As a motor carrier, you know that you need to pay attention to the FMCSA and their regulations. There are a few letters that you might have heard about — CSA, or Compliance, Safety, Accountability. What is the trucking CSA, and who is affected by it? (And why is there an FMCSA and a CSA? That’s just confusing.) Is it something that your motor carrier is subject to? We’ll explain.