Laws & Regulations

Light-duty Vehicle Greenhouse Gas Program Technical Amendments

EPA finalizes two technical corrections to the Light-duty Vehicle Greenhouse Gas (GHG) Emissions Standards Regulations.

Heavy-Duty Highway Powertrain Family Naming Conventions

This page provides the engine family naming convention for heavy-duty powertrain families.

Reporting Templates for Light-Duty Greenhouse Gas (GHG) Standards

Manufacturers must submit greenhouse gas certification and reporting data through EV-CIS, formerly Verify, EPA’s engine and vehicle compliance information system.

EPA’s Marine Remanufacturing Program: Maintaining Compliance when Rebuilding Category 1 and 2 Marine Diesel Engines

EPA maintains a list of remanufacture systems, or “kits”, certified for use with Category 1 and 2 marine diesel engines according to the provisions of 40 CFR Part 1042, Subpart I, and is periodically updated.

Heavy-Duty Highway Tractors and Vocational Vehicles: Family Naming Conventions

How to create Positions 5-12 of your Engine Family name for Complete Heavy-Duty Highway Vehicles (tractors and vocational vehicles >14,000 pounds GVWR).

Information about Family Naming Conventions for Vehicles and Engines

Family naming conventions overview, find applicable model year code, determine your manufacturer code, and find you industry sector.

EPA, MDEQ to Hold Community Meeting, Provide Update on Agency Response to TCE Contamination in Private Drinking Water Wells

Media Advisory, (EPA) and Mississippi Department of Environmental Quality (MDEQ) will hold a community meeting on Thursday, March 5.

• Release Date: March 3, 2026

Small Business Advocacy Review (SBAR) Panels

Provides an overview on Small Business Advocacy Review (SBAR) Panels, which convene for proposed rules unless the rule will not have a significant economic impact on small entities

External Resources for Laws and Regulations

Online resources from other agencies such as the Government Publishing Office and U.S. Congress, as well as Cornell University, can further assist with learning about EPA regulations and locating official documentation such as Federal Register notices.

TSCA Section 5(a)(3)(C) Determination for Premanufacture Number (PMN) P-19-0027

This document describes EPA's pre-manufacture notice review determination under amended TSCA for P-19-0027.

TSCA Section 5(a)(3)(C) Determination for Microbial Commercial Activity Notice (MCAN) J-20-0002

This document describes EPA's Microbial Commercial Activity Notice (MCAN) review determination under amended TSCA for J-20-0002.

TSCA Section 5(a)(3)(C) Determination for Premanufacture Number (PMN) P-20-0022

This document describes EPA's pre-manufacture notice review determination under amended TSCA for P-20-0022.

TSCA Section 5(a)(3)(C) Determination for Premanufacture Number (PMN) P-17-0220

This document describes EPA's pre-manufacture notice review determination under amended TSCA for P-17-0220.

TSCA Section 5(a)(3)(C) Determination for Premanufacture Number (PMN) P-17-0191

This document describes EPA's pre-manufacture notice review determination under amended TSCA for P-17-0191.

TSCA Section 5(a)(3)(C) Determination for Premanufacture Number (PMN) P-18-0085

This document describes EPA's pre-manufacture notice review determination under amended TSCA for P-18-0085.

Manufacturer-Requested Risk Evaluation of Diisodecyl Phthalate (DIDP)

Documents regarding the manufacturer-requested risk evaluation for DIDP

Polymeric Substances on the TSCA Inventory

This paper explains the conventions for polymeric chemical substances on the Toxic Substances Control Act (TSCA) Chemical Substance Inventory.

Certain Chemical Substances Containing Varying Carbon Chain Lengths (Alkyl Ranges Using the Cx-y Notation) on the TSCA Inventory

This paper explains the conventions that are applied to certain listings of chemical substances containing ranges of alkyl chain lengths (i.e., carbon chains of varying lengths) for chemical substances on the Toxic Substances Control Act (TSCA)

Chemistry Assistance Manual for Premanufacture Notification Submitters under TSCA

The purpose of this book is to assist submitters in the technical aspects of Premanufacture Notice preparation.

Products Containing Two or More Substances, Formulated and Statutory Mixtures on the TSCA Inventory

This paper explains the policies that are applied to listings of certain mixtures for the Toxic Substances Control Act (TSCA) Chemical Substance Inventory.