9.5 Route Restrictions, Written Route Plans, and Required Documents
Key Takeaways
- Some states and counties require permits or limit routes for hazardous materials, and it is the driver's job to find out before starting.
- Whenever placarded, avoid heavily populated areas, crowds, tunnels, narrow streets, and alleys, and take another route even if it is inconvenient.
- A driver transporting Division 1.1, 1.2, or 1.3 explosives must have a written route plan and follow it; the carrier prepares it unless the trip starts away from the carrier's terminal.
- An explosives driver must carry the shipping papers, the written emergency instructions, the written route plan, and a copy of FMCSR Part 397, and must sign a receipt for them.
- For placarded radioactive material, the carrier must choose the safest route and show the driver the route plan.
9.5 Route Restrictions, Written Route Plans, and Required Documents
[!IMPORTANT] A separate legal duty from parking and driving. Where you may drive a placarded load is governed by three overlapping layers: state and local permit or route rules, the federal duty in 49 CFR 397.67 to keep away from populated areas and tunnels, and — for explosives and radioactive materials — a written route plan that must physically be in the cab. The Virginia CDL manual treats route restrictions and required documents as their own subsection, and so does the knowledge exam.
Layer 1: State and Local Route and Permit Rules
Some states and counties require permits to transport hazardous materials or hazardous wastes, and they may limit the routes you can use. Local rules about routes and permits change often.
It is your job as the driver to find out whether you need permits or must use special routes, and to have all needed papers before starting.
- If you work for a carrier, ask your dispatcher about route restrictions and permits.
- If you are an independent trucker planning a new route, check with the state agencies in every state you plan to travel through.
- Some localities prohibit hazardous materials through tunnels, over bridges, or on particular roadways. Always check before you start.
Layer 2: The Federal Routing Duty (49 CFR 397.67)
Two rules stack here, and the exam tests both.
First, a motor carrier transporting non-radioactive hazardous materials must comply with any NRHM routing designation a state or Indian tribe has adopted. Those designations are published in the FMCSA National Hazardous Materials Route Registry. Virginia's entries in that registry are its bridge-tunnel facility restrictions, covered in Chapter 14 — not a blanket beltway mandate.
Second, where no routing designation applies, 49 CFR 397.67(b) still requires the carrier to operate over routes that do not go through or near heavily populated areas, places where crowds are assembled, tunnels, narrow streets, or alleys, unless the carrier determines that:
- There is no practicable alternative;
- A reasonable deviation is needed to reach terminals, loading or unloading points, food, fuel, repairs, rest, or a safe haven; or
- A deviation is required by emergency conditions, such as an established detour or a law enforcement officer directing an alternate route.
[!WARNING] Operating convenience is not a basis for deciding it is impracticable to follow the routing rule (49 CFR 397.67(c)). "It was twenty minutes faster" is not a defense.
The Virginia CDL manual states the same duty in driver language: whenever placarded, avoid heavily populated areas, crowds, tunnels, narrow streets, and alleys — take other routes even if inconvenient, unless there is no other way. And: never drive a placarded vehicle near open fires unless you can safely pass without stopping.
Layer 3: The Written Route Plan for Explosives
This is the rule candidates most often miss, because it creates a document that must be in the cab.
If you are transporting Division 1.1, 1.2, or 1.3 explosives, you must have a written route plan and follow it.
| Question | Answer |
|---|---|
| Who prepares it? | The carrier prepares the route plan in advance and gives the driver a copy. |
| When may the driver prepare it? | Only when the driver picks up the explosives at a location other than the carrier's terminal — then the driver may write out the plan in advance as the carrier's agent. |
| Where must it be? | A copy must be with you while you are transporting the explosives. |
| Who may receive the shipment? | Deliver explosives only to authorized persons, or leave them in locked rooms designed for explosives storage. |
Radioactive Materials Route Planning
For placarded radioactive materials, the carrier must choose the safest route. After choosing it, the carrier must tell the driver about the radioactive materials and show the driver the route plan.
The Explosives Document Set
A carrier transporting Division 1.1, 1.2, or 1.3 explosives must give each driver:
- A copy of the Federal Motor Carrier Safety Regulations (FMCSR), Part 397; and
- Written instructions on what to do if delayed or in an accident, which must include:
- The names and telephone numbers of people to contact, including carrier agents or shippers;
- The nature of the explosives being transported; and
- The precautions to take in emergencies such as fires, accidents, or leaks.
Drivers must sign a receipt for these documents.
You must be familiar with — and have in your possession while driving — all four of these:
+-----------------------------------------------------------------------------------+
| The Explosives Driver's Four Required Documents (Division 1.1/1.2/1.3) |
+-----------------------------------------------------------------------------------+
| 1. Shipping papers |
| 2. Written emergency instructions (delay / accident procedures) |
| 3. Written route plan |
| 4. A copy of FMCSR, Part 397 |
+-----------------------------------------------------------------------------------+
Commercial Driving Scenario: Explosives from Radford to a Quarry near Bristol
Roadside Case Study: A driver is dispatched to pick up Division 1.1 explosives from a magazine that is not the carrier's terminal, for delivery to a quarry in southwest Virginia. The dispatcher says over the phone: "Just run 81 south, you know the way."
What the driver must do before rolling:
- Because the pickup is at a location other than the carrier's terminal, the driver writes out the route plan in advance as the carrier's agent and keeps a copy in the cab.
- The driver confirms possession of the shipping papers, the carrier's written emergency instructions, and a copy of FMCSR Part 397, and signs the receipt for the documents.
- The driver plans the route to avoid heavily populated areas, crowds, tunnels, narrow streets, and alleys, and checks whether any locality on the route requires a permit.
- At delivery, the driver hands the explosives only to an authorized person — not to whoever happens to be standing at the gate.
A verbal route from a dispatcher is not a route plan. The absence of the written plan is itself the violation, before the truck ever moves.
Common Exam Traps & Pitfalls
- Trap: "The carrier always writes the route plan."
- The Legal Reality: Normally yes — but when the trip begins somewhere other than the carrier's terminal, the driver may prepare the written plan as the carrier's agent. The plan still has to exist, in writing, before the trip.
- Trap: "Avoiding populated areas is a suggestion."
- The Legal Reality: It is a rule with three narrow exceptions (no practicable alternative, a reasonable deviation for terminals/fuel/rest/safe haven, or emergency conditions). Operating convenience is expressly not one of them.
- Trap: "A route plan is needed for every placarded load."
- The Legal Reality: The written route plan requirement attaches to Division 1.1, 1.2, and 1.3 explosives. For placarded radioactive material the carrier must choose the safest route and show the driver the plan. Other placarded loads follow the general 397.67(b) routing duty and any state or local designations.
A driver is transporting Division 1.1 explosives. What routing document is legally required to be in the vehicle?
Under 49 CFR 397.67(b), which of the following is NOT an acceptable reason for a placarded vehicle to travel through a heavily populated area?
Which set of documents must a carrier give to a driver transporting Division 1.1, 1.2, or 1.3 explosives?
What must a carrier do before transporting placarded radioactive materials?