Laws & Regulations
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Final NPDES Permit for EcoElectrica in Puerto Rico
EPA's NPDES wastewater permit for the EcoElectrica LNG Terminal and Cogeneration Project in Puerto Rico.
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The Manager's Role in Assuring Quality Data
This is a transcript from a training video about the Uniform Federal Policy for Quality Assurance Project Plans.
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CSAPR Compliance Year 2021 NUSA NODAs
This page contains links to NUSA Notices of Data Availability for the CSAPR 2020 compliance year.
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Proposed State Budgets under the CSAPR for the 2015 Ozone NAAQS
Proposed State Budgets under the CSAPR for the 2015 Ozone NAAQS
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Court of Appeals: EME Homer City Generation, L.P. v. Environmental Protection Agency, et al.
On January 24, 2013, the United States Court of Appeals for the D.C. Circuit denied EPA's petition for rehearing en banc of the Court's August 2012 decision to vacate the Cross-State Air Pollution Rule.
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Dotson, Carlos v. United States
The U.S. Supreme Court granted the United States' petition asking the Court to review the D.C. Circuit Court's decision on CSAPR.
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Environmental Protection Agency et al. v. EME Homer City Generation, L. P., et al.
On April 29, 2014, the U.S. Supreme Court reversed the D.C. Circuit opinion vacating CSAPR, holding that CSAPR "is a permissible, work- able, and equitable interpretation of the Good Neighbor Provision."
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Notice of Intent: Effect of Stay of Transport Rule
A December 30, 2011 order of the U.S. Court of Appeals for the District of Columbia Circuit stayed the Transport Rule, also known as the Cross-State Air Pollution Rule. This document sets out EPA’s interpretation of the effect of the Court’s stay on FIPs.
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Summary of Proposed NOₓ Emission Limits for Industrial Sources
Summary of Proposed NOₓ Emission Limits for Industrial Sources for the CSAPR for the 2015 Ozone NAAQS
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State Budgets under the Good Neighbor Plan for the 2015 Ozone NAAQS
State Budgets under the Good Neighbor Plan for the 2015 Ozone NAAQS
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State Budgets under the Revised Cross-State Air Pollution Rule Update
Revised Cross-State Air Pollution Rule Update State Budgets
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EPA Response to Judicial Stay Orders
In May 2023, the United States Courts of Appeals for the Fifth and Eighth Circuits issued orders staying, pending judicial review, EPA’s SIP disapproval action with respect to the SIPs submitted by Arkansas, Louisiana, Missouri, and Texas.
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Good Neighbor Plan Results
EPA is releasing NOx emission reductions from the first ozone season under the Good Neighbor Plan.
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Applicability Determinations
EPA's responses to written requests for applicability determinations under the Cross-State Air Pollution Rule
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Responses to 40 CFR Part 75 Petitions - 2005
Find responses to petitions submitted by affected units subject to 40 CFR Part 75 in 2005.
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Responses to 40 CFR Part 75 Petitions - 2004
Find responses to petitions submitted by affected units subject to 40 CFR Part 75 in 2004.
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Responses to 40 CFR Part 75 Petitions - 2003
Find responses to petitions submitted by affected units subject to 40 CFR Part 75 in 2003.
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Responses to 40 CFR Part 75 Petitions - 2001
Find responses to petitions submitted by affected units subject to 40 CFR Part 75 in 2001.
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Monitoring Plan for Part 75 Sources
Learn about monitoring plan data, which defines relationships between stacks, pipes and units, specifies location of monitors, and identifies equipment used.
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Electric Reliability MOU
Memorandum of Understanding on Interagency Communication and Consultation on Electric Reliability