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A Comprehensive Guide to 2025 Subpart W Updates

Subpart W Changes White Paper

The EPA has introduced significant updates to Subpart W for the 2025 reporting year (submitted in 2026), reshaping how emissions are reported and measured. These changes emphasize transparency, accuracy, and accountability in emissions data, impacting all segments of the oil and gas industry.

This guide breaks down the key updates, their implications, and what operators need to know.

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