NESHAP for Polyether Polyols Production (40 CFR part 63, subpart PPP) (Renewal)

The EPA is finalizing revisions for the National Emission Standards for Hazardous Air Pollutants (NESHAP) for Polyether Polyols. Potential respondents subject to the new requirements of the NESHAP include an estimated 23 existing facilities that produce polyether polyols. The EPA is finalizing amendments which require that that there be no discharge to the atmosphere from any pressure relief device (PRD) on any equipment in HAP service within the process units for the Polyether Polyols source category. To ensure compliance with this requirement, facility owners or operators are required to monitor each PRD with equipment that would be able to identify and record the time and duration of each pressure release and notify operators that a pressure release has occurred. The final amendments also add provisions for facility owners or operators to use if they wish to assert an affirmative defense to avoid civil penalties for exceedances of the applicable standards that are caused by a malfunction. If these provisions are used, the owner or operator is required to meet certain criteria during the malfunction, notify the Administrator of malfunctions that may cause an exceedance of the emissions standards, and submit a report of the malfunction to the Administrator, to include a root cause analysis of the malfunction, within certain timeframes.

The latest form for NESHAP for Polyether Polyols Production (40 CFR part 63, subpart PPP) (Renewal) expires 2021-01-31 and can be found here.