If asbestos-containing materials are used in an air duct system which is installed in any building in the state on or after the effective date of this chapter, such material shall be overcoated with a sealant adequate to preclude erosion of asbestos fibers.
Chapter 17Air Duct Systems
Section § 25999
This law requires that any asbestos-containing materials used in air duct systems in buildings must be covered with a sealant to prevent asbestos fibers from spreading. This applies to systems installed after the law's effective date.
asbestos-containing materials air duct system sealant erosion prevention asbestos fibers building installation effective date asbestos safety indoor air quality fiber containment building regulations asbestos management construction requirements health and safety asbestos overcoating