Learn the Issues
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Testing Consent Agreement for N-methylpyrrolidone
EPA has signed an Enforceable Consent Agreement (ECA) pursuant to the Toxic Substances Control Act (TSCA), 15 U.S.C. 2601 et seq., with Arco Chemical Company, BASF Corporation, and International Specialty Products Company.
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Testing Consent Order on Crotonaldehyde
This document announces that EPA has signed an enforceable testing Consent Order with Eastman Kodak Company (Kodak).
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EPA Response Letter for Section 21 Petition
EPA letter responding to two petitions that were filed by the Biobased and Renewable Products Advocacy Group (BRAG).
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Testing Consent Order on Dilsodecyl Phenyl Phosphite
This rule announces that EPA has signed an enforceable Testing Consent Order with three manufacturers of dilsodecyl phenyl phosphite (PDDP CAS No, 25550-98-5), who have agreed to perform certain neurotoxicity tests PDDP.
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Testing Consent Order on Methyl Tert-butyl Ether and Response to the Interagency Testing Committee
This document announces that EPA has signed an enforceable Testing Consent Order for methyl tert-butyl ether (MTBE) with five manufacturers of the MTBE Health Effects Testing Task Force.
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How to Search for Publications Using Simple Search
Top level description of the NSCEP/NEPIS simple search recommended usage and system behavior
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Frequent Questions about Using the National Service Center for Environmental Publications
Information to fill in the gaps in explaining how to use the NSCEP site that may help the public when trying to locate and obtain documents.
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Guidance Documents Managed by the Office of Chemical Safety and Pollution Prevention (OCSPP)
Links to policy and guidance documents managed by the Office of Chemical Safety and Pollution Prevention (OCSPP).
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Brad Anderson d/b/a Anderson Farm - 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 Brad Anderson d/b/a Anderson Farm for alleged violations of the CWA. Anderson Farms excavates and sells soil at and from th
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City of Prosser, Washington - 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 Prosser, Washington, for alleged violations associated with the management of sewage sludge in or around Prosse
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EPA Evaluation of 2022-2023 Milestone Progress and 2024-2025 Milestone Commitments
EPA assesses 20242025 milestone progress and future commitments.–
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Steps to Get the Safer Choice Label on Your Product
EPA allows the use of the Safer Choice Label by high-performance products that demonstrate safer chemistry
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Northern Indiana Public Service Company Bailly Generating Station Current Documents, Reports and Graphics for 2014
Documents, Reports and Graphics for Northern Indiana Public Service Company Bailly Generating Station
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Why did NOAA recalculate the historic time series record of Lake Erie harmful algal bloom severity in 2025?
Recent advances in satellite technology give scientists a much clearer picture of what’s happening with harmful algal blooms in large bodies of water like Lake Erie. Modern satellites provide imagery nearly daily and at nine times the spatial resolution as before. They can more accurately detect and quantify the amount…
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What changed when NOAA updated their time series record in 2025?
With the recent calibration of data, on average, the severity level of annual blooms since 2013 has been lowered. For example, the formerly classified “severe” bloom in 2021 will now be classified as a “moderately severe” bloom. 2011 and 2015 are still considered “very severe” blooms (i.e., greater than 7…
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Has the goal for what we are trying to achieve in Lake Erie changed?
No. NOAA’s update to their time series record does not change the definition of a “severe” or “mild” bloom, nor does it change the goal to achieve only a “mild” or no harmful algal bloom on an annual basis. More specifically, in the 2012 Great Lakes Water Quality Agreement, Canada…
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Does the change provide any new insight on progress being made in Lake Erie?
NOAA’s updated time series shows a decline in bloom severity since 2019. This is consistent with the Annex 4 Adaptive Management Task Team’s assessment that lake conditions appear to no longer be getting worse. See: 5-Year Binational Adaptive Management Evaluation for Lake Erie (2017-2021): Measuring the Ecosystem Response to Nutrients…
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What happens next?
Any new assessments of HAB severity will use the updated time series for comparison. While there may be minor adjustments as NOAA continues to review the data quality and processing methods, researchers do not anticipate any significant changes to the HABs severity index now that the Copernicus Sentinel 3 satellite…
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Pollution Prevention Works: A Storytelling Challenge for Students, 2023 Winners
This page provides an overview of the TRI Pollution Prevention Video Challenge.
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If a permit is prioritized for enhanced outreach, does this mean that EPA will require stricter emission or discharge limits, or deny a permit?
An EPA regional’ office’s decisions on whether to issue a permit and, if so, the conditions to impose within a permit are distinct from the EPA regional office’s decisions about the outreach EPA may perform during the permitting process. EPA’s decisions on whether to issue a permit and what permit…