Prevention FAQ — FMCSR 397.67(b) Hazmat Routing (Radioactive)

Inspectors verify that your radioactive materials shipment followed the DOT-prescribed routing. They examine your route plan against the shipping papers, consignee location, and any state-level restrictions. Across our 13 million inspection records, this code ranks #2651 by citation frequency—relatively uncommon, which means inspectors flag it primarily when routing deviation is clear and documented. Expect them to cross-check:

• Shipping papers match the actual route taken
• No deviations through restricted or high-population corridors
• Compliance with any state routing rules (some states impose tighter controls than federal minimums)
• Driver awareness of the prescribed route before departure

Because only 2 citations exist in our all-time database, violations typically occur when a driver improvises a route or lacks clear routing documentation.

Build a radioactive materials routing checklist covering these elements:

Before dispatch:

• Verify the DOT-prescribed route is documented on the bill of lading or shipping papers
• Confirm driver has received and signed off on the routing instructions
• Flag any state-specific routing restrictions (some states require permits or mandate certain corridors)
• Cross-check destination coordinates against the approved route

Driver pre-trip sign-off:

• Driver confirms receipt of routing instructions in writing
• Driver acknowledges understanding of restricted areas (schools, hospitals, downtown cores if applicable)
• Driver certifies GPS or map system reflects the prescribed route

Vehicle readiness:

• Ensure radioactive placarding is intact and visible
• Confirm emergency response information is accessible

Documenting this checklist creates a clear audit trail and gives drivers no ambiguity about which route is authorized.

Drivers must carry originals or certified copies of:

• Shipping papers clearly showing the prescribed route
• DOT Form 5800.1 (Notice to Consignee) if applicable
• Routing instructions signed by the shipper or carrier dispatch, specifying approved corridors and waypoints
• State-specific permits if the shipment crosses regulated states
• Emergