Final answer:
As a for-hire motor carrier operating vehicles with a GVWR of less than 10,000 pounds, you are required to maintain a minimum level of financial responsibility when transporting any quantity of hazardous materials, regardless of the type of commerce.
Step-by-step explanation:
When operating vehicles with a Gross Vehicle Weight Rating (GVWR) of less than 10,000 pounds as a for-hire motor carrier, subpart A of the United States Department of Transportation hazardous materials regulations requires you to maintain a minimum level of financial responsibility when transporting any quantity of hazardous materials. This means that regardless of the type of commerce, you must have the necessary financial coverage to cover any potential liabilities and damages that may arise from the transportation of hazardous materials.