Dataset
Building code, workplace, tenancy, school, child care, warranty and real estate disclosure rules on radon for each province and territory, cited and dated.
800
Bq/m³Annual average radon limit for employees other than nuclear energy workers in federally regulated workplaces, under the Canada Occupational Health and Safety Regulations, s. 10.26(4). SOR/2026-10 lowers it to 200 Bq/m³ on 30 January 2027.
This table sets out what federal, provincial and territorial rules require about radon, one rule per row. It covers building codes, workplaces, tenancy, schools and child care, new home warranties, real estate disclosure, certification, legislation and workers’ compensation. We checked every row on 17 and 18 September 2026. Health Canada’s 200 Bq/m³ guideline is health advice that sets no legal limit for homes, and provinces and territories hold the main legal powers.
See what the rules add up to in the radon law guide
Building codes do not treat radon the same way. The National Building Code has called for a capped rough-in since 2010.
British Columbia requires the pipe to run outside. Ontario requires a subfloor depressurization rough-in, and its building officials’ association says all Part 9 homes also need a separate membrane air barrier. Quebec’s code has used a threshold of 200 Bq/m³ since 2021. Each code row cites the code it comes from.
Find out what a new home’s code requires in the new homes guide
No rental statute in Canada is written for radon. Tenancy law reaches it through the landlord’s duty to keep a home in good repair and fit to live in.
Tribunals have applied those duties to radon in one Ontario decision and four Quebec decisions. The Ontario and Quebec rows cite those decisions.
See what tenants can do in the rentals and condos guide
There is no licensing system for radon testers or mitigators in Canada. Certification through C-NRPP is voluntary, and no province regulates radon professionals. The table records this once, for Canada as a whole. If you hire someone to test or fix radon, their certification is the record you can check.
Check a radon professional’s certification yourself with the hiring guide
Every row cites the statute, code, decision or regulator it comes from, with the date we checked it. We started from Health Canada’s Policies for specific locations and Reduction actions pages. Then we traced each row to its primary source where one exists.
Each row also carries a status. Alberta’s Radon Awareness and Testing Act, for example, is passed but not in force. The status column holds one of six values:
You may reuse the table under CC BY 4.0. Download it as CSV or JSON below.
See how to reuse and credit the table under the data licence
Fields in this dataset
| Column | Type | Description |
|---|---|---|
| id | string | The rule's slug: jurisdiction, rule type, instrument. |
| jurisdiction | string | Province or territory slug, or canada. |
| topic | string | The rule type. |
| summary | string | What the rule says, in plain words, as the source states it. |
| citation | string | The instrument: statute, regulation, code edition, article or decision. |
| authority | string | Who made or applies the rule. |
| status | string | in-force, passed-not-in-force, guidance, decision, none, or not-verified. |
| effective_date | date | The date the instrument took effect, where the source gives one. |
| url | string | The instrument or the authority's page. |
| note | string | Limits of the row, including claims left unpublished. |
| source_text | string | The primary source the row is transcribed from. |
| source_url | string | That source's address. |
| date_checked | date | The date the source was read. |
Radon building codes, laws and regulations by province and territory
One record per rule: what each jurisdiction's law, building code, regulator, warranty authority or tribunal requires or has decided about radon, by rule type (guideline, building code, technical standard, new home warranty, professional certification, radon-specific legislation, workplace, workers' compensation, rental housing, schools and child care, real estate disclosure, municipal liability), with its instrument, authority, status, effective date and primary source. Federal and national rules appear under Canada.
