This is the California State Transportation Agency Climate Action Plan for Transportation Infrastructure. CAPTI 2.0 was published recently.
The link is to the summary page with URLs to as much detail as you can stand.
https://calsta.ca.gov/subject-areas/climate-action-plan
As it says,
"CAPTI builds on executive orders signed by Governor Gavin Newsom in 2019 and 2020 targeted at reducing greenhouse gas (GHG) emissions in transportation, which account for more than 40 percent of all polluting emissions, to reach the state's ambitious climate goals."