Science & Technology
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Definitions / Measurements - FAQ
Definitions and Measurements FAQs
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U.S. Government’s International Methane Mitigation Activities: 2018 Accomplishments
The U.S. Government’s Global Methane Initiative Accomplishments ANNUAL REPORT (2018)
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System Documentation and Guidance for Production Volume Reporting
This page provides system documentation and guidance for production volume reporting for heavy-duty engines.
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General Emissions Inventory Information
Contact emails
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National Water Reuse Action Plan: Annual Progress Updates
Document download page for Annual Updates on Collaborative Progress, summarizing the accomplishments of the National Water Reuse Action Plan since implementation began in February 2020.
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Partnership to Evaluate Flame Retardant Alternatives to HBCD
The partnership project on alternatives to HBCD was convened to compare human health and environmental impacts of HBCD and its alternatives to inform decision-making
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Bioassessment and Biocriteria Program Status for Maine: Streams and Wadeable Rivers
Biocriteria Program Status of Alabama
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Partnership to Evaluate Flame Retardant Alternatives to DecaBDE
The partnership on flame retardant alternatives to decaBDE was convened to involve multiple stakeholders to help decision makers choose safer alternatives
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Alternatives to Certain Phthalates Partnership
The alternatives assessment partnership project on alternatives to certain phthalates seeks to eplore the human health and environmental profiles of eight action plan phthalates and functional alternatives
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Section 1: Regulatory Context of the HRS
Learn about the regulatory context of the Hazard Ranking System (HRS), the primary tool that EPA uses to place sites on the National Priorities List (NPL).
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Bioassessment and Biocriteria Program Status for Ute Mountain Ute Tribe: Streams and Wadeable Rivers
Bioassessment and Biocriteria Program Status for Ute Mountain Ute Tribe.
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TSCA Experimental Release Application (TERA) for Pseudomonas putida TVA8, R07-0001
TERA submitted by Micro Systems Technologies (MST), Dayton, OH, and the Purdue University, West Lafayette, IN to update approved TERA R04-0001 and -0002, and Premanufacture Notice (PMN) P-95-1601.
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Project Data and Reporting
Field Branches Quality System and Technical Procedures
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Procedures for Groundwater Sampling in the Laboratory Services and Applied Science Division
Field Branches Quality System and Technical Procedures
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Procedures for Collecting Waste Samples
Field branches quality systems and technical procedures.
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Risk Management for Methylene Chloride
In April 2023, EPA proposed a prohibition on most uses of methylene chloride to protect human health.
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Interagency Testing Committee
The ITC's web site is a dynamic interactive vehicle that enables industry to electronically submit unpublished data and for the public (including industry) to retrieve these data and other information created or reviewed by the ITC.
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Premanufacture Notices (PMNs) and Significant New Use Notices (SNUNs) Table
This table is a list of PMNs and SNUNs submitted to the EPA.
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Exemptions Table
This page describes what happens to a premanufacture or exemption notice that is submitted to the EPA.
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Air Quality Modeling Session (2023 EIC)
Presentations/papers given at the aq modeling session of the 2023 IEIC