1. Improve air quality for all Californians, especially those that rely on transit and live in areas where transit buses are most prevalent. 2. Increase penetration of the first wave of ZE heavy-duty technologies into applications that are well suited to their use to further achieve emission reduction benefits. 3. Improve vehicle fuel efficiency, better utilize renewable energy, and reduce dependency on petroleum and other fossil fuels. 4. Expand the ZE vehicle industry to bring high quality jobs to local communities and a trained workforce to California. 5. Provide other societal benefits by encouraging improved mobility and connectivity with ZE transportation modes and reduced growth in light-duty vehicle miles traveled.