EPA OOOOb Explained: Who It Covers and What It Requires
OOOOb is the EPA methane standard for oil and gas sites built after December 6, 2022. Check which subpart covers yours, with thresholds and current deadlines.
EPA's April 2026 OOOOb/OOOOc Amendment: What Changed
EPA revised OOOOb/OOOOc temporary flaring and NHV monitoring, effective June 8, 2026. Most flares and combustion devices are now exempt from NHV monitoring.
EPA OOOOb/c Status Is Uncertain: How Operators Should Plan
EPA OOOOa is in effect and the IRA methane charge is rescinded. OOOOb/c faces repeal. Here is the current status of each rule and how operators should plan.