| id | jurisdiction | topic | summary | citation | authority | status | effective_date | url | note | source_text | source_url | date_checked |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| canada-building-code-nbc-rough-in | canada | building-code | The radon rough-in with a capped stub was added to the National Building Code in 2010 and adopted by several provinces and territories. A rough-in is not a working mitigation system; code compliance does not guarantee a level below 200 Bq/m³, and only testing shows the actual level. Health Canada says current best practice calls for more complete systems. | National Building Code of Canada, radon rough-in provisions (2010 edition onward) | National Research Council, adopted province by province | in-force | 2010-01-01 | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/reduction-actions.html | A claim that the 2025 National Building Code adds a passive stack for all homes rests on an industry backgrounder and is not published until the NRC code text is read (Ben's list item 47). | Health Canada, Radon action guide for provinces and territories: Reduction actions | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/reduction-actions.html | 2026-09-17 |
| canada-certification-voluntary | canada | certification | Canada has no licensing system for radon testers or mitigators. Health Canada recommends professionals certified through C-NRPP, but certification is voluntary, and no province has regulated radon professionals even though provinces have that power. | No licensing statute; C-NRPP certification is voluntary | Health Canada | none | no data | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/reduction-actions.html | no data | Health Canada, Radon action guide for provinces and territories: Reduction actions | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/reduction-actions.html | 2026-09-17 |
| canada-disclosure-latent-defect | canada | disclosure | High radon is treated as a latent defect by many real estate councils and associations; licensees must disclose known latent defects and help clients negotiate who pays for testing and mitigation. No province requires a radon test before a resale closes. Property disclosure statements in Nova Scotia, New Brunswick, Quebec and British Columbia include a radon line. | Latent defect disclosure duties under provincial real estate regulation | Health Canada (summary of real estate councils) | guidance | no data | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | no data | Health Canada, Radon action guide for provinces and territories: Policies for specific locations | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | 2026-09-17 |
| canada-guideline-200 | canada | guideline | The 200 Bq/m³ guideline is a federal health guideline, not a general legal limit for homes. For an ordinary existing home, no Canadian law requires testing, and none requires mitigation when a result exceeds 200 Bq/m³. | Government of Canada radon guideline, 200 Bq/m³ | Health Canada | guidance | no data | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/reduction-actions.html | no data | Health Canada, Radon action guide for provinces and territories: Reduction actions | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/reduction-actions.html | 2026-09-17 |
| canada-municipal-liability | canada | municipal-liability | Once a local government decides to inspect building plans and construction, it owes a common law duty of care, and courts have found cities liable where inspectors failed to find design and construction flaws. A municipality is not automatically liable whenever a building tests high; the limits vary by province. | Rothfield v. Manolakos [1989] 2 SCR 1259; Just v. British Columbia, 1989 CanLII 16 (SCC); Ingles v. Tutkaluk Construction Ltd., 2000 SCC 12 | Health Canada (summary of the common law) | decision | no data | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/municipal-law.html | no data | Health Canada, Radon action in municipal law | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/municipal-law.html | 2026-09-18 |
| canada-schools-child-care-none | canada | schools-child-care | No Canada-wide law requires radon testing in schools or child care. Health Canada documents testing initiatives across provinces, but testing programs are not legal requirements. | No Canada-wide statute | Health Canada (summary) | none | no data | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | no data | Health Canada, Radon action guide for provinces and territories: Policies for specific locations | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | 2026-09-17 |
| canada-standard-cgsb-149-11 | canada | standard | Health Canada identifies the 2019 CGSB standard as the recognized Canadian mitigation standard and recommends that building codes reference it. CARST describes three protection levels: Level 1, a rough-in for active soil depressurization; Level 2, Level 1 plus a full passive vertical radon stack; Level 3, Level 2 plus a fan. Most provinces require protection similar to Level 1. A standard is not law unless a code or regulation adopts it. | CGSB, Radon control options for new construction in low-rise residential buildings (2019) | Canadian General Standards Board; levels described by CARST | guidance | no data | https://carst.ca/New-Residential-Construction | no data | Canadian Association of Radon Scientists and Technologists, New Residential Construction Standard | https://carst.ca/New-Residential-Construction | 2026-09-17 |
