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AB 455 would require disclosure about "third-hand" tobacco and vaping residues for homebuyers; author accepts committee amendment making update funds dependent

5120221 · July 2, 2025
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Summary

AB 455 (Ortega) would require updates to a guidance handbook and disclosures to inform prospective homebuyers about third-hand smoke and vaping residues in indoor environments; the author accepted committee language making the handbook update subject to availability of funds and emphasized public-health research on persistent indoor residues.

Assemblymember Ortega presented AB 455, a bill to add information about "third-hand smoke" and aerosol residues to homebuyer guidance and disclosures. Ortega said third-hand smoke consists of particles and gases that remain in indoor surfaces, HVAC systems, walls, flooring and furnishings long after smoking or vaping stops, and that exposure has been linked in studies to DNA damage, asthma exacerbation and other health risks.

Ortega accepted committee amendments making the handbook update subject to the availability of funds. He brought a technical witness, Dr. George Matt (Center for Tobacco and Environmental Health at San Diego State University), to answer scientific questions.

No in-room opposition was recorded in the transcript. Committee members expressed appreciation for highlighting the concept of third-hand smoke and noted the utility of disclosure and homeowner awareness. The committee advanced the bill as amended; the author closed by asking for an "aye" vote.

Ending: Committee advanced AB 455 with the amendment that handbook updates be contingent on available funding; staff and the author will rely on technical input from SDSU for implementation details.