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Laws & Regulations

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.
Publicly Owned Treatment Works General Permit (POTW GP) for Massachusetts & New Hampshire

Documents, links & contacts for the Notice of Availability of the final National Pollutant Discharge Elimination System (NPDES) General Permits for the Discharge of Wastewater from Certain Publicly Owned Treatment Works Treatment Plants (POTW).
Expired Remediation General Permits for Massachusetts & New Hampshire

Information and documents from expired Remediation General Permits for Massachusetts and New Hampshire.
Regional Haze Rule Revisions Early Engagement Public Webinar

Learn about webinars covering the EPA's Regional Haze Rule Revision.
Basics of SIP Requirements

SIP basics
Interim Davis Bacon Act Guidance

wage and fringe benefits guidance for contractors and subcontractor
Pesticide Active Ingredient Production Industry: National Emission Standards for Hazardous Air Pollutants (NESHAP)

This action promulgates national emission standards for hazardous air pollutants (NESHAP) for the pesticide active ingredient (PAI) production source category under section 112 of the Clean Air Act as amended (CAA or Act).
Chromium Electroplating: National Emission Standards for Hazardous Air Pollutants

Includes rule history, Federal Register citations, and implementation information for 40 CFR 63 Subpart N.
Sulfur Dioxide (SO2) Designations Round 3: South Carolina State Recommendation and EPA Response

South Carolina recommendation for Round 3 area designations and EPA's response.
Sulfur Dioxide (SO2) Designations Round 3: Puerto Rico Recommendation and EPA Response

Puerto Rico recommendation for Round 3 area designations and EPA's response.
Sulfur Dioxide (SO2) Designations Round 3: Maryland State Recommendation and EPA Response

Maryland recommendation for Round 3 area designations and EPA's response.
Sulfur Dioxide (SO2) Designations Round 3: Louisiana State Recommendation and EPA Response

Louisiana recommendation for Round 3 area designations and EPA's response.
Steam Electric Power Generating Effluent Guidelines - Rule Reconsideration

Overview and documents pertaining to reconsideration of the 2015 final rule for the Steam Electric Effluent Guidelines regulation (40 CFR Part 423).
Sulfur Dioxide (SO2) Designations Round 3: Maine State Recommendation and EPA Response

Maine recommendation for Round 3 area designations and EPA's response.
Steam Electric Power Generating Effluent Guidelines Questionnaire

Overview and documents for the 2010 questionnaire sent to steam electric power plants
Gum and Wood Chemicals Manufacturing Effluent Guidelines Documents

Support documents for Gum and Wood Chemicals Manufacturing Effluent Guidelines (40 CFR Part 454)
Grain Mills Effluent Guidelines Documents

Support documents for Grain Mills Effluent Guidelines (40 CFR Part 406)
Sulfur Dioxide (SO2) Designations Round 3: Kentucky State Recommendation and EPA Response

Kentucky recommendation for Round 3 area designations and EPA's response.
Sulfur Dioxide (SO2) Designations Round 3: Oklahoma State Recommendation and EPA Response

Oklahoma recommendation for Round 3 area designations and EPA's response.

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