Tire makers say lawsuit over fish-killing chemical sidesteps EPA

Michelin and 12 other tire manufacturers have asked a U.S. court to dismiss a lawsuit filed by California-based commercial fishing groups that allege a chemical used in their tires is poisoning West Coast watersheds and killing rare trout and salmon.

The tire manufactures, which also include Bridgestone and Goodyear Tire & Rubber, told a federal court in San Francisco on Friday that the lawsuit attempts to “step around” the U.S. Environmental Protection Agency, which is the country’s primary regulator of chemicals and is already considering rules targeting 6PPD, a rubber stabilizer.

The Institute for Fisheries Resources and the Pacific Coast Federation of Fishermen's Associations had said in their November lawsuit that the chemical, which becomes toxic when it degrades, is released from tires as vehicles drive around and park. The degraded chemical can be flushed into waterways during storms, where it kills protected salmon and trout.

The groups said that violates a provision of the Endangered Species Act (ESA) that prohibits parties from incidentally harming or killing protected animals or plants without first obtaining federal approvals.

But in Friday's filing, the tire manufacturers said those prohibitions do not apply to chemicals additives in consumer products that pose a threat "years later, in distant locations and following extensive use and degradation of those products."

Elizabeth Forsyth, an attorney for the plaintiffs, said in a statement Monday that the chemical's alleged harms to protected fish are exactly the kind of thing the ESA is intended to stop. There is "no legal reason" why the law wouldn't apply in the case, she said.