This bill creates a new chapter in Title 70A RCW that, beginning January 1, 2035, prohibits manufacturing, selling, offering for sale, distributing for sale, or distributing for use in Washington state any new vehicle tire that contains intentionally added 6PPD or any “regrettable 6PPD substitute” identified by rule. It grants the Department of Ecology rulemaking authority to identify regrettable substitutes (with the Department of Health consulted), allows Ecology to adopt implementing and enforcement rules after July 1, 2029, and exempts tires for certain federal aviation, defense, homeland security, and NASA uses. The bill references existing statutory definitions for “6PPD,” “safer alternative,” and “vehicle” by cross-reference to other RCWs. The bill establishes civil enforcement and procedural mechanisms rather than criminal penalties: corrective action orders, civil penalties up to $5,000 per violation for a first offense and up to $10,000 per violation for repeat offenses, and appeal rights to the Pollution Control Hearings Board. It amends and reenacts RCW 43.21B.110 and 43.21B.300 to add this act’s section 4 to the list of statutes subject to hearings board jurisdiction and penalty procedures. Penalty collection procedures and timing are set out (including 30‑day deadlines to seek remission or mitigation and to appeal), recovery actions by the attorney general or authorities, and deposit of collected penalties into the model toxics control operating account. The excerpts provided are incomplete: the full text of sections 2–4 is not shown, the detailed definitions referenced by cross-reference are not included here, the latter part of RCW 43.21B.300 is cut off, and the identities of the unspecified “authority” and “department” in some procedural provisions are not explicit in the extracted material.

Tire makers, importers, distributors and retailers that sell new vehicle tires into Washington will likely need to stop offering any tires that intentionally contain 6PPD or any substitutes the Department of Ecology later labels as "regrettable" by January 1, 2035, or face civil penalties (up to $5,000 per violation for a first offense and up to $10,000 for repeat offenses) and possible corrective orders. The Department of Ecology will be responsible for deciding which substitutes are banned and for enforcement, with the Department of Health advising; federal aviation, defense, homeland security, and NASA tires are exempt. Penalties collected are directed to the model toxics control operating account, and appeals go to the Pollution Control Hearings Board. Because the department cannot begin rulemaking under this new chapter before July 1, 2029, producers and sellers will have several years of uncertainty while rules are developed and substituted chemicals are evaluated. Anyone who receives a penalty has 30 days to seek mitigation or appeal, but mitigation is limited to extraordinary circumstances, and unpaid penalties can be collected through court. The text omits the detailed definitions of 6PPD and "safer alternative" and other sections are incomplete here, so the precise scope of banned chemicals and some implementation details remain unclear.