who we are / Staff


Aaron Isenstadt

Aaron Isenstadt

Program Associate
Works out of: Washington, DC
Started w/ ICCT in: 2015

Aaron Isenstadt is a Program Associate in the Passenger Vehicle program, with expertise in vehicle technology and policy. Aaron joined the ICCT as a PV Fellow in October 2015 and his work has been supporting the U.S. passenger vehicle greenhouse gas technology assessment. Before joining the ICCT, Aaron worked at the US Patent and Trademark Office as a patent examiner. He holds a B.S. in Mechanical Engineering from Brown University and in his free time volunteers as a bike mechanic at a local farmer’s market in DC.

Recent Work

  • Developing hydrogen fueling infrastructure for fuel cell vehicles: A status update


    Provides a synthesis of information regarding the global development of hydrogen fueling infrastructure to power fuel cell vehicles. Compiles research on hydrogen infrastructure deployment, fuel pathways, and planning based on developments in the prominent fuel cell vehicle growth markets around the world.

  • Diesel Technology Developments



    Highlights important innovations and trends in diesel engines and emission control systems, some of which were not considered when the 2025 CAFE and greenhouse gas standards were finalized, yet promise to improve diesel passenger vehicles’ cost-effectiveness, especially for larger classes.

  • Diesel Engines

    Working paper


    Diesel engines, aftertreatment, and emissions control have developed since 2012, improving diesel vehicles’ cost-effectiveness, particularly for larger passenger vehicle classes.