In March 2010, Nor-Cal Produce, a family-owned produce business in West Sacramento, was fined $32,500 by the California Air Resources Board (ARB, or CARB). The company was not charged with, or even accused of, illegal emissions; like many other businesses, it had merely failed to notice a new regulation posted by CARB requiring all semi-trailers, shipping containers, vans, and rail cars with diesel-powered refrigerators to file a report with the agency.