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.
UIC Wells: What the Six Classes Mean and Where to Find Them
What a UIC well is, how EPA's six injection well classes differ, why Class II dominates the count, and how to find UIC well records by state.
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EPA OOOOa is in effect and the IRA methane charge is rescinded.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.
GHGRP Subpart W Reporting in 2026: What Is Still Required
GHGRP Subpart W reporting remains mandatory in 2026. The RY2025 deadline moved to October 30, 2026. Here is what changed, what did not, and what to file.
GHGRP Subpart W Deadline Moved to October 2026
EPA moved the RY2025 GHGRP filing deadline to October 30, 2026, while a separate proposal to suspend Subpart W reporting through 2034 remains pending.