Final answer:
The federal government can assign motor carriers a Satisfactory, Conditional, or Unsatisfactory rating, depending on their compliance with safety regulations.
Step-by-step explanation:
The federal government can give a motor carrier one of three ratings: Satisfactory, Conditional, or Unsatisfactory. These ratings are meant to reflect the carrier's compliance with safety regulations. A Satisfactory rating indicates full compliance, while a Conditional rating means that there are some issues with compliance that need to be addressed. An Unsatisfactory rating suggests serious compliance failures, and carriers with this rating may be prohibited from operating.