Evidence Intelligence

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Policy intelligence brief

2026-03638 — National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units: Final Repeal

The U.S. Environmental Protection Agency (EPA) is finalizing the repeal of specific amendments to the National Emission Standards for Hazardous Air Pollutants (NESHAP) for Coal- and Oil-Fired Electric Utility Steam Generating Units (EGUs), commonly referred to as the Mercury and Air Toxics Standards (MATS), that were promulgated on May 7, 2024. Specifically, the EPA is repealing the revised filterable particulate matter (fPM) emission standard, which serves as a surrogate for non-mercury hazardous air pollutant (H…

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Legal stateEnacted or issuedVerify the effective date, covered entities, and operative text.
JurisdictionUnited StatesFederal-source record
Latest recorded action2026-02-24Final rule.
Primary sourceFed. RegisterOriginal public record linked

What the evidence says

Key findings

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How it operates

Disclosure & reporting · Emissions standard

Forces a data center’s energy, water, and impact data into public view, so regulators, ratepayers, and communities can see figures operators would otherwise keep private. Caps or standardizes the greenhouse-gas and pollution footprint a data center is allowed to produce.

Comparable precedents

Related approaches worth comparing

Selected by shared tracked mechanisms or themes, with cross jurisdiction examples prioritized. Similarity is not legal equivalence.

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Relationship map

2026-03638 evidence graph

National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units: Final Repeal

11 nodes · 10 evidenced edges
Policy record 1Policy theme 4Policy mechanism 2Documented actor 1Policy family 1Jurisdiction 1Original source 1
explicitly concerns: Theme named in the title or stored summaryexplicitly concerns: Theme named in the title or stored summaryexplicitly concerns: Theme named in the title or stored summaryclassified under: Fixed-vocabulary topic classificationsignals mechanism: Mechanism signal derived from the tracked record textsignals mechanism: Mechanism signal derived from the tracked record textapplies in: Jurisdiction recorded for this source typedocumented by: Original source URL stored with the policy recordissued by: Issuing agency named in the tracked public recordmember of family: standalonePolicy record2026-03638National Emission Standards…2026-03638: National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units: Final RepealPolicy themeEnergyExplicit record textEnergy: Explicit record textPolicy themeCarbonExplicit record textCarbon: Explicit record textPolicy themeCertification & Standa…Explicit record textCertification & Standards: Explicit record textPolicy themeGrid ReliabilityAI-assisted policy themeGrid Reliability: AI-assisted policy themePolicy mechanismDisclosure & reportingText-derived policy signalDisclosure & reporting: Text-derived policy signalPolicy mechanismEmissions standardText-derived policy signalEmissions standard: Text-derived policy signalJurisdictionUnited StatesFederal policy jurisdictionUnited States: Federal policy jurisdictionOriginal sourceFed. RegisterOriginal public sourceFed. Register: Original public sourceDocumented actorEnvironmental Protecti…agencyEnvironmental Protection Agency: agencyPolicy familyNational Emission Stan…USNational Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units: Final Repeal: US

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Inspectable edges

Relationship receipts

Each edge states what was observed and why it appears. An edge never implies private influence, support, opposition, or causation.