Radon rules for child care, schools, and renters

Child care Testing required

“Child care facilities shall be tested for radon within six months of occupancy by an individual meeting the requirements outlined in 4 CCR 754-1, Radon Professionals Rules and Regulations.”¹

6 CCR 1010-7 (PDF)

Schools Testing required

“All schools shall be tested for radon following the procedures described in the American Association of Radon Scientists and Technologists’ Protocol for Conducting Measurements of Radon and Radon Decay Products in Schools and Large Buildings.”²

6 CCR 1010-6, section 6.8.4 (PDF)

Renters Disclosure required

“BEFORE SIGNING A LEASE AGREEMENT FOR RESIDENTIAL REAL PROPERTY, THE LANDLORD SHALL DISCLOSE AND PROVIDE IN WRITING TO THE TENANT THE FOLLOWING INFORMATION IN A DOCUMENT THAT THE TENANT SIGNS TO ACKNOWLEDGE RECEIPT OF THE DISCLOSURE:”³

section 38-12-803, Colorado Revised Statutes (PDF)

Renters Tenant may void the lease

“A TENANT MAY VOID A LEASE AGREEMENT AND VACATE THE PREMISES IN ACCORDANCE WITH SECTION 38-12-507 IF THE LANDLORD FAILS TO: (I) PROVIDE THE WRITTEN DISCLOSURES DESCRIBED IN SUBSECTION (2) OF THIS SECTION; OR” “(II) MAKE A REASONABLE EFFORT TO MITIGATE RADON WITHIN ONE HUNDRED EIGHTY DAYS AFTER BEING NOTIFIED THAT A RADON MEASUREMENT PROFESSIONAL HAS DETERMINED THE AIR CONCENTRATION OF RADON IS FOUR PICOCURIES PER LITER OR MORE.” “ON OR AFTER JANUARY 1, 2026, THIS SUBSECTION (3) DOES NOT APPLY TO A LEASE AGREEMENT THAT IS ONE YEAR OR LESS IN DURATION.”³

section 38-12-803(3), Colorado Revised Statutes (PDF)

Child care Testing required (basement or first floor)

“If the child care center or group child care home uses the basement level or the first floor of a building, a minimum of one radon test shall be conducted using a device or service listed by one of the national radon proficiency programs except if the facility is subject to” “the requirements related to radon testing in school buildings pursuant to section 10-220 of the Connecticut General Statutes and regulations adopted pursuant to section 19a-37b of the Connecticut General Statutes.”⁴

R.C.S.A. §§ 19a-79-1 to 19a-79-13, §19a-79-7a (PDF)

Schools Testing required

“Public schools in Connecticut who serve grades K - 12 are required to test for radon in air pursuant to Connecticut General Statutes (CGS)”⁵

CGS § 10-220(d)(2)

Renters Condition report on lease with option to buy

“Except as otherwise provided in this section, each person who offers residential property in the state for sale, exchange or for lease with option to buy, shall provide a written residential condition report to the prospective purchaser at any time prior to the prospective purchaser's execution of any binder, contract to purchase, option or lease containing a purchase option.” “Information concerning environmental matters such as lead, radon, subsurface sewage disposal, flood hazards”⁶

Sec. 20-327b (PDF)

Child care Testing required every 5 years

“A licensee shall ensure radon testing is performed in each room used for child care once every 5 years between the months of October and March and within 6 months after any remodeling, renovation, or construction.”⁷

Title 14, 934, § 27.2

Schools Surveyed every 4 years

“Schools are surveyed on a 4-year cycle for radon.”⁸

Healthy Public Buildings Assessment Act Report 2017 (PDF)

Child care Testing required in some counties

Schools Testing required

“All public and private school buildings or school sites housing students in kindergarten through grade 12; all state-owned, state-operated, state-regulated, or state-licensed 24-hour care facilities; and all state-licensed day care centers for children or minors which are located in counties designated within the Department of Business and Professional Regulation’s Florida Radon Protection Map Categories as “Intermediate” or “Elevated Radon Potential” shall be measured to determine the level of indoor radon, using measurement procedures established by the department.”⁹

Fla. Stat. § 404.056(4)

