California Labor Code § 142.3
Authorizes the state to adopt occupational safety and health standards that are at least as effective as federal standards. Regulations promulgated under the law (8 Cal. Code Regs. 5142, 5143) apply to both private and public workplaces, such as schools. The regulations require HVAC systems to be operated continuously and inspected annually, and HVAC inspection and maintenance records to be made in writing and provided to the state and to employees upon request. Regulations also require (8 Cal. Code Regs. 5141.1) that employers take specified actions (including feasible engineering controls such as air filtration) in certain situations when employees may be exposed to wildfire smoke. Additional regulations governing general sanitation (8 Cal. Code Regs. 3362) provide that when exterior water intrusion, leakage from interior water sources, or other uncontrolled accumulation of water occurs, those conditions must be corrected because of their potential to cause the growth of mold.
California Health & Safety Code § 39660.5
Requires the Air Resources Board, when evaluating the level of potential human exposure to toxic air contaminants, to assess exposure in indoor environments as well as in ambient air conditions. Requires the Board to coordinate with other state agencies.
California Health & Safety Code §§ 26200--26204
Required the California Research Bureau, in consultation with the Department of Public Health and with the assistance of a review panel, to perform a study and to publish findings on fungal contamination affecting indoor environments. Required the study to include information on health effects, assessment, remediation, and hazard communication, among other issues. Required the California Research Bureau to submit its findings to the legislature and the Director of Public Health.
California Health & Safety Code §§ 26100--26157
Requires the state health agency to consider the feasibility of adopting permissible exposure limits to mold in indoor environments and, if feasible, to adopt such limits. Establishes criteria to consider in adopting standards, and provides that the department may also adopt alternative standards for facilities that serve people at greater risk. Provides that the law shall be implemented only to the extent that the department determines that funds are available for its implementation. Authorizes local enforcement of any standards adopted by the department.
California Health & Safety Code § 105425
Requires the state health agency to conduct and promote the coordination of research, investigations, experiments, demonstrations, surveys, and studies relating to the causes, effects, extent, prevention, and control of indoor pollution.
California Health & Safety Code § 105430
Provides that the state health agency may develop radon assessment and mitigation requirements for new construction in at-risk areas.
California Business & Professions Code §§ 10084.1--.2
Requires the state to prepare a booklet to educate consumers about common environmental hazards affecting real property, including radon. Law amended in 2023 to require updating the materials, as resources permit, to include new sections on wildfires, climate change, and sea level rise.
California Health & Safety Code §§ 106750 et seq.
Establishes that no person may provide radon services for the general public unless that person has completed the National Radon Measurement Proficiency Program of the National Environmental Health Association or the National Radon Safety Board Certified Radon Professional Program. Requires certification of completion of either course to the state health agency, and requires the agency to make available to the public a list of individuals so certified.
California Civil Code §§ 1102--1102.18
Requires sellers of real property containing up to four residential units to complete a disclosure form indicating the presence of all environmental hazards, including radon gas, formaldehyde, and mold, that are known to the seller. Also requires disclosure of whether property contains a carbon monoxide device. Requires resale of manufactured homes and mobile homes to include disclosure of environmental hazards in the home interior or exterior, including radon, formaldehyde, and lead-based paint, as well as the existence of a carbon monoxide device.
Cal. Pub. Res. Code § 21150, 21151.8
Requires all state entities responsible for allocating state or federal funds to local agencies for any project which may have a significant effect on the environment to require a detailed environmental impact analysis. Prohibits certification or approval of such analysis for a project involving the purchase of a schoolsite or the construction of a new elementary or secondary school unless certain conditions are met, and requires a special analysis for schoolsites with boundaries within 500 feet of a freeway or other busy traffic corridor. Following the special analysis, requires a determination by the school board that based on appropriate air dispersion modeling and after considering potential mitigation measures, "the air quality at the proposed site is such that neither short-term nor long-term exposure poses significant health risk to pupils."
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