Science & Technology
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Responses to 40 CFR Part 75 Petitions - 2023
Petition responses in 2023
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Responses to 40 CFR Part 75 Petitions - 2020
Approval for an alternative data substitution methodology.
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Responses to 40 CFR Part 75 Petitions - 2019
Approval for an alternative data substitution methodology.
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Responses to 40 CFR Part 75 Petitions - 2018
Approval for an alternative data substitution methodology.
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Responses to 40 CFR Part 75 Petitions - 2016
EPA's responses (in chronological order) to submitted Part 75 petitions in 2016.
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Responses to 40 CFR Part 75 Petitions - 2014
Find responses to petitions submitted by affected units subject to 40 CFR Part 75 in 2014.
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Responses to 40 CFR Part 75 Petitions - 2013
Find responses to petitions submitted by affected units subject to 40 CFR Part 75 in 2013.
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Responses to 40 CFR Part 75 Petitions - 2006
Find responses to petitions submitted by affected units subject to 40 CFR Part 75 in 2006.
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Power Sector Data Crosswalk
A crosswalk matching EPA/CAPD data on combustion units to EIA's data on generators.
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CHP Benefits
Learn about CHP benefits, including increased efficiency, reduced emissions of greenhouse gases and other air pollutants, energy cost savings, and enhanced energy reliability.
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CHP Policies and Incentives
Access state and federal CHP policies and incentives through dCHPP (CHP policies and incentives database)
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CHP Energy and Emissions Savings Calculator
Download the CHP Emissions Calculator, a tool that calculates the difference between the anticipated carbon dioxide, methane, nitrous oxide, sulfur dioxide, and nitrogen oxide emissions from a CHP system to those of a separate heat and power system.
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Data Use and Citation
Citation for CASTNET data use in publications
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Water Quality Standards Regulations: Pueblo of Nambe
Information related to Water Quality Standards for Pueblo of Nambe.
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Strengthened Practices for Peer Review
This document focuses on the rigor of the process for identifying and evaluating actual or potential conflicts of interest for contractor-managed peer reviews of EPA.
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IRIS Bimonthly Public Meeting (Jun 2014)
On June 25-27, 2014, EPA hosted a public meeting/webinar, to provide an opportunity for the public to give input and participate in an open discussion regarding several IRIS chemical assessments of Hexavalent Chromium (Cr(VI)) and Inorganic Arsenic (iAs).
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Volunteer Registration Forms
These forms are provided online for volunteers consent to participate in an EPA clinical study at the EPA Research Facility in North Carolina.
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U.S. EPA. 2000. Science Policy Council Handbook: Peer Review
The goal of the Peer Review Policy and this Handbook is to enhance the quality and credibility of Agency decisions by ensuring that the scientific and technical work products underlying these decisions receive appropriate levels of peer review by independe
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NCEA 2009. Policy and Procedures for Conducting IRIS Peer Reviews
The purpose of this Standard Operating Procedure is to explain EPA's process for independent external peer review of draft human health assessments prepared under EPA’s IRIS Program.
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IRIS Descriptions of Organs/Systems
A list of organ systems/lifestage definitions that provide background to the grouping in the advanced search portion of the website.