Is a motor vehicle owned by an owner-operator, and being dead-headed (returning empty), or a tractor that is being bobtailed (operating without a trailer), subject to the financial responsibility regulations?

Part 387

Section § 387.3: Applicability.

Question 5: Is a motor vehicle owned by an owner-operator, and being dead-headed (returning empty), or a tractor that is being bobtailed (operating without a trailer), subject to the financial responsibility...