Denka Performance Elastomer LLC et al v. United States Environmental Protection Agency et al

  1. March 20, 2023

    EPA Wants Challenge To Chloroprene Air Pollution Reg Axed

    The U.S. Environmental Protection Agency urged a Louisiana federal judge Monday to toss neoprene manufacturer Denka's complaint seeking to upend its chloroprene regulations, arguing that the court lacks jurisdiction because the challenged decisions are not final agency actions.

  2. January 11, 2023

    Rubber Maker Challenges EPA Chloroprene Air Pollution Regs

    The U.S. Environmental Protection Agency relied on data from tests on an overly sensitive lab mouse when assessing the chemical chloroprene's risk for humans and wrongly rejected attempts by Denka, which uses chloroprene to make Neoprene, to correct this error, the rubber manufacturer said in a complaint Wednesday.