The Supreme Court yesterday denied an appeal from the California Trucking Association about AB5, the new employment law in California governing independent-contract work. That means the law goes into effect today, and the trucking industry in the most important state for supply chains will face major upheaval. “It is going to be a radically new world in California’s trucking sector with the imposition of AB5, and it isn’t clear what parts of the industry — if any — are ready for it,” writes John Kingston at FreightWaves. The law was enjoined by a lower court on New Year’s Eve in...