and no limit on how often it may be used appears anywhere in the section: the tenant repairs and deducts the expense from the rent, or recovers it in any other lawful manner from the lessor. What that costs is precision at the other end. The trigger is dilapidations which the lessor ought to repair, an 1877 phrase that only reaches a carbon monoxide alarm once it is read together with the 1977 duty list at 47-16-13.1, so the argument a tenant has to make is about scope rather than about limits. |
| Right to end the lease | Via general lawNDCC 47-16-17(1). Two routes, and the wording of the quieter one is unusually generous. 47-16-13(3) lets the tenant vacate and be discharged from further payment of rent or performance of other conditions, so it releases the rest of the lease obligations rather than the rent alone. 47-16-17(1) is the formal termination, available where the lessor does not within a reasonable time after request put the property into good condition or repair it. Read both against 47-16-13.7, which keeps a lessee evicted according to law liable for rent for the remainder of the term subject to the landlord's duty to mitigate: leaving without invoking one of the two routes is the expensive way to do this. 47-16-17.1 is status-based, for a victim of domestic violence, and belongs to a different question than this column asks. |
| Notice the tenant must give | Via general lawNDCC 47-16-13; NDCC 47-16-17(1). Notice from the lessee for the repair route, a request for the termination route, and the chapter prescribes a form for neither, nor any waiting period against the tenant. That silence stands out against what the same chapter does elsewhere: 47-16-15 wants a calendar month's written notice to end a month-to-month tenancy, and 47-16-17.1 specifies exactly what a domestic-violence notice must state and how it may be delivered. The notice that starts every remedy above is the least formal thing in chapter 47-16, which is a reason to put it in writing rather than a reason not to. |
| Landlord cure period | Via general lawNDCC 47-16-13.1(2). A reasonable time and no number, which is the ordinary answer here. The exception is worth reading closely. 47-16-13.1(2) allows that reasonable time only in case of noncompliance with subdivisions b through f of subsection 1, leaving out subdivision a, the duty to comply with applicable building and housing codes materially affecting health and safety. Subsection 3 then provides that where the subdivision a duty is greater than any other, the landlord's duty is determined by reference to subdivision a. Since North Dakota's alarm requirement lives in code, it enters through subdivision a, which on the face of the text is the one duty in the section the statute does not attach a grace period to. Two cautions before anyone relies on that: the repair-and-deduct route at 47-16-13 still runs on its own reasonable time after notice, so the practical gain is narrower than it looks, and this is a reading of the text rather than a settled rule. |
Applies to every row above:North Dakota is a Field Code state that later bolted a URLTA-shaped duty list onto its 1877 lease chapter, and the useful work in this row happens at the joins. 47-16-13, the repair-and-deduct, still speaks of dilapidations and has not been rewritten since the Civil Code of 1877. 47-16-13.1, added in 1977, is the modern landlord duty, and its list is open rather than closed: subdivision b requires whatever is necessary to keep the premises fit and habitable, and subdivision d reaches other facilities and appliances supplied or required to be supplied by the landlord. A carbon monoxide alarm has more than one way into that list, which is the opposite of the Arkansas and Colorado problem. Better still, North Dakota is one of the few states here whose alarm requirement is statewide and in code, at NDAC 24.1-06-01-40.3 and in the adopted residential code, where a fuel-fired appliance or an attached garage is present. That means subdivision a, comply with applicable building and housing codes materially affecting health and safety, carries the alarm into the landlord's statutory duty without waiting for a municipality to adopt anything. Chapter text was read from a January 2026 Wayback capture of the Legislative Council's own sixty-five page chapter PDF, because ndlegis.gov and legis.nd.gov both refuse connections from here.
What North Dakota Requires in Lodging
The North Dakota carbon monoxide requirement reaches hotels and short-term rentals.
Hotels already standing: covered too. The North Dakota requirement reaches an existing hotel and not only one being built.
Operator duty: A North Dakota hotel operator has a carbon monoxide duty wherever the hotel stands, and it comes from the State Fire Code. NDAC 45-18-01-04 provides that the code includes both the State Building Code effective 1 January 2023 and the International Fire Code, 2021 edition. Its amendments run over IFC chapters 1, 2, 3, 5, 8, 9, 10, 23 and 61, and inside chapter 9 they reach only Sections 903.2.8, 903.3.1.1.1, 903.3.5, 905.1.1 and 907.8.3, so Section 915 applies as published. It requires detection in Group I-1, I-2, I-4 and R occupancies, and Section 310.2 puts transient hotels and motels in Group R-1. Alarms belong in the guest rooms, which the section calls sleeping units, where a fuel-burning appliance or fireplace is present, a fuel-burning forced-air furnace serves the room, such an appliance sits elsewhere in the building with a communicating opening, or an attached private garage adjoins. Two definitions make the reach statewide: NDAC 45-18-01-02(1) says the chapter "applies to all persons without restrictions, unless specifically exempted", and NDAC 45-18-01-03(2) says "'City' or 'jurisdiction' refers to the state of North Dakota". Older buildings are covered too. In chapter 11 the state amends only Section 1103.5.1, leaving Section 1103.9 intact, and it does not touch IFC 102.1, so item 3 of that section still applies Chapter 11 to existing structures without anyone forming an opinion first. NDAC 45-18-01-02(2) adds that the chapter reaches existing conditions, with conditions legally in existence at adoption permitted to continue only where the state fire marshal is of the opinion that they do not constitute a distinct hazard to life or property. The building code adds a second layer in cities, townships and counties that elect to adopt and enforce it under NDAC 108-01-01-04(2), and an electing jurisdiction may amend that code to local needs, so an operator inside one should read the local amendments as well.
