Federal parking limits for a hazardous materials vehicle split according to whether the load is Division 1.1, 1.2 or 1.3 explosive material. What does the regulation set for each case?

Explanation

A vehicle containing Division 1.1, 1.2 or 1.3 material must not be parked on or within 5 feet of the traveled portion of a public street or highway, on private property without the knowledge and consent of the person in charge who is aware of the nature of the material, or within 300 feet of a bridge, tunnel, dwelling or place where people work, congregate or assemble, with that third limit excepted for brief periods when the necessities of operation require the vehicle to be parked and make parking elsewhere impracticable; a vehicle containing other hazardous materials must not be parked on or within 5 feet of the traveled portion, with the same brief-period exception. Which limits apply turns entirely on the division, so the first question at a stop is what the load actually is. Note where the exception does and does not sit: it reaches the 300-foot limit and the 5-foot limit for other hazardous materials, not the explosives 5-foot limit or the private-property consent requirement. The wrong options each shuffle the figures or the classes, swapping the two distances, erasing the distinction between the two cases, or reversing which load the stricter rule follows.

Source: 49 CFR 397.7