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H 4590

An Act to improve indoor air quality for highly-impacted communities

194th Legislature (2025-2026) Introduced by James Arena-DeRosa and 47 co-sponsors

Establishes an IAQ Task Force to identify, monitor, and remediate indoor air quality in schools, care facilities, housing, prisons, and private buildings, with funding plans.

Bill reported favorably by committee and referred to the committee on House Ways and Means
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Bill Summary · H 4590

Summary of Massachusetts H 4590: An Act to improve indoor air quality for highly-impacted communities

Purpose and basic intent

  • Establish a dedicated task force to develop a statutory and regulatory framework to identify, monitor, and remediate indoor air pollution and indoor mold contamination in prioritized settings.
  • Focus on improving indoor air quality (IAQ) in schools, long-term care facilities, correctional facilities, early childhood education facilities, public housing, and privately-owned residential buildings.
  • Identify and recommend funding sources to support the implementation of IAQ improvements and remediation.

Key provisions

Section 1 — Creation of a IAQ Task Force

  • A task force is created to develop a comprehensive framework for IAQ identification, monitoring, and remediation in targeted facilities, plus recommendations for funding.
  • Composition (chair and members):
    • Commissioner of Public Health (or designee) – chair
    • Commissioner of Environmental Protection (or designee)
    • Secretary of Housing and Livable Communities (or designee)
    • Attorney General (or designee)
    • 11 members appointed by the Governor, including:
    • Representative of a community-based environmental justice organization
    • Academic expert on environmental health
    • Representative of the Massachusetts Association of Health Boards
    • Labor representative (recommended by the MA AFL-CIO)
    • Individuals with experience in community clinical health care, shelter housing systems, long-term senior care
    • Experts in identifying/monitoring IAQ and remediating IAQ and mold
    • Expert in environmental health monitoring in correctional facilities
    • Expert in public school administration
  • Timeline:
    • First meeting within 30 days of passage
    • Draft recommendations released at least 30 days before final report
    • Final report with recommendations due within one year of passage
  • Deliverables: Final report to clerks of the House and Senate, chairs and ranking members of Ways and Means, Joint Committee on Public Health, EOs for Health and Human Services and Energy and Environmental Affairs, Attorney General, and the State Environmental Justice Council; with identified funding sources for implementation.

Section 2 — Regulatory framework for IAQ assessments

  • The Department of Public Health (DPH), in consultation with the Department of Environmental Protection (DEP), must promulgate regulations for:
    • Conducting IAQ assessments
    • Monitoring exposure to ultrafine particulate matter and black carbon in indoor air
    • Standard procedures for air dispersion modeling, pollution management, and exposure estimation
    • Public reporting mechanisms related to IAQ assessments

Section 3 — Regulatory timetable

  • DPH must promulgate IAQ assessment regulations no later than July 31, 2027.

Affected facilities and broader scope

  • Buildings and facilities covered include:
    • Schools and early education facilities
    • Long-term care facilities
    • Correctional facilities
    • Public housing
    • Privately-owned residential buildings
  • Emphasis on indoor air pollutants with health implications, notably ultrafine particulate matter and black carbon.

Procedural and timeline highlights

  • Status: Reported favorably by the Public Health Committee; referred to House Ways and Means.
  • Filed: September 26, 2025; introduced October 9, 2025.
  • Next steps: If approved by Ways and Means, the bill would proceed through the usual legislative process toward potential enactment.

Potential impact (overview)

  • Establishes a formal, cross-agency framework to address IAQ and mold in high-impacted communities.
  • Creates a multidisciplinary stakeholder process to guide policy, regulation, and funding.
  • Could lead to mandated IAQ assessments, public reporting, and remediation activities in a broad set of building types.
  • Provides a pathway to identify funding sources to implement recommended improvements, though specific funding amounts are not defined in the bill.
  • Aims to reduce health risks associated with ultrafine particles and black carbon indoors, with attention to environmental justice considerations.

Compiled from official sources — confirm details with the bill’s official record.

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