Science & Technology
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Documentation for Post-IRA 2022 Reference Case
On this page you will find documentation about EPA’s Platform v6 assumptions, updates, changes, and enhancements, including the full support document as well as additional tables and attachments.
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EPA Method 8270E (SW-846): Semivolatile Organic Compounds by Gas Chromatography/Mass Spectrometry (GC-MS)
This method provides procedures for analysis of solid, water and wipe samples for detection and measurement of semivolatile organic compounds, using GC-MS.
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About Green Infrastructure
Green infrastructure may be used to comply with CWA requirements, treat stormwater, improve water quality, and mitigate flooding while also beautifying our communities.
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Donaldson Technology—Series 6400 Diesel Oxidation Catalyst (DOC) & Spiracle Closed Crankcase Filtration System
This retrofit technology is included on EPA's Verified Technologies List for Clean Diesel.
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Locomotive Technology
This page provides information on the locomotive verification process for manufacturers and the verified lists and information for partners.
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DonaldsonTechnology—Low NO2 Diesel Particulate Filter for Non-Road Applications (NR-LNF DPF) System
This retrofit technology is included on EPA's Verified Technologies List for Clean Diesel.
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Idling Reduction Technologies (IRTs) for Trucks and School Buses
This page provides links to information for manufacturers and partners for idling reduction technologies for trucks.
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Memorandum of Agreement between EPA and California Air Resources Board
Memorandum of Agreement between EPA and California Air Resources Board about certified diesel emission reduction technologies.
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Engine Family Groups for Verification of Clean Diesel Technology
These documents show engine family boxes that represent groupings of engine families with similar characterists (i.e., the emissions standards that the engines were built to) for current and past model years.
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Caterpillar Technology—Marine Engine Emissions Upgrade Group Kit #1 (MUI to EUI)
This retrofit technology is included on EPA's Verified Technologies List for Clean Diesel.
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Chesapeake Bay TMDL Midpoint Assessment
This page describes what the midpoint assessment is, its role in the Chesapeake Bay TMDL, and how it will assist in restoring the Chesapeake Bay.
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Memorandum from Secretary Tayloe Murphy
This page provides the memorandum sent by Secretary Tayloe Murphy to the Chesapeake Bay Program Principals' Staff Committee (PSC) that summarized the comprehensive set of agreements made by Bay watershed partners.
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Chesapeake Bay TMDL Document
This page provides the Total Maximum Daily Load (TMDL) report for the Chesapeake Bay. It includes the executive summary, main report, and appendices. The Chesapeake Bay TMDL was established by U.S. EPA Region 3 on December 29, 2010
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EPA Interim Evaluation of 2014-2015 Milestone Progress in the Chesapeake Bay Watershed
This page provides the EPA interim evaluations of the 2014-2015 milestones for the Chesapeake Bay TMDL. These interim assessments provide a mid-point check on the progress made on the 2014-2015 milestones, recognizing the achievements made in 2014.
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Chesapeake Bay TMDL Appendices
This page links to the appendices of the Chesapeake Bay TMDL document
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EPA Interim Evaluation of 2012-2013 Milestone Progress in the Chesapeake Bay Watershed
This page provides the EPA interim evaluations of the 2012-2013 milestones for the Chesapeake Bay TMDL. These interim assessments provide a mid-point check on the progress made on the 2012-2013 milestones, recognizing the achievements made in 2012.
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Sector Growth Demonstration in the Chesapeake Bay Watershed
EPA continues to work with the Bay states and DC to adress areas of concern identified in the final reports. EPA has asked each state and DC to prepare a Sector Load Growth Demonstration using the Sector Load Growth techical memorandum as a guide.
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Chesapeake Bay Agreements
Since 1983, the Chesapeake Bay Program (CBP) partnership has used written agreements to guide the restoration of the Chesapeake Bay and its watershed. This page provides links to those agreements.
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Comments on EPA Evaluations of Trading and Offset Programs in the Chesapeake Bay Watershed from Interested Stakeholders
This page provides all of the comments made by EPA partners and stakeholders on the EPA assessments of Trading and Offset Programs in the Bay states and District of Columbia.
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EPA Evaluations of Phase I Watershed Implementation Plans in the Chesapeake Bay Watershed
This page provides the PDF documents of EPA's evaluation of the Phase I WIPs submitted by the jurisdictions (Delaware, District of Columbia, Maryland, New York, Pennsylvania, Virginia and West Virginia).