The bill amends existing Washington state laws regarding asbestos-containing building materials, specifically RCW 70A.450.020, 70A.450.030, 70A.450.060, and 70A.450.070. Key changes include the definition of "asbestos-containing building material," which will change from containing more than one-tenth of one percent asbestos to more than 0.1 percent asbestos by weight or area starting January 1, 2025. Additionally, the bill introduces a new definition for "commercial aggregates," which refers to mixtures of mineral fragments used in construction that may contain low levels of asbestos. The labeling requirements for asbestos-containing materials are also updated, exempting those with an asbestos content of 0.25 percent or lower from certain regulations.

Furthermore, the bill prohibits the use of asbestos-containing building materials in new construction or renovations, with specific exemptions for residential construction, materials already ordered or in possession of contractors, and commercial aggregates. Owners of facilities engaged in certain industries are required to conduct inspections for asbestos-containing materials and maintain an asbestos management plan, which must be updated every five years. However, the requirements for inspections and management plans do not apply to commercial aggregates, reflecting a significant shift in regulatory focus.

Statutes affected:
Original Bill: 70A.450.030, 70A.450.060, 70A.450.070
Substitute Bill: 70A.450.030, 70A.450.060, 70A.450.070