Learn the Issues

This page shows all of the pages at www.epa.gov that are tagged with Learn the Issues.

  • Program Contacts for Patapsco Watershed/Baltimore Region (Maryland)

    Patapsco Watershed/Baltimore Region (Maryland) Area of the Urban Waters Federal Partnership (UWFP) reconnects urban communities with their waterways by improving coordination among federal agencies and collaborating with community-led efforts.

  • Release notification requirements for an EHS generated as by-product

    Pursuant to Section 304(a)(2), the owner or operator of a facility must report to the State Emergency Response Commission (SERC) and the Local Emergency Planning Committee (LEPC) any releases of extremely hazardous substances (EHSs) or CERCLA hazardous substances which equal or exceed established reportable quantities (RQs). This requirement only applies…

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  • Federal or state UST requirements for gasoline and diesel thresholds

    Do facilities have to comply with the federal UST requirements or with state UST requirements to be eligible to use the §§311/312 gasoline and diesel fuel thresholds? Facilities must comply with either federal UST requirements ( 40 CFR Part 280 ) or, if applicable, the requirements of the state UST…

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  • Definition of hazardous chemical and OSHA's MSDS requirement for determining applicability of EPCRA 311/312

    The requirements of 40 CFR Part 370, promulgated pursuant to EPCRA Sections 311 and 312, apply to facilities that have certain quantities of hazardous chemicals for which they are required, under the Occupational Safety and Health Act (OSHA), to prepare or have available Material Safety Data Sheets (MSDSs). How should…

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  • Consumer product exemption and products that require licensing

    Pennsylvania restricts the use of a product that is packaged for distribution and use by the general public by requiring users within the State to obtain a license. This product requires a material safety data sheet under OSHA, and thus may be subject to the reporting requirements of EPCRA Sections…

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  • Are polymers in pellet form exempt from the definition of hazardous chemical?

    If polymers are in pellet form and require material safety data sheets, are they exempt from the definition of hazardous chemical under Section 311(e)(2)? Section 311(e)(2) exemption from the definition of hazardous chemical applies to "any substance present as a solid in any manufactured item to the extent exposure to…

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  • MOVES4 Update Log

    a chronological listing of updates to MOVES4 Update Log, EPA’s Motor Vehicle Emission Simulator.

  • Would pesticide sprayed on ground count towards §302 threshold?

    Section 302 requires owners and operators of facilities that have extremely hazardous substances (EHSs) present above the threshold planning quantity (TPQ) to participate in emergency planning ( 40 CFR §355.20 ). If a facility has a pesticide sprayed on its grounds without first being stored at the facility, must the…

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  • Threshold planning quantity for extremely hazardous substances in solid form

    Extremely hazardous substances (EHSs) that are in solid form are subject to one of two different threshold planning quantities (TPQs), a lower level or 10,000 pounds ( 40 CFR 355.15 ). Why does the list of EHSs only have one TPQ for certain solids, such as sodium cyanide? If a…

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  • Calculating EHS quantities within landfills

    How are the quantities of the extremely hazardous substances (EHSs) to be calculated in determining if landfills are subject to the section 302 requirements? EPA realizes the practical problems presented for landfills in complying with the Title III requirements. Owners of these facilities must determine, based on reasonably available information…

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  • Climate Change Legislative Analyses

    Analyses requested by Congress. These include analyses of legislative proposals, strategies to reduce the risk of climate change, and economic issues related to climate change.

  • Presentations on the Black Carbon Diesel Initiative

    EPA has presented on the successes of the Black Carbon Diesel Initiative in the Russian Arctic.

  • 2014 National Emission Inventory (NEI) Report

    Analysis of the NEI and comparison to previous years of inventory data.

  • About the Clean Air Technology Center

    The Clean Air Technology Center provides resources for emerging and existing air pollution prevention and control technologies and provides public access to data and information on their use, effectiveness and cost.

  • Tern Island Preliminary Assessment and Technical Support Document

    Tern Island Preliminary Assessment and Technical Support Document and summary.

  • Clean Air Act Permitting Best Practices Documents

    Best practices that regulatory agencies, industry and the public may consider when permitting emissions sources under the Clean Air Act (CAA).

  • Approved Air Quality Implementation Plans in Region 4

    Read about the approved State Implementation Plans, Tribal Implementation Plans, as well as any Federal Implementation Plans for Region 4.

  • Supporting Communities

    Landing page for Supporting Communities

  • Brownfields in EPA Region 8

    EPA Region 8 manages Brownfields and Land Revitalization programs in Colorado, Montana, North Dakota, South Dakota, Utah and Wyoming.

  • Mold Image Library

    The image library contains mold-related images in seven categories. There are also animated images that you can choose to view and download. These photos may be used for presentations and educational purposes without contacting EPA.