Penalties for Non-Compliance
No stand-alone statewide North Dakota fine table specific to carbon monoxide detector noncompliance was identified in the cited sections.
Cited sources describe technical requirements and enforcement via code compliance workflow.
Additional Notes
- Which layer answers your building decides which office to ask. The State Fire Code reaches every address in North Dakota; the building code reaches only the cities, townships and counties that elected to adopt and enforce one. The Department of Commerce publishes that list of enforcing jurisdictions in the code book, so a reader can look their own up and find out whether they are dealing with one layer or two.
- The carbon monoxide requirement sits in a wiring standard rather than in a building code, which is why power and interconnection are unusually specific here and why the enforcing official may be an electrical inspector rather than a building official.
- The carbon monoxide rule is scoped to dwelling units, and the subsections either side of it show the drafter had lodging in view. NDAC 24.1-06-01-40 is a State Electrical Board wiring standard that takes three alarm types in turn. Subsection 1 requires smoke alarms in dwelling units, congregate residences and hotel or lodging house guest rooms used for sleeping. Subsection 2 requires apartment houses, hotels and congregate residences to carry a manual and automatic fire alarm system. Subsection 3 turns to carbon monoxide and requires an approved alarm in dwelling units within which fuel-fired appliances are installed and in dwelling units with attached garages, placed outside each sleeping area, on every habitable level, and in each bedroom or attached bathroom holding a fuel-fired appliance. Hotels are named in the two subsections on either side and not in the carbon monoxide one.
- The state building code is elective, and that decides less than it looks like it decides. The 2023 North Dakota State Building Code, effective 1 January 2023, takes the 2021 International Codes, and its amendments cover Chapters 2, 3, 10, 11, 12, 16, 18, 29 and 33 without touching Chapter 9. Section 915.1.1 therefore stands as written and reaches Group R, which Section 310.2 defines to include transient hotels and motels. NDAC 108-01-01-04(2) applies that code only in the cities, townships and counties electing to adopt and enforce building codes, and NDAC 108-01-01-06 requires an electing jurisdiction to adopt the state code while leaving it free to amend to local needs. What that election governs is who administers a building code locally. It does not decide whether the carbon monoxide requirement reaches the building, because the State Fire Code arrives without being invited: NDAC 45-18-01-04 states that the State Fire Code includes both the fire-safe construction and operation provisions of the State Building Code and the 2021 International Fire Code, and 45-18-01-03(2) defines "jurisdiction" in that chapter as the state of North Dakota. So the fire code answers a hotel statewide and an electing town may add to that answer locally. The Department of Commerce publishes the list of enforcing jurisdictions in the code book itself, and a reader can look their own up on it to find out which of the two layers they are dealing with.
- A rented dwelling is inside the carbon monoxide rule on the same words as an owner-occupied one. NDAC 24.1-06-01-40(3) provides that "an approved carbon monoxide alarm shall be installed in dwelling units within which fuel-fired appliances are installed and in dwelling units that have attached garages", and then gives the three locations: outside each sleeping area in the immediate vicinity of the bedrooms, on every habitable level, and in each bedroom or its attached bathroom holding a fuel-fired appliance. The scope word is "dwelling units" and nothing in the subsection turns on who occupies one. That the drafter was sorting by occupancy type rather than by tenure is visible in the subsection above it, where the smoke alarm duty at 24.1-06-01-40(1) names "dwelling units, congregate residences, and hotel or lodging house guest rooms" separately. The section was effective 1 April 2017 and amended 1 October 2020 and 1 July 2024, under NDCC 43-09-05.
