Accidental Release Prevention Requirements; Interpretations

The Environmental Protection Agency is announcing clarifying interpretations of the accident prevention regulations authorized by section 112(r) of the Clean Air Act (CAA). First, the Agency is clarifying the method for calculating whether a quantity of a regulated substance in a listed solution exceeds its regulatory threshold under these rules. Second, the Agency is clarifying that certain reports and studies required by the accident prevention rules do not need to be reported under section 8(e) of the Toxic Substances Control Act (TSCA) or under the rules implementing TSCA section 8(d). The interpretations announced today clarify the Agency's existing policy and should help regulated entities understand their compliance obligations under these regulations.