Learn the Issues
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If I certify a nonroad flexible-fuel engine under 40 CFR Part 1054, are owners and operators prohibited from using gasoline-ethanol blended fuels containing greater than 10 volume percent ethanol under 80.1504(a)(1) in my nonroad flexible-fuel engine?
See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help. No, owners and operators of nonroad engines, vehicles, and equipment where the nonroad engine is certified under 40 CFR Part 1054 as a flexible-fuel engine are not prohibited from using gasoline-ethanol blended fuels containing greater than 10 volume percent…
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Endangered Species: Information For Pesticide Users
People planning to use pesticides can find information about restrictions on use to protect endangered species as well as tips for ways to protect the environment from pesticide effects.
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Contamination on ANCSA Conveyed Lands
EPA's program to address contamination on lands conveyed under the Alaska Native Claims Settlement Act (ANCSA).
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Point-of-Sale Notification and Shelf Tags for Urban Uses of Certain Pesticides in the San Francisco Bay Area
A Stipulated Injunction and Court Order required EPA to develop a shelf tag to help retailers inform consumers about potential risks to endangered species related to use of certain pesticides. See the shelf tag and pesticide ingredients affected.
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Implementation Guidance for Enhanced Reporting for Registrants of Pet Spot-on Products
These documents provide background and summary information on the pet spot-on enhanced reporting pilot and guidance for implementing the use of standardized incident reporting templates
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EPA Pesticide Container and Repackaging Regulations - Flow Chart 2
A flowchart which diagrams the question "Can I fill this large portable refillable container (greater than 119 gallons)?
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EPA Participation in the International Lead Poisoning Prevention Week of Action
EPA participates in the International Lead Poisoning Prevention Week of Action, which generally takes place in October.
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City of Arkansas City, Kansas - Clean Water Act Public Notice
The EPA is providing notice of a proposed Administrative Penalty Assessment in the form of an Expedited Settlement Agreement against the city of Arkansas City, Kansas, for alleged violations associated with the management of sewage sludge in or around Arka
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Nuclear Weapons Production Waste
The creation of nuclear weapons produced a large amount of waste, which is still being managed today.
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Radiation Used in Nuclear Medicine
Radiopharmaceuticals, or small amounts of radioactive material, are used in nuclear medicine procedures. Some radiopharmaceuticals are used to help detect diseases and some can be placed inside the body near a cancerous tumor to shrink or destroy it.
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City of Gunnison, Colorado - Clean Water Act Public Notice
The EPA is providing notice of a proposed Administrative Penalty Assessment in the form of an Expedited Settlement Agreement against the city of Gunnison, Colorado, for alleged violations associated with the management of sewage sludge in or around Gunniso
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Appendix: Federal Support to Hypoxia Task Force States on Nutrient Reduction Strategies Report
This appendix to the federal strategy, completed in September 2012, describes in detail the types of assistance each agency can provide to HTF states for developing nutrient reduction strategies.
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St. Clair, Missouri - Clean Water Act Public Notice
The EPA is providing notice of a proposed Administrative Penalty Assessment in the form of an Expedited Settlement Agreement against the city of St. Clair, Missouri, for alleged violations associated with the management of sewage sludge in or around St. Cl
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Radioactive Decay
Radioactive decay is the emission of energy in the form of ionizing radiation. Example decay chains illustrate how radioactive atoms can go through many transformations as they become stable and no longer radioactive.
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Nutrient Pollution Outreach and Education Materials
The goal of this site is to assist state and local agencies, watershed groups, nongovernmental organizations and others in developing effective outreach materials related to nutrient pollution.
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Radiation Health Effects
View basic information about how radiation affects human health, including the concepts of acute and chronic exposure, internal and external sources of exposure and sensitive populations.
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Protective Action Guides (PAGs)
The Protective Action Guide (PAG) manual contains radiation dose guidelines that would trigger public safety measures. EPA developed Protective Action Guides to help responders plan for radiation emergencies.
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Types of Anaerobic Digesters
Descriptions of the common differences between of anaerobic digestion systems (e.g. temperature range) and information on the three main types of anaerobic digestion systems.
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Supplemental Data from the 2023 Anaerobic Digestion of Food Waste in the U.S. Survey Results
This page contains two detailed matrix tables of supplemental data from the Anaerobic Digestion Facilities Processing Food Waste in the U.S. survey (2020 & 2021).