Example: Normally, use of a Government automobile by travel between home and place of duty would not be considered official business and could not be authorized. An exception to this rule might be appropriate in a situation where an employee is required to leave early in the morning to attend a meeting in a distant city, or to return late in the day from such a meeting. Allowing the employee to drive a government car to his or her home the night before in order to leave from home, or to return to his or her home in the evening upon completion of the trip is permissible, provided the employee does not use the car for any personal reason.
45 C.F.R. §73.735-304