National Emission Standards for Hazardous Air Pollutants for Source Categories: Organic Hazardous Air Pollutants From the Synthetic Organic Chemical Manufacturing Industry and Other Processes Subject to the Negotiated Regulation for Equipment Leaks; Clarifications

On April 10, 1995, the EPA proposed amendments to certain portions of the ``National Emission Standards for Hazardous Air Pollutants from the Synthetic Organic Chemical Manufacturing Industry and Other Processes Subject to the Negotiated Regulation for Equipment Leaks'' (collectively known as the ``hazardous organic NESHAP'' or the ``HON''). This action announces the EPA's final decisions on those proposed amendments. The rule is being revised to remove three compounds (glycerol tri- (polyoxypropylene)ether, polyethylene glycol, and polypropylene glycol) from the list of chemical production processes regulated by the HON. The production of these compounds is also included in the source category ``Polyether Polyols Production'' and will be regulated by that national emission standards for hazardous air pollutants (NESHAP). The equipment leak requirements in the rule are also being revised to clarify the intent of certain provisions, to correct oversights, and to simplify demonstration of compliance with the regulation. These changes are being made to ensure that the rule is implemented as intended.