Laws & Regulations

EPA Approved Regulations in the Maryland SIP

Rapanos v. United States & Carabell v. United States

Documents associated with guidance for implementing the definition of "waters of the United States" under the Clean Water Act following the Rapanos v. United States, and Carabell v. United States Supreme Court decision.

The Navigable Waters Protection Rule - Supporting Documents

Economic Analysis and Resource Programmatic Assessment document links in support of the 2020 revised definition of "waters of the United States"

Notice of Public Meetings Regarding “Waters of the United States”

Link to the pre-publication version of the Federal Register notice announcing public meetings on the intention to revise the definition of "waters of the United States."

EPA Grants Webinars Archive

Archived webinars hosted by EPA's Office of Grants and Debarment.

Heavy-Duty Highway Diesel (Compression Ignition) Engines (>8,500 Pounds GVWR): Family Naming Conventions

How to create Positions 5-12 of your Engine Family name for Heavy-Duty Highway Diesel (compression ignition) Engines (>8,500 pounds GVWR).

Heavy-Duty Highway Gasoline (Otto-cycle/Spark Ignition) Engines (>8500 Pounds GVWR): Family Naming Conventions

How to create Positions 5-12 of your Engine Family name for Heavy-Duty Highway Gasoline (otto-cycle/spark ignition) Engines (>8500 pounds GVWR).

History of Fuel Economy Labeling

Fuel economy labeling, history and trends of fuel economy, testing and data, and information on how federal agencies work together on the issue of fuel economy.

Manufacturer Contact List for Clean Diesel

This list provides contact information for manufacturers and organizations of technologies that are on EPA's Verified Technologies List for Clean Diesel.

Proposed Renewable Fuel Standards for 2023, 2024, and 2025

EPA proposes an alternative schedule for small refineries to demonstrate compliance with their 2020 RFS obligations.

Learn What Information You’ll Find in this Website and Who To Contact

See the changes made to the new website for renewable fuel standard programs including regulations, developed by EPA, in collaboration with refiners, renewable fuel producers, and many other stakeholders.

Improvements for Heavy-Duty Engine and Vehicle Test Procedures, and other Amendments – Proposed Rule

EPA propose to Improvements for Heavy-Duty Engine and Vehicle Test Procedures, and other Technical Amendments.

Petitions for Reconsideration of SAFE-1 Submitted to EPA

Petitions for Reconsideration of SAFE 1 Submitted to EPA

Designation of the U.S. Caribbean Emission Control Area for Marine Vessels

Materials related to MARPOL Annex VI Designation of the U.S. Caribbean Emission Control Area for Marine Vessels

Revised Federal Transit Authority Procedures for a Conformity Lapse

This document contains information regarding two revisions that must be made to certain provisions in the EPA's transportation conformity regulations due to a court ruling.

Transmittal of "EPA Guidance on the Transfer of Federal Property by Deed Before All Necessary Remedial Action Has Been Taken Pursuant to CERCLA Section 120(h)(3)"

This guidance is for the EPA Regions to use when reviewing requests from federal departments and agencies that are transferring property to defer the CERCLA Section 120(h)(3) covenant that all necessary remedial actions have been taken.

EPA Policy Towards Privately-Owned Formerly Used Defense Sites

EPA is issuing this policy to the Regions in order to clarify the Agency's role at privately-owned formerly used defense sites.

Overview of Early Transfer Guidance

To implement Congressionally mandated action, the U.S. Environmental Protection Agency (EPA) has issued guidance on the transfer of federal property contaminated with hazardous wastes, before cleanup completion. This eplains the early transfer process

Past Funding Opportunities

UIC Permit: PAS2D010BVEN

Stonehaven Energy underground injection control permit