Renters Radon notice required

“Notification shall be provided on at least one document, form, or application executed at the time of, or prior to, contract for sale and purchase of any building or execution of a rental agreement for any building.”⁹

Fla. Stat. § 404.056(5)

Child care Testing at licensing (residential care)

“Upon initial licensing, provide documentation of testing for radon gas.”¹⁰

IDAPA 16.04.18.427 (PDF)

Child care Testing required every 3 years

“Licensed early care and education centers, licensed early care and education homes, and licensed group early care and education homes shall have the provider tested for radon at least once every 3 years pursuant to rules established by the Illinois Emergency Management Agency.”¹¹

225 ILCS 10/5.8 (compiled text as amended by P.A. 103-594 and P.A. 104-480)

Schools Testing recommended every 5 years

“It is recommended that every occupied school building of a school district be tested every 5 years for radon pursuant to rules established by the Illinois Emergency Management Agency (IEMA).”¹²

105 ILCS 5/10-20.48

Renters Disclosure required

“At the time of a prospective tenant's application to lease a dwelling unit, before a lease is entered into, or at any time during the leasing period, upon request, the lessor shall provide the prospective tenant or tenant of a dwelling unit with:”¹³

420 ILCS 46/26

Renters Tenant may end the lease

“If the tenant's radon test provides a result in excess of the Illinois Emergency Management Agency's recommended Radon Action Level and the lessor has elected to not mitigated the radon hazard, the tenant may terminate the lease.”¹³

420 ILCS 46/26(b)

Schools Recommended, not required

“Radon testing in schools is highly recommended by the Indiana Department of Health, but not required by Indiana law.”¹⁴

Radon in Schools (PDF)

Child care Testing required (ground level or basement)

“Within one year of being issued an initial or renewal license, centers operating in facilities that are at ground level, use a basement area as program space, or have a basement beneath the program area shall have radon testing following the National Consensus Standards as outlined in 641-Chapter 43”¹⁵

Iowa Admin. Code r. 441-109.11(8)(b) (ARC 9021C, effective July 1, 2025)

Schools Testing required every 5 years

“Each attendance center in a school district must be tested for radon at least once by July 1, 2027, and at least once every 5 years thereafter.”¹⁶

Iowa Code § 280.32

Renters Occupants may request board records

“Records obtained by the board are exempt from the disclosure requirements of KRS 61.870 to 61.884, except that the board shall make the records available upon request: (a) To the owner or occupant of a building”¹⁷

KRS 309.452 (PDF)

Schools Funded when funds are available

“When funds are available, the department shall disburse money to school administrative units to use for radon testing.”¹⁸

20-A M.R.S. §4013

Renters Landlord testing required

“By March 1, 2014, and, unless a mitigation system has been installed in that residential building, every 10 years thereafter when requested by a tenant, a landlord or other person who on behalf of a landlord enters into a lease or tenancy at will agreement for a residential building shall have the air of the residential building tested for the presence of radon.”¹⁹

14 M.R.S. §6030-D

Renters Lease may end at 4.0 pCi/L or above

“If a test of a residential building under this section reveals a level of radon of 4.0 picocuries per liter of air or above, then either the landlord or the tenant may terminate the lease or tenancy at will with a minimum of 30 days' notice.”¹⁹

14 M.R.S. §6030-D

Child care Testing required (child care homes)

“(4) A licensee shall test the child care home for the concentration of radon gas before the initial license is issued and every 4 years at the time of license renewal.”²⁰

Mich. Admin. Code r 400.1915

Schools Recommended (EPA)

“the U.S. Environmental Protection Agency (USEPA) recommends that radon testing be conducted at all school buildings and that action be taken to reduce elevated radon levels.”²¹

Michigan Indoor Radon Program

Schools Funded testing follows a state plan

“If a school district receives authority to use long-term facilities maintenance revenue to conduct radon testing, the district shall conduct the testing according to the radon testing plan developed by the commissioners of health and education.”²²

Minn. Stat. § 123B.571

Schools State tested some schools

“Our Radon In Schools Program tested about 17% of the state-supported schools (163 of 950 schools).”²³