Official Sources & References
- North Dakota Administrative Code chapter 24.1-06-01 , 24.1-06-01-40.3 carbon monoxide alarms. Subsection .1 is smoke alarms and .2 is heat alarms. (state code, accessed 2026-08-20)
Primary statewide technical requirements for trigger, placement, power, and interconnection pathways. Re-read 2026-08-20 from Cornell LII, which reproduces the chapter, because ndlegis.gov timed out from this network, as the chapter note below already logged. Subsection 3 requires an approved alarm in dwelling units with fuel-fired appliances or attached garages, in three places: "a. Outside each sleeping area in the immediate vicinity of the bedrooms. b. On every habitable level. c. In each bedroom or its attached bathroom within which a fuel-fired appliance is located." Nothing is excluded from the count. The exclusion that circulates with this rule belongs to the smoke alarm subsection immediately above it. Subsection 1.a requires a smoke alarm "on each additional story of the dwelling, including basements and habitable attics but not including crawl spaces and uninhabitable attics". One section of North Dakota code therefore carries both the exclusion list and the rule that does not use it, two subsections apart, which is why a summary that cites the section without its subsection number tends to publish the wrong one. - North Dakota state building code book 2023 , Scope of the State Building Code; 2021 International Building Code Amendments; Code Enforcing Jurisdictions as of 2023; Administrative Rule Article 108, Chapter 108-01 (building code, accessed 2026-08-04)
Sets the state building code at the 2021 editions of the IBC, IRC, IMC, IFGC, IECC and IEBC effective 1 January 2023. Reproduces NDAC 108-01-01-04, whose subsection 2 applies the code to cities, townships and counties that elect to adopt and enforce building codes, and NDAC 108-01-01-06, which requires an electing jurisdiction to adopt the state code and permits local amendment. The building-code amendments run over Chapters 2, 3, 10, 11, 12, 16, 18, 29 and 33 and never reach Chapter 9: "915" returns zero across the book while "Group R" returns five, so the absence is a real absence. Also states that the state building code excludes the International Fire Code, which each jurisdiction must adopt separately, and publishes the list of code-enforcing jurisdictions. Read 2026-08-04 from the Internet Archive capture of 15 December 2022, which is the code effective 1 January 2023; commerce.nd.gov and ndlegis.gov both refuse direct requests. - North Dakota Century Code official index , Official Century Code publication and access pathway (state code, accessed 2026-02-17)
Legislative publication reference used for statute-verification workflow in compliance files. - North Dakota Century Code title 43 professional and occupational licensing , Title-level context used for code authority cross-reference (state code, accessed 2026-02-17)
Additional official code context for enforcement and implementation mapping. - NDAC chapter 45-18-01, State Fire Code, Office of the Insurance Commissioner , NDAC 45-18-01-02 application, NDAC 45-18-01-03(2) definitions, NDAC 45-18-01-04 codes adopted (fire code, accessed 2026-08-24)
The instrument behind both North Dakota values, and re-read live on 2026-08-24 rather than from the Wayback snapshot this row cites: ndlegis.gov refuses connections from here to a direct fetch, and r.jina.ai in front of the same URL serves the chapter. That reading confirmed the edition is current and added its date, and confirmed a zero the record had only inferred: "carbon monoxide" appears nowhere in the chapter. 45-18-01-04 provides that the State Fire Code includes the State Building Code effective 1 January 2023 and the International Fire Code, 2021 edition, effective 1 January 2024; its amendments run over IFC chapters 1, 2, 3, 5, 8, 9, 10, 23 and 61, reaching only Sections 903.2.8, 903.3.1.1.1, 903.3.5, 905.1.1 and 907.8.3 inside chapter 9 and only Section 1103.5.1 inside chapter 11, so Sections 915 and 1103.9 both apply as published. IFC 102.1 is not amended at all, so item 3 still applies Chapter 11 to existing structures. 45-18-01-02(1) applies the chapter "to all persons without restrictions" and 45-18-01-03(2) defines "city" and "jurisdiction" as the state of North Dakota. Item 1 of 45-18-01-04 is the sentence that makes the elective building code beside the point for this question: the State Fire Code includes the State Building Code's provisions "providing for fire-safe construction and operation, as provided for in North Dakota Century Code section 54-21.3-03", so those provisions travel with the fire code rather than waiting on a town to adopt a building code. Re-read 2026-08-08 at 74,614 bytes over 7 pages, 8,768 normalised characters. Controls on that copy: "915" 0 and "1103.9" 0 against "1103.5.1" 1 and "102.4" present, so the amendments that do exist were found and the two absences are real. The chapter itself is effective 1 January 2024. ndlegis.gov does not answer automated requests; this is the Internet Archive replay. - NDAC 24.1-06-01-40(3), State Electrical Board, carbon monoxide alarm requirement (read from the Internet Archive capture of 12 October 2025, ndlegis.gov refusing this network) (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
In North Dakota files, which code citation should appear first for alarm authority?
Where must alarms be installed in covered North Dakota dwellings?
What power and interconnection rules apply in North Dakota?
Is there a statewide North Dakota fine table for CO alarm violations?
What records should North Dakota teams keep before exempting an all-electric unit?
How does North Dakota compare with South Dakota regional workflows?
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