NESHAP for Miscellaneous Organic Chemical Manufacturing (40 CFR part 63, subpart FFFF) (Final Rule)

As part of the residual risk and technology reviews for the NESHAP, the Environmental Protection Agency (EPA) is revising requirements for equipment leaks and heat exchange systems, and also adding requirements to specifically address ethylene oxide emissions from storage tanks, process vents, and equipment leaks. The EPA is also finalizing amendments to correct and clarify regulatory provisions related to emissions during periods of startup, shutdown, and malfunction (SSM); add requirements for electronic reporting of performance test results and reports, performance evaluation reports, and compliance reports; add operational requirements for flares used to control emissions from miscellaneous organic chemical manufacturing process units that produce olefins or polyolefins and for flares controlling ethylene oxide emissions, including operational and monitoring requirements to allow the use of pressure-assisted multi-point flares; add work practice standards and monitoring requirements for pressure relief device (PRD) releases; add requirements for storage tank degassing; and add requirements and clarifications for vent control bypasses, including bypass lines, in situ sampling systems, maintenance activities, and certain gaseous streams routed to a fuel gas system. This information collection request documents the recordkeeping and reporting requirements and burden imposed only by these amendments. In general, all NESHAP standards require initial notifications, performance tests, and periodic reports by the owners/operators of the affected facilities. These notifications, reports, and records are essential in determining compliance and are required of all affected facilities subject to NESHAP. This information collection request (ICR) includes the burden for all activities that will be conducted in the first three years following promulgation of the amendments to the MON. These activities include reading the rule, installing and maintaining monitors, and completing the recordkeeping and reporting requirements.

The latest form for NESHAP for Miscellaneous Organic Chemical Manufacturing (40 CFR part 63, subpart FFFF) (Final Rule) expires 2027-07-31 and can be found here.