| canada-tenancy-habitability | canada | tenancy | Every province and territory has tenancy law requiring rental housing to be habitable and in good repair. There is no radon-specific statute requiring rental homes to be tested; tenants rely on general repair and habitability rules. Tenants are separately protected by occupiers' liability law. | Provincial and territorial tenancy legislation (habitability and repair duties) | Health Canada (summary) | guidance | no data | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | no data | Health Canada, Radon action guide for provinces and territories: Policies for specific locations | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | 2026-09-18 |
| canada-workers-compensation-overview | canada | workers-compensation | Alberta, Nova Scotia, and Newfoundland and Labrador list diseases caused by ionizing radiation. British Columbia is the province Health Canada identifies as listing radon and lung cancer by name. | Provincial workers' compensation disease schedules | Health Canada (summary of provincial schedules) | guidance | no data | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | no data | Health Canada, Radon action guide for provinces and territories: Policies for specific locations | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | 2026-09-17 |
| canada-workplace-cohsr-10-26 | canada | workplace | The federal workplace regulation bars exposure of employees, other than nuclear energy workers, to a yearly average above 800 Bq/m³. SOR/2026-10, registered 30 January 2026 and published in the Canada Gazette on 11 February 2026, replaces the limit with 200 Bq/m³ and makes it the employer's duty, in force on 30 January 2027. Part II of the Canada Labour Code covers about 1.3 million employees, roughly 8% of the workforce. | Canada Occupational Health and Safety Regulations, SOR/86-304, s. 10.26(4); amended by SOR/2026-10 | Government of Canada (Canada Labour Code, Part II) | in-force | 2027-01-30 | https://gazette.gc.ca/rp-pr/p2/2026/2026-02-11/html/sor-dors10-eng.html | The 800 Bq/m³ limit stands until 30 January 2027; the effective date is the amendment's. | Canada Gazette, Part II, SOR/2026-10 (11 February 2026) | https://gazette.gc.ca/rp-pr/p2/2026/2026-02-11/html/sor-dors10-eng.html | 2026-09-17 |
| british-columbia-building-code-2024-rough-in | british-columbia | building-code | A radon rough-in is required province-wide for Part 9 houses, for building permits applied for on or after 8 March 2024; houses designed under Parts 5 and 6 for radon protection are the exception. The radon vent pipe must extend to the exterior. An active system with a fan is not required. Regional exemptions were ended because new data showed radon in many areas previously thought low risk. | 2024 BC Building Code; Information Bulletin B24-03-R (revised 8 January 2025) | Government of British Columbia, Building and Safety Standards Branch | in-force | 2024-03-08 | https://www2.gov.bc.ca/assets/gov/farming-natural-resources-and-industry/construction-industry/building-codes-and-standards/bulletins/2024-code/b24-03-r_radon.pdf | no data | Government of British Columbia, Information Bulletin B24-03-R: Radon Rough-in Requirements | https://www2.gov.bc.ca/assets/gov/farming-natural-resources-and-industry/construction-industry/building-codes-and-standards/bulletins/2024-code/b24-03-r_radon.pdf | 2026-09-17 |
| british-columbia-child-care-interior-health-2017 | british-columbia | schools-child-care | BC's Interior Health Authority ordered child care facilities to test for radon in 2017, using its licensing powers. A regional licensing measure, not a province-wide law. | Interior Health Authority order (2017) under the Community Care and Assisted Living Act | Interior Health Authority | in-force | 2017-01-01 | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | The effective year is the order's; the month is not stated by the source. | Health Canada, Radon action guide for provinces and territories: Policies for specific locations | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | 2026-09-17 |
| british-columbia-disclosure-bcfsa | british-columbia | disclosure | A known radon reading of 200 Bq/m³ or more is a material latent defect that must be disclosed to buyers and tenants; buyers' agents should ask whether a test exists and see it. There is no legal requirement to test before selling. Once a home is mitigated, the previous reading no longer has to be volunteered, but agents must answer a direct question honestly or decline to answer. | Real Estate Services Rules, ss. 30 and 59; BCFSA Radon Precautions Guidelines (30 July 2020) | BC Financial Services Authority | in-force | 2020-07-30 | https://www.bcfsa.ca/industry-resources/real-estate-professional-resources/knowledge-base/guidelines/radon-precautions-guidelines | no data | BC Financial Services Authority, Radon Precautions Guidelines | https://www.bcfsa.ca/industry-resources/real-estate-professional-resources/knowledge-base/guidelines/radon-precautions-guidelines | 2026-09-18 |
