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Ray Minjares leads the ICCT Clean Air Program, an interdisciplinary research team that advises government officials on strategies to address the public health and near-term climate impacts of transportation sector emissions. He currently manages several city, regional and international projects including the Soot-Free Low Carbon Public Fleets project sponsored by the International Climate Initiative, the Zero Emission Bus Rapid-Deployment Accelerator (ZEBRA) with C40 Cities Climate Leadership Group, the Soot-Free Urban Bus Fleets project sponsored by the Climate and Clean Air Coalition (CCAC). As a participant in the CCAC he facilitates the Initiative on Reducing Emissions from Heavy-Duty Vehicles in Fuels jointly with UN Environment. Mr. Minjares has 16 years of experience in environment, energy, and transportation policy at the city, regional, national and international levels. He holds a master’s degree in public health from the University of California, Berkeley and a bachelor degree in international development, environmental studies, and philosophy from the University of California, Los Angeles.


  • June 12: Roadmap for transition to clean bus fleets in emerging economies

  • June 11: E-buses for the masses

    Sustainable bus system project

    The project Sustainable Bus System was developed under IEA´s Advanced motor fuels Technical Cooperation Program, and its aim was to develop a methodology for setting requirements for clean and efficient buses for use in tendering process for transit fleets in developing regions. A driving cycle representative of bus operation in Santiago City was developed and different technologies of buses were tested in Finland and Chile, including diesel, CNG and battery electric. Finally, recommendation for test procedures and use of Santiago Urban Bus Cycle were prepared. The results of this report served as the basis for the official adoption of the Santiago Drive Cycle as the basis for bus procurements in Santiago de Chile and it will be used on tender process for the energy consumption determination and performance, including the first Euro VI diesel and battery electric buses in Latin America.