Defines department, international program approval standard, ISO/IEC, radon professional, radon proficiency program approval rules, and recognized accreditation body.

Requires the Department of Health and Human Services, through its Division of Health Service Regulation (Department) to adopt temporary and permanent radon proficiency program approval rules that provide for all of the following:

• Approval of a radon proficiency program that meets either of the following criteria: (1) compliance and periodic reaccreditation with the international program approval standard through accreditation by a recognized accreditation body or (2) satisfying the following requirements: (i) establishment of a board with members from various private and public sector stakeholders to make decisions regarding curriculum, testing, instructor qualifications, quality assurance and control, continuing education requirements, and procedures for the handling of complaints, (ii) minimum training requirements for radon professional certification, (iii) examination and continuing education requirements, (iv) submission of instructor qualifications demonstrating relevant knowledge and experience, and (v) submission to regular audits regarding property handling of risk, impartiality, and candidate records.
• Approval of a term that is no less than one year for radon proficiency programs that meet the criteria set forth above.
• In cases where an application for approval or renewal of approval for radon proficiency program is denied, that a proficiency program shall have 180 days to engage in corrective actions and reapply for renewal before any approval is revoked or, for a new radon proficiency program, before the applicant will have to resubmit a new application.
• Publication of a registry of approved proficiency programs in all communications by the Department regarding proficiency programs.

Specifies that the rules adopted by the Department are not subject to review by the Rules Review Commission under the APA. Specifies rules related to effective date. Provides that radon proficiency programs currently operating and were included in public listings of programs by the Department at any time after January 1, 2020, are deemed to be an approved radon proficiency program under the act until permanent rules are adopted and the program has been approved or denied approval under those rules.