On August 17, the U.S. Court of Appeals for the District of Columbia Circuit, in the case Air Alliance Houston, et al., v. EPA, vacated the Environmental Protection Agency’s (EPA) “Delay Rule.” The so-called “RMP” ( for risk management plan) rule was substantially amended after a number of plant explosions took place in the past few years. The amended rules were published a week before the new administration took office EPA had delayed the effective date of the Chemical Disaster Rule of 2017 on three separate occasions: January 26, 2017, March 16, 2017, and ultimately to June 14, 2017.
The Court of Appeals held that the actions taken by EPA were not authorized under the relevant provisions of the Clean Air Act (CAA) and were otherwise arbitrary and capricious. The Court of Appeals vacated the Delay Rule of June 14, 2017.