Radon

Renters No legal duty to fix

“I tested my rental home (apartment) and the radon reading was high, is my landlord required to fix this problem? No, there is no legal requirement for him/her to mitigate the radon level.”²³

Mississippi State Department of Health, Radon, Questions and Answers

Child care and schools Free testing offered

“The Missouri Radon Program offers free radon testing services for Missouri public schools and commercial childcare centers.”²⁴

Radon

Schools Free testing for a few schools

“Did you know our radon program tests a small number of schools each year free of charge?”²⁵

Radon Test Kits

Child care Testing required; results posted

“All New Jersey licensed child care centers must test for the presence of radon and post the results in a prominent location.”²⁶

N.J.S.A. 30:5B-5.2 (PDF)

Child care Testing required in high-risk towns

“Radon is included as an environmental hazard that needs to be evaluated in towns considered high risk for elevated indoor radon based on the NYS Department of Health's radon database. Radon testing must be performed, and any identified problems must be resolved before registration/licensing is completed.”²⁷

18 NYCRR 413-418 (PDF)

Schools Test and mitigate as appropriate

“Districts shall take responsibility for being aware of the geological potential for high levels of radon and test and mitigate as appropriate.”²⁸

155.5

Schools State no longer tests schools

“Does the Ohio Department of Health (ODH) perform radon testing in schools? No, ODH no longer conducts radon testing in schools.”²⁹

Ohio Department of Health Radon Licensing Program, Frequently Asked Questions Concerning Radon Testing in Schools (PDF)

Schools Testing plan required (every 10 years)

“A school district shall develop a plan for testing schools for elevated levels of radon.” “Provide for the testing of radon in a school at least once every 10 years.”³⁰

ORS 332.345

Child care and schools Testing required

“All public and high priority buildings, as defined in § 2.3.1 of this Part, must be tested for radon or radon progeny by a certified radon inspector according to the procedures, schedules and protocols contained in this section.”³¹ “"High priority building" means any public building or public, private, and/or parochial school (Grades pre-K to 12), and/or child care facility.”³²

216-RICR-50-15-2 (PDF)

Renters Disclosure form on lease with option to buy

“This article applies to the following transfers of residential real property consisting of at least one but not more than four dwelling units: (1) sale or exchange; (2) installment land sales contract; or (3) lease with an option to purchase contract.” “presence of lead-based paint, asbestos, radon gas, methane gas, underground storage tank, hazardous material or toxic material, buried or covered, and other environmental contamination;”³³

S.C. Code §§ 27-50-20 and 27-50-40

Schools Testing encouraged

“Each LEA is encouraged to conduct an inspection and evaluation program, such as the environmental protection agency's indoor air quality tools for schools program, for its facilities. Such program may include, but shall not be limited to, the following measures: (1) Ensuring that an adequate amount of outdoor air is being supplied; (2) Testing for radon;”³⁴

T.C.A. § 49-2-121 (PDF)

Schools Listed as a program service

“Utah's radon program provides the following services:” “Public-school testing”³⁵

Home Radon Test

Schools Testing required

“each public school and approved independent school, as defined in 16 V.S.A. § 11, shall perform a radon measurement in accordance with the ANSI/AARST protocol for conducting Radon and Radon Decay Products in Schools and Large Buildings”³⁶

Act 166 of 2022, amending 2021 Acts and Resolves No. 72, Sec. 12 (PDF)

Schools Testing required

“By July 1, 1994, every school building in operation in the Commonwealth shall be tested for radon pursuant to procedures established by the U.S. Environmental Protection Agency (EPA) for radon measurements in schools.”³⁷

§ 22.1-138

Schools Testing required (new schools)

“Upon notice from the School Building Authority that a new public school building is occupied, the division of health shall perform radon testing in the school within the first year after occupancy and at least every five years thereafter.”³⁸

§18-9E-3

Child care Testing required

“Each licensee shall test or have a test conducted for radon gas levels in the lowest level of the center that is used by children in care for at least 7 hours per week.”³⁹

Wis. Admin. Code DCF 250.06(2)(n); DCF 251.06(2)(p)

Schools Testing recommended

“It is recommended that all schools be tested for radon and retested after any renovations or changes to the building's HVAC system.”⁴⁰

Radon in Schools