CSA most commonly stands for two main things depending on the context:

• Compliance, Safety, Accountability : This is a safety compliance and enforcement program by the Federal Motor Carrier Safety Administration (FMCSA) in the U.S. It holds motor carriers and drivers accountable for safety, using data from inspections, violations, and crashes to prioritize interventions and improve road safety

• Community Supported Agriculture : This is a production and marketing model where consumers buy shares of a farm’s harvest in advance, supporting local farmers directly. Members pay upfront for a season’s worth of produce, sharing the risks and benefits of farming. This model promotes fresh, sustainably produced food and connects consumers with local agriculture

In summary, CSA can mean either a federal safety program for motor carriers or a community-based farm subscription model, depending on the context.