Cal. Health and Safety Code - HSC § 106750. Section 106750.
This article establishes requirements for radon certification.
[ARTICLE 2. Radon Certification] [106750. - 106795.]
Cal. Health and Safety Code - HSC 2.
in effectCal. Health and Safety Code - HSC § 106770. Section 106770.
“Department” means the State Department of Health Services.
Cal. Health and Safety Code - HSC § 106775. Section 106775.
“Radon services” means any of the following:
(a)
The analysis of radon detectors or testing for radon or radon decay products by a commercial laboratory.
(b)
The performance of radon or radon progeny measurements in buildings by an individual person who provides professional or expert advice on radon and radon progeny measurements, radon entry routes, and
other radon related activities.
(c)
The repair or alteration by an individual person of a building or design for the purpose, in whole or in part, of reducing the concentration of radon in the indoor atmosphere.
Cal. Health and Safety Code - HSC § 106780. Section 106780.
(a)
Except as provided in Section 106790, no person may provide radon services for the general public, or represent or advertise that he or she may provide radon services unless that person meets both of the following requirements:
(1)
Successfully completes the National Radon Measurement Proficiency Program of the National Environmental Health Association or the National Radon Safety Board
Certified Radon Professional Program.
(2)
Submits to the department a copy of certificate demonstrating successful completion of either program.
(b)
Persons certified to provide radon services shall successfully complete and submit to the department proof of completion of the National Radon Measurement Proficiency Program of the National Environmental Health Association or the National Radon Safety Board Certified Radon Professional Program every two years after initial certification.
(c)
A copy of the current certificate of completion shall be submitted to the department at least 14 days prior to conducting radon services within the state.
Cal. Health and Safety Code - HSC § 106785. Section 106785.
The department shall maintain a list of persons that have submitted proof of certification by either the National Environmental Health Association or the National Radon Safety Board Certified Radon Professional Program. This list shall be made available to the public.
Cal. Health and Safety Code - HSC § 106790. Section 106790.
This article does not apply to a person in any of the following circumstances:
(a)
The person is testing for, or mitigating radon in a building that the person owns or occupies.
(b)
The person is designing or conducting mitigation measures to prevent against radon infiltration or accumulation in new construction.
(c)
The person is performing scientific research regarding testing or mitigation of radon, but only if the person informs the owner and the occupant of the building of all of the following:
(1)
That the person is not certified by the National Radon Measurement Proficiency Program of the National Environmental Health Association or the National Radon Safety Board Certified Radon Professional Program.
(2)
Any test results are neither certified nor valid for legal purposes.
(3)
Any mitigation methods suggested or used are experimental.
Cal. Health and Safety Code - HSC § 106795. Section 106795.
It is unlawful for an individual to provide radon services in violation of this article. A violation of this article is a misdemeanor punishable by a fine of not more than one thousand dollars ($1,000).
Source: CA Legislative Counsel Bulk DataURL: https://downloads.leginfo.legislature.ca.gov/pubinfo_2025.zipFetched: 6/27/2026