This is definitely one of the factors at play, and the CARB regulations will make the problems worse long term as the number of truck options allowed to be sold and registered in the state will shrink. But I don't think a lack of trucks is the driving force behind the log jam right now, today.Posted about that on the shortages thread...
The California Version of The Green New Deal and an October 16, 2020, EPA Settlement With Transportation is What's Creating The Container Shipping Backlog - Working CA Ports 24/7 Will Not Help, Here's Why - The Last Refuge
Hundreds of requests for details on the specifics of the container shipping backlog. So, I spent 3 days calling sources, digging for details and gathering information on the substantive issue at hand. The epicenter of the problem is not what is being outlined by financial media, corporate...theconservativetreehouse.com
Embedded link to the EPA
Vehicle Emissions California Waivers and Authorizations | US EPA
This page lists Federal Register Notices concerning California Waivers originated by the Office of Transportation and Air Quality (OTAQ).www.epa.gov
I was just in Long Beach last month for the Advanced Clean Transportation Expo. It's held literally right next to the port. Day and night trucks are lined up and idling, ready to pick up containers off the docks. The line of semi trucks is miles long. The problem is not just about getting more trucks to pick up the goods as the Conservative Treehouse article claims. Driver shortages and the ridiculous new regulations that strangle the ability of contract workers and owner operators to pick up some of the slack is likely a contributing factor too.
Maybe a lack of trucks is more of an issue at the Port of LA, but in Long Beach it was plain to me that there were plenty of trucks waiting to pick up loads, they just weren't moving very quickly.