36 C.F.R. § 1004.13 Obstructing traffic.
Title 36 - Parks, Forests, and Public Property
The following are prohibited: (a) Stopping or parking a vehicle upon a Presidio Trust road, except as authorized by the Executive Director, or in the event of an accident or other condition beyond the control of the operator. (b) Operating a vehicle so slowly as to interfere with the normal flow of traffic.
Title 36: Parks, Forests, and Public Property
PART 1004—VEHICLES AND TRAFFIC SAFETY
§ 1004.13 Obstructing traffic.

