Flare regulatory update

The United States Environmental Protection Agency (USEPA) revised the regulations for the refinery through the Refinery Sector Rule (RSR) revisions to NESHAP CC and UUU (aka MACT CC and MACT UUU). The USEPA is expected to propose revisions to the Ethylene MACT and the Hazardous Organic NESHAP (HON) and the Miscellaneous Organics NESHAP (MON). These proposed changes have not been published as of July 2019 and the USEPA is expected to miss the March 2020 deadline to finalize the revisions to those rules. Based on conversations with the USEPA, the revisions to the regulations are expected to be very similar to the MACT CC requirements.