| british-columbia-workers-compensation-radon | british-columbia | workers-compensation | British Columbia lists radon and lung cancer by name in its workers' compensation schedule. | WorkSafeBC occupational disease schedule | WorkSafeBC, as summarised by Health Canada | in-force | no data | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | no data | Health Canada, Radon action guide for provinces and territories: Policies for specific locations | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | 2026-09-17 |
| alberta-building-code-nbc-2023-ae | alberta | building-code | The National Building Code, 2023 Alberta Edition has been the enforceable code since 1 May 2024, carrying the National Building Code's radon rough-in provisions. Any reference to Alberta following the 2019 edition is historical. | National Building Code, 2023 Alberta Edition | Government of Alberta | in-force | 2024-05-01 | https://www.alberta.ca/building-codes-and-standards | no data | Government of Alberta, Building codes and standards | https://www.alberta.ca/building-codes-and-standards | 2026-09-17 |
| alberta-disclosure-reca | alberta | disclosure | A test over 200 Bq/m³ is a material latent defect that must be disclosed unless a mitigation system goes in before listing. RECA suggests buyers discount the offer by the mitigation cost or use a holdback released on a low result, and test within 90 days of possession either way. Radon became part of relicensing requirements in 2019. | RECA radon guidance and checklists for licensees | Real Estate Council of Alberta | guidance | no data | https://www.reca.ca/2025/05/01/raising-your-clients-radon-awareness/ | no data | Real Estate Council of Alberta, Raising Your Client's Radon Awareness (2025) | https://www.reca.ca/2025/05/01/raising-your-clients-radon-awareness/ | 2026-09-17 |
| alberta-legislation-radon-awareness-and-testing-act | alberta | legislation | Received royal assent in 2017 but has never been proclaimed. If proclaimed, it would require child care applicants to provide a radon test done within the past year before a licence is issued or renewed, and a reduction plan if levels are too high. Alberta Health has said the Act waits for proclamation, has no expiry, and that the province considers voluntary testing sufficient. | Radon Awareness and Testing Act, SA 2017, c R-2.5 | Legislature of Alberta | passed-not-in-force | no data | https://www.canlii.org/en/ab/laws/stat/sa-2017-c-r-2.5/latest/sa-2017-c-r-2.5.html | no data | CanLII, Radon Awareness and Testing Act, SA 2017, c R-2.5 | https://www.canlii.org/en/ab/laws/stat/sa-2017-c-r-2.5/latest/sa-2017-c-r-2.5.html | 2026-09-17 |
| alberta-workers-compensation-ionizing-radiation | alberta | workers-compensation | Alberta lists diseases caused by ionizing radiation. | Alberta workers' compensation disease schedule | Workers' Compensation Board Alberta, as summarised by Health Canada | in-force | no data | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | no data | Health Canada, Radon action guide for provinces and territories: Policies for specific locations | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | 2026-09-17 |
| saskatchewan-building-code-follows-nbc | saskatchewan | building-code | Health Canada lists Saskatchewan as following the National Building Code, which carries the radon rough-in provisions. Adoption dates and local amendments differ, so the edition in force should be checked before calling any requirement current. | National Building Code of Canada, as adopted | Provincial or territorial government, as listed by Health Canada | in-force | no data | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | no data | Health Canada, Radon action guide for provinces and territories: Policies for specific locations | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | 2026-09-17 |
| manitoba-building-code-follows-nbc | manitoba | building-code | Health Canada lists Manitoba as following the National Building Code, which carries the radon rough-in provisions. Adoption dates and local amendments differ, so the edition in force should be checked before calling any requirement current. | National Building Code of Canada, as adopted | Provincial or territorial government, as listed by Health Canada | in-force | no data | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | no data | Health Canada, Radon action guide for provinces and territories: Policies for specific locations | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | 2026-09-17 |
