Abstract
The purpose of this report is to provide a research-driven analysis of options that can put California on a pathway toachieve carbon-neutral transportation by 2045. The report comprises thirteen sections. Section 1 provides an overview ofthe major components of transportation systems and how those components interact. Section 2 discusses the impacts theCOVID-19 pandemic has had on transportation. Secti on 3 discusses California’s current transportation-policy landscape.These three sections were previously published as a synthesis report. Section 4 analyzes the different carbon scenarios,focusing on “business as usual” (BAU ) and Low Carbon (LC1). Section 5 provides an overview of key policy mechanisms toutilize in decarbonizing transportation. Section 6 is an analysis of the light-duty vehicle sector, section 7 is the medium- and heavy-duty vehicle sectors, section 8 is reducing and electrifying vehicle miles traveled, and section 9 is an analysis oftransportation fuels and their lifecycle. The following sections are an analysis of external costs and benefits: section 10analyzes the health impacts of decarbonizing transportation, section 11 analyzes equity and environmental justice, andsection 12 analyzes workforce and labor impacts. Finally, future research needs are provided in section 13. The studyoverall finds that cost-effective pathways to carbon-neutral transportation in California exist, but that they will requiresignificant acceleration in a wide variety of policies.