Laws & Regulations
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Baseline Year for the Baseline Year Test (in 40 CFR 93.119)
EPA OTAQ's State and Local Transportation Resources are for air quality and transportation government and community leaders. Updates on the adequacy of state implementation plans (SIPs), and transportation conformity regulations and guidance
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Estimating Greenhouse Gas Emissions
Resources for state and local planners interested in estimating on-road greenhouse gas emissions and assessing the impact of specific travel efficiency strategies.
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State Asset Management Initiatives Documents
A matrix of how states are utilizing asset management practices to help strengthen water system managerial capacity.
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Lead (Pb) Air Quality Standards - Documents from Review Completed in 2016
Lead (Pb) Air Quality Standards - Documents from Review Completed in 2016
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Denial of Requests for Extension of Comment Period: Repeal of Emission Requirements for Glider Vehicles, Glider Engines, and Glider Kits
Denial of Requests for Extension of Comment Period – Two organizations requested that EPA extend the public comment period for the proposed rule.
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Canola Oil Pathways Final Rulemaking
EPA finalizes an action to approve Renewable Fuel Standard (RFS) pathways for certain biofuels that are produced from canola/rapeseed oil.
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Formerly SmartWay Verified List for Aerodynamic Devices
This list provides the archived verified SmartWay Trailer Devices and Device combinations for 53’ Box and refrigerated trailers.
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Age Discrimination Act of 1975
This page defines discrimination based on age.
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Title IX of the Education Amendments Act of 1972
This page defines discrimination under education
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Section 504 of the Rehabilitation Act of 1973
This page describes Section 504 of the Rehabilitation Act
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NPDES Pretreatment Discharge Requirements for Tolmar in Colorado
Under the National Pretreatment Program and control mechanism CO-PF00106, Tolmar is authorized to discharge wastewater to the City of Windsor, Colorado, publicly operated treatment works (POTW).
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NPDES Permit for Chemtrade Refinery Services in Wyoming
Under NPDES permit WY-0034207, Chemtrade Refinery Services, Inc. is authorized to discharge from its wastewater treatment facility located in Fremont County,Wyoming, to an unnamed drainage way that flows into the Little Wind River near St. Stephens, Wyo.
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NPDES Permit for Wesco Operating, Inc. – Sheldon Dome Field in Wyoming
Under NPDES permit WY-0025607, Wesco Operating, Inc. is authorized to discharge from its Sheldon Dome Field wastewater treatment facility in Fremont County, Wyo. to an unnamed ephemeral tributary of Dry (Pasup) Creek, which is tributary to the Wind River.
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NPDES Permit for Wesco Operating, Inc. – Maverick Springs in Wyoming
Under NPDES permit WY-0000469, Wesco Operating, Inc. - Maverick Springs is authorized to discharge from its wastewater treatment facility located in Fremont County, Wyoming to a tributary to Five Mile Creek.
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NPDES Permit for Wesco Operating, Inc. – Winkleman Dome Field in Wyoming
Under NPDES permit WY-0025232, Wesco Operating, Inc. is authorized to discharge from its Winkleman Dome Field wastewater treatment facility in Fremont County, Wyo. to an unnamed ephemeral tributary of Big Horn Draw, a tributary to the Little Wind River.
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Ground Water and Drinking Water
EPA's Office of Ground Water and Drinking Water
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National Primary Drinking Water Regulations
Table of the National Primary Drinking Water Regulations (NPDWRs or primary standards) that are legally enforceable standards that apply to public water systems.
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NPDES Permit for Southern Ute Indian Tribe Wastewater Treatment Plant in Colorado
Under NPDES permit number CO-0022853, the Southern Ute Indian Tribe is authorized to discharge from its wastewater treatment facility near Ignacio, Colorado, in La Plata County,
to Rock Creek, a tributary of the Pine River. -
NPDES Permit for Phoenix Production Company – Sheldon Dome Field in Wyoming
Under NPDES permit WY-0024953, Phoenix Production Company is authorized to discharge from its Sheldon Dome Field wastewater treatment facility in Fremont County, Wyoming, to an unnamed ephemeral tributary of Dry Creek, which is tributary to the Wind River.
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Beryllium Rocket Motor Firing: National Emission Standards for Hazardous Air Pollutants (NESHAP)
Learn about this NESHAP for Beryllium Rocket Motor Firing, read the rule summary and find the rule history and code of federal regulation text