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Lawmakers weigh 6PPD phase-out and mitigation fee as scientists warn of salmon kills and industry flags safety concerns
Summary
HB 24-21 would ban 6PPD in motor-vehicle tires by 2035 and impose a mitigation fee starting in 2027 to fund monitoring and cleanup; scientists and advocacy groups urged faster action to protect salmon, while tire manufacturers and retailers warned of safety, testing and cost issues.
Committee staff told the panel that House Bill 24-21 would prohibit 6PPD and certain regrettable substitutes in motor-vehicle tires by 2035, require Ecology to identify unsafe substitutes, and establish a mitigation fee on tires beginning in 2027 (tiered fees: $3 for lighter tires, $6 for heavier tires, increasing 10% annually) to fund monitoring, stormwater sampling and waste-tire cleanup.
Environmental scientists and local utilities described evidence linking 6PPD-quinone (6PPDQ) to mass coho salmon mortality. Alexei…
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