EPA Science Advisory Board requests public nominations of scientific experts for the CASAC PM Panel

The Environmental Protection Agency (EPA) Science Advisory Board Staff Office requests public nominations of scientific experts for the Clean Air Scientific Advisory Committee (CASAC) PM Panel. This panel will provide advice through the chartered CASAC on updates to the science and policy assessments supporting the agency’s reconsideration of the December 2020 decision to retain the PM National Ambient Air Quality Standards. Nominations should be submitted by July 16, 2021.

More information is available in today’s Federal Register: https://www.govinfo.gov/content/pkg/FR-2021-06-25/pdf/2021-13498.pdf

El Paso 2015 Ozone Notification of Availability

On Monday, June 14, 2021, EPA published Intended Air Quality Designations for the 2015 Ozone National Ambient Air Quality Standards; Response to the July 10, 2020, Court Decision Addressing El Paso, Texas and Weld County, Colorado: Notification of Availability and Public Comment Period in the Federal Register, starting a 30-day public comment period on EPA’s intended 2015 ozone NAAQS designations for El Paso County, Texas and Weld County, Colorado. Comments must be received on or before July 14, 2021: https://www.govinfo.gov/content/pkg/FR-2021-06-14/pdf/2021-11456.pdf

Nominations for EPA’s Mobile Sources Technical Review Subcommittee

EPA is seeking nominations from representatives of nonfederal interests such as community and/or environmental justice interests, state and local government interests, environmental advocacy groups, future transportation options and shared mobility interests, transportation, and supply chain shippers, marine and inland port interests, and mobile source emission modeling interests to serve on the Mobile Sources Technical Review Subcommittee (MSTRS; a subcommittee of the Clean Air Act Advisory Committee). MSTRS members are appointed by the EPA Administrator for three-year terms with the possibility of reappointment to a second term. The subcommittee’s website is at https://www.epa.gov/caaac/mobile-sources-technical-review-subcommittee-mstrs-caaac. The Federal Register Notice announcing the request for nominations was published earlier today, and nominations must be received by August 2, 2021.

EPA posts new MOVES report – Overview of EPA’s MOtor Vehicle Emission Simulator (MOVES3)

EPA has summarized information about the MOVES mobile source air pollution emission inventory model in a new report: Overview of EPA’s MOtor Vehicle Emission Simulator (MOVES3).  We expect this document will be a useful technical reference for MOVES modelers and others who use MOVES results.

The new report includes the following sections:

Introduction, including information on MOVES scope, versions, and typical uses.

Updates for MOVES3, including a summary of new features, inputs, and updates to the user interface.

MOVES Onroad Algorithms, briefly summarizing the calculation methods used to estimate vehicle emissions.

MOVES Nonroad Algorithms, briefly summarizing the calculation methods used to estimate emissions from nonroad equipment.

MOVES Software Structure, including information on MOVES software components and MOVES databases.

MOVES3.0 Results, including comparisons of MOVES3 and MOVES2014b emission estimates for onroad vehicles at the national and county scale for a variety of years, and graphs of national nonroad emissions over time.

MOVES Evaluation, summarizing the MOVES review process and approaches to model evaluation.

Considerations When Using MOVES, explaining features of the MOVES design and input data that may affect the model’s applicability for specific modeling uses.

MOVES Documentation, providing links and descriptions to MOVES extensive documentation with more detailed information on guidance, user instructions, training and MOVES default inputs.



The MOVES3 overview report is available for download at www.epa.gov/moves/latest-version-motor-vehicle-emission-simulator-moves, as well as on the MOVES technical report pages https://www.epa.gov/moves/moves-onroad-technical-reports and https://www.epa.gov/moves/nonroad-technical-reports.

FHWA Air Quality and Sustainable Transport Highlights

The purpose of this message is to inform you that the latest issue of the FHWA Air Quality and Sustainable Transport Highlights is now available.

The Highlights provide the latest news and information on transportation related air quality and sustainability activities, including information on transportation conformity, resiliency, and other related activities.

Items of interest in this issue include:

  • FY 2020 Congestion Mitigation and Air Quality Improvement (CMAQ) Program Annual Reports
  • EPA’s Motor Vehicle Emission Simulator (MOVES3) now official air quality model.

Past issues of the Air Quality and Conformity Highlights are available at: http://www.fhwa.dot.gov/environment/air_quality/conformity/highlights/

Past issues of the Sustainable Transport Newsletter are available at: https://www.fhwa.dot.gov/environment/sustainability/newsletter/index.cfm

I encourage you to share the Highlights with State and local transportation and air quality partners, and all who may be interested in transportation related air quality and sustainable transport issues. Divisions and the Resource Center are encouraged to email suggestions for items to be included in the Highlights to Victoria Martinez at [email protected] or Becky Lupes at [email protected].