127.311—Motor vehicles.
(a)
The operator shall designate and mark parking spaces that—
(1)
Do not block fire lanes;
(2)
Do not impede any exits;
(3)
Are not located in any impounding space; and
(4)
Are not within 15 meters (49.2 feet) of any storage tank or loading flange.
(b)
During transfer operations, no person may—
(1)
Stop or park a motor vehicle in a space that is not designated a parking space; or
(2)
Refuel any motor vehicle.