Learn the Issues

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

  • Air Quality Dispersion Modeling - Screening Models

    Models that are often applied before applying a refined air quality model to determine if refined modeling is needed.

  • Pesticide Environmental Stewardship Program Grants

    Overview of new Pesticide Environmental Stewardship Program Grants

  • EPA Proposes Registration of Products Containing Bacillus velezensis strain RTI301 and Bacillus subtilis strain RTI477, New Microbial Active Ingredients

    EPA is proposing to register five biopesticide products containing Bacillus velezensis strain RTI301 and/or Bacillus subtilis strain RTI477, two new microbial active ingredients

  • Pesticide Environmental Stewardship Program (PESP)

    PESP is an EPA partnership program that works with the nation's pesticide-user community to promote IPM practices. Pesticide users can reduce the risks from pests and pesticides. Members include organizations and companies in the pesticide-user community.

  • Kwik Trip, Inc. d/b/a Kwik Star #1293 - 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 Kwik Trip, Inc. d/b/a Kwik Star #1293 for alleged violations at the Sioux City, Iowa facility.

  • EPA Response to RFR 16002A; issued 06/08/2023

    This page contains the Agency's response to Request for Reconsideration 16002A

  • Community Involvement

    The goal of Superfund community involvement is to advocate and strengthen early and meaningful community participation during Superfund cleanups.

  • Documents provided in the October 21, 2021 Union Pacific response to EPA

    Read Union Pacific Railroad’s response and the documents they provided to EPA on October 21, 2021

  • Emergency Response Alternatives

    Based on the National Contingency Plan, EPA defines the following types: classic emergencies, requiring on-site activities within minutes/hours; time-critical actions, which must occur within 6 months; and non-time-critical actions, which can take longer.

  • The Federal Emergency Management Agency's National Incident Management System

    The NIMS provides an integrated framework defining the roles and responsibilities of federal, state and local first responders, developed with responders from different jurisdictions and disciplines, to better work together during emergency events.

  • Emergency Planning and Response Authorities

    The federal government's responsibilities for emergency response are established by statute and by executive orders issued by the President.

  • National Response System

    The NRS, a multi-layered system of individuals and teams, routinely and effectively responds to a wide range of oil and hazardous substance releases. The National Contingency Plan (NCP) provides the framework for NRS and establishes how it works.

  • National Response Framework (NRF)

    The NRF establishes a single, comprehensive approach to domestic incident management to prevent, prepare for, respond to, and recover from terrorist attacks, major disasters, and other emergencies. Built on the National Incident Management System template.

  • EPA's On-Scene Coordinators (OSCs)

    These are the federal officials responsible for monitoring or directing responses to all oil spills and hazardous substance releases reported to the government. They are responsible for assessment, monitoring, response assistance, and evaluation.

  • Program 3 applicability and NAICS code determination

    A covered process that is ineligible for Program 1 will be subject to Program 3 requirements if the process is in one of ten specified North American Industrial Classification System (NAICS) codes, or is subject to the OSHA Process Safety Management (PSM) standard (40 CFR Part 68.10(d)). When determining Program…

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  • What does "same industrial group" mean?

    Operations at a site that belong to the same three-digit North American Industry Classification System (NAICS) code prefix (which has replaced the old SIC codes) belong to the “same industrial group. In addition, where one or more operations at the site serve primarily as support facilities for the main operation…

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  • Updating RMP if EPA lists a new substance

    What if EPA lists a new substance? You will have three years from the date on which the new listing is effective to come into compliance for any process that is covered because EPA has listed a new substance.

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  • Threshold determination for mixture containing flammable substance and water

    A stationary source has in a process a mixture containing 9,000 pounds of butane and 1,001 pounds of water. The mixture meets the criteria for a National Fire Protection Association flammability rating of 4 (NFPA 4). Is this process covered under the RMP regulations? Yes. Where the concentration of the…

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  • Stationary source subject to OSHA PSM but below EPA threshold

    A stationary source is subject to the OSHA process safety management standard (PSM) because it exceeds the OSHA PSM threshold for chlorine. The stationary source does not, however, exceed the threshold for chlorine (or any other regulated substances) in a process under the Risk Management Program regulations (40 CFR §68.130)…

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  • Should tank capacity be considered when determining thresholds?

    When determining whether a threshold amount of a regulated substance is present in a process (e.g., a tank), must the owner or operator of a stationary source consider the total capacity of the process, or the actual amount of regulated substance contained in the process? The threshold determination is based…

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