| ontario-building-code-o-reg-163-24 | ontario | building-code | Ontario's current code came into force 1 January 2025 and revoked the 2012 code. New houses require a rough-in for a subfloor depressurization system, and all permit applications from 1 April 2025 must use the 2024 code; the building officials' association says a sub-slab depressurization rough-in is required for all Part 9 residential uses, along with a separate membrane air barrier. The 2012 code applied radon provisions only where radon was "known to be a problem"; that rule is historical, though it still governs some transition projects. | O. Reg. 163/24: Building Code (adopting the National Building Code 2020 with Ontario amendments) | Government of Ontario | in-force | 2025-01-01 | https://www.ontario.ca/laws/regulation/240163 | no data | Ontario e-Laws, O. Reg. 163/24: Building Code | https://www.ontario.ca/laws/regulation/240163 | 2026-09-17 |
| ontario-disclosure-tresa-spis | ontario | disclosure | Sellers must disclose known latent defects that make a home unsafe, and TRESA Phase 2 put separate disclosure duties on agents. The Seller Property Information Statement is voluntary, and its environmental question names radon gas as an example. | Trust in Real Estate Services Act, Phase 2 (in force 1 December 2023); OREA Seller Property Information Statement (voluntary) | Real Estate Council of Ontario | in-force | 2023-12-01 | https://www.reco.on.ca/consumers/information-for-sellers/property-information-statements/ | no data | Real Estate Council of Ontario, Property information statements | https://www.reco.on.ca/consumers/information-for-sellers/property-information-statements/ | 2026-09-17 |
| ontario-tenancy-cet-67599-17 | ontario | tenancy | The tribunal held that radon above Health Canada's guideline breached the landlord's duty to keep the unit in good repair. A tenancy tribunal decision, not court precedent. | Landlord and Tenant Board, CET-67599-17 (Re), 2017 CanLII 60362 | Ontario Landlord and Tenant Board, as listed by Health Canada | decision | no data | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | no data | Health Canada, Radon action guide for provinces and territories: Policies for specific locations | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | 2026-09-18 |
| ontario-warranty-tarion-fh-1-19 | ontario | warranty | Radon in a new home shall not exceed 200 Bq/m³. Repairs are required where a long-term test of 91 days or more, conducted in the lowest level, exceeds 200 Bq/m³ and the exceedance results from a Building Code violation or a defect in the builder's work or materials. Coverage runs one year for workmanship and materials, two years for Code health and safety violations and seven years for major structural defect, and stays with the home for seven years from original possession. Up to $50,000 where the purchase agreement was signed after 1 February 2021, otherwise $15,000. An approved do-it-yourself kit or a certified professional may run the test. | Tarion Construction Performance Guidelines, 5th Edition, article FH 1.19 Radon Exceeds Acceptable Levels (added 24 May 2024; process in effect since 2013) | Tarion | in-force | 2024-05-24 | https://home-explorer.tarion.com/node/538 | no data | Tarion, Construction Performance Guidelines, article FH 1.19 Radon Exceeds Acceptable Levels | https://home-explorer.tarion.com/node/538 | 2026-09-18 |
| ontario-workplace-norm-guidance | ontario | workplace | Ontario applies the Canadian NORM Guidelines to all workplaces through its general duty clause and tells employers to reduce radon below 200 Bq/m³ through engineering controls where possible. Ontario's mines regulation (RRO 1990, Reg. 854) addresses radon at sections 288 to 293; those duties are not transcribed here until the regulation text is read. | Ontario guidance, Radon in the workplace (applying the Canadian NORM Guidelines under the general duty clause) | Government of Ontario | guidance | no data | https://www.ontario.ca/page/radon-workplace | no data | Government of Ontario, Radon in the workplace | https://www.ontario.ca/page/radon-workplace | 2026-09-17 |
| quebec-building-code-rbq-2021 | quebec | building-code | In 2021 the RBQ changed the Construction Code's maximum radon threshold from 800 to 200 Bq/m³, referring to Health Canada's level. The amendment added a vertical passive radon exhaust stack to the rough-in already required; the regulatory impact analysis describes a basic pipe infrastructure to be completed with a passive or active system if indoor radon exceeds the threshold. | Construction Code (Quebec), radon amendment announced 24 November 2021 | Régie du bâtiment du Québec | in-force | 2021-11-24 | https://www.rbq.gouv.qc.ca/salle-de-presse/les-nouvelles/nouvelles-detail/item/2021-11-24-communique-mois-de-prevention-du-radon-un-rehaussement-des-exigences-en-construction-en-cours/ | Health Canada's summary also says Quebec requires test results to be submitted to the authority having jurisdiction; that detail stays unpublished until article 9.13.4 of the Code is checked (O-017). The effective date is the announcement's. | Régie du bâtiment du Québec, communiqué du 24 novembre 2021 | https://www.rbq.gouv.qc.ca/salle-de-presse/les-nouvelles/nouvelles-detail/item/2021-11-24-communique-mois-de-prevention-du-radon-un-rehaussement-des-exigences-en-construction-en-cours/ | 2026-09-17 |
