other large release event

A regulatory reporting emissions source category within EPA’s Subpart-W: Abnormal methane emissions exceeding 100 kg/h, not fully accounted for using existing methods in Subpart-W. This source category, quantified based on measurement data, was added in the 2024 revisions to Subpart-W. This source aligns with the threshold for events under the Super Emitter Program in NSPS OOOOb and EG OOOOc.