| quebec-disclosure-oaciq | quebec | disclosure | The seller's declaration form includes a radon line, and OACIQ publishes guidance on keeping radon from derailing a transaction. Quebec's civil law system differs from the common law elsewhere in Canada. | OACIQ seller declarations form (radon line); OACIQ guidance on radon in transactions | Organisme d'autoréglementation du courtage immobilier du Québec | guidance | no data | https://www.oaciq.com/en/articles/how-to-prevent-radon-from-affecting-your-real-estate-transaction | no data | OACIQ, How to prevent radon from affecting your real estate transaction | https://www.oaciq.com/en/articles/how-to-prevent-radon-from-affecting-your-real-estate-transaction | 2026-09-17 |
| quebec-tenancy-decisions | quebec | tenancy | Four Quebec tenancy decisions in which radon above Health Canada's guideline was held to breach the landlord's repair and habitability obligations. Tenancy tribunal decisions, not court precedent. | Barak c. Osterrath, 2012 CanLII 150609; Pickard c. Arnold, 2015 CanLII 129833; Bramley c. Vanwynsberghe, 2017 QCRDL 11313; Vanderwerf c. Dolan, 2019 QCRDL 37417 | Tribunal administratif du logement (and its predecessor), as listed by Health Canada | decision | no data | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | no data | Health Canada, Radon action guide for provinces and territories: Policies for specific locations | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | 2026-09-18 |
| new-brunswick-building-code-follows-nbc | new-brunswick | building-code | Health Canada lists New Brunswick as following the National Building Code, which carries the radon rough-in provisions. Adoption dates and local amendments differ, so the edition in force should be checked before calling any requirement current. | National Building Code of Canada, as adopted | Provincial or territorial government, as listed by Health Canada | in-force | no data | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | no data | Health Canada, Radon action guide for provinces and territories: Policies for specific locations | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | 2026-09-17 |
| new-brunswick-disclosure-form | new-brunswick | disclosure | The property disclosure statement includes a radon line, and the association endorses holdbacks where no long-term test exists. | New Brunswick property disclosure statement (radon line) | New Brunswick Real Estate Association | guidance | no data | https://www.nbrea.ca/radon-what-you-need-to-know/ | no data | New Brunswick Real Estate Association, Radon: What you need to know | https://www.nbrea.ca/radon-what-you-need-to-know/ | 2026-09-17 |
| new-brunswick-workplace-underground-mine-regulation | new-brunswick | workplace | Mining-specific radon rules apply under the Underground Mine Regulation. | New Brunswick Underground Mine Regulation | Government of New Brunswick, as listed by Health Canada | in-force | no data | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | no data | Health Canada, Radon action guide for provinces and territories: Policies for specific locations | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | 2026-09-17 |
| nova-scotia-building-code-follows-nbc | nova-scotia | building-code | Health Canada lists Nova Scotia as following the National Building Code, which carries the radon rough-in provisions. Adoption dates and local amendments differ, so the edition in force should be checked before calling any requirement current. | National Building Code of Canada, as adopted | Provincial or territorial government, as listed by Health Canada | in-force | no data | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | no data | Health Canada, Radon action guide for provinces and territories: Policies for specific locations | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | 2026-09-17 |
| nova-scotia-disclosure-form | nova-scotia | disclosure | The property disclosure statement includes a radon line; the Commission has issued radon duties for licensees. | Nova Scotia property disclosure statement (radon line) | Nova Scotia Real Estate Commission | guidance | no data | https://www.nsrec.ns.ca/consumers/your-transaction/defects-disclosures | no data | Nova Scotia Real Estate Commission, defects and disclosures | https://www.nsrec.ns.ca/consumers/your-transaction/defects-disclosures | 2026-09-17 |
| nova-scotia-workers-compensation-ionizing-radiation | nova-scotia | workers-compensation | Nova Scotia lists diseases caused by ionizing radiation. | Nova Scotia workers' compensation disease schedule | Workers' Compensation Board of Nova Scotia, as summarised by Health Canada | in-force | no data | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | no data | Health Canada, Radon action guide for provinces and territories: Policies for specific locations | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | 2026-09-17 |
| prince-edward-island-building-code-nbc-2020 | prince-edward-island | building-code | Prince Edward Island adopted the 2020 National Building Code in 2020; Health Canada lists PEI as following the National Building Code in major municipalities. | National Building Code 2020, adopted 2020 | Government of Prince Edward Island | in-force | 2020-01-01 | https://www.princeedwardisland.ca/en/information/health-and-wellness/radon | The effective year is the adoption year; the source gives no day. | Government of Prince Edward Island, Radon | https://www.princeedwardisland.ca/en/information/health-and-wellness/radon | 2026-09-17 |
| newfoundland-and-labrador-building-code-follows-nbc | newfoundland-and-labrador | building-code | Health Canada lists Newfoundland and Labrador as following the National Building Code, which carries the radon rough-in provisions. Adoption dates and local amendments differ, so the edition in force should be checked before calling any requirement current. | National Building Code of Canada, as adopted | Provincial or territorial government, as listed by Health Canada | in-force | no data | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | no data | Health Canada, Radon action guide for provinces and territories: Policies for specific locations | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | 2026-09-17 |
| newfoundland-and-labrador-workers-compensation-ionizing-radiation | newfoundland-and-labrador | workers-compensation | Newfoundland and Labrador lists diseases caused by ionizing radiation. | Newfoundland and Labrador workers' compensation disease schedule | WorkplaceNL, as summarised by Health Canada | in-force | no data | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | no data | Health Canada, Radon action guide for provinces and territories: Policies for specific locations | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | 2026-09-17 |
| yukon-building-code-follows-nbc | yukon | building-code | Health Canada lists Yukon as following the National Building Code, which carries the radon rough-in provisions. Adoption dates and local amendments differ, so the edition in force should be checked before calling any requirement current. | National Building Code of Canada, as adopted | Provincial or territorial government, as listed by Health Canada | in-force | no data | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | no data | Health Canada, Radon action guide for provinces and territories: Policies for specific locations | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | 2026-09-17 |
| yukon-workplace-occupational-health-regulations | yukon | workplace | Yukon's Occupational Health Regulations cover workplace radon. | Yukon Occupational Health Regulations | Government of Yukon, as listed by Health Canada | in-force | no data | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | no data | Health Canada, Radon action guide for provinces and territories: Policies for specific locations | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | 2026-09-17 |
| northwest-territories-building-code-follows-nbc | northwest-territories | building-code | Health Canada lists the Northwest Territories as following the National Building Code, which carries the radon rough-in provisions. Adoption dates and local amendments differ, so the edition in force should be checked before calling any requirement current. | National Building Code of Canada, as adopted | Provincial or territorial government, as listed by Health Canada | in-force | no data | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | no data | Health Canada, Radon action guide for provinces and territories: Policies for specific locations | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | 2026-09-17 |
| northwest-territories-workplace-mine-health-and-safety | northwest-territories | workplace | Mining-specific radon rules apply under the Mine Health and Safety Regulations. | Northwest Territories Mine Health and Safety Regulations | Government of the Northwest Territories, as listed by Health Canada | in-force | no data | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | no data | Health Canada, Radon action guide for provinces and territories: Policies for specific locations | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | 2026-09-17 |
| nunavut-building-code-follows-nbc | nunavut | building-code | Health Canada lists Nunavut as following the National Building Code, which carries the radon rough-in provisions. Adoption dates and local amendments differ, so the edition in force should be checked before calling any requirement current. | National Building Code of Canada, as adopted | Provincial or territorial government, as listed by Health Canada | in-force | no data | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | no data | Health Canada, Radon action guide for provinces and territories: Policies for specific locations | https://www.canada.ca/en/health-canada/services/health-risks-safety/radiation/radon/action-guides/provinces-territories/policies-specific-locations.html | 2026-09-17 |
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Health Canada, Radon action guide for provinces and territories: Policies for specific locations.
SIUYA INC. data is licensed under a Creative Commons Attribution 4.0 International licence .
Canadian Radon Services Index (2026). Radon building codes, laws and regulations by province and territory [Data set]. SIUYA INC. https://canadianradonservicesindex.ca/data/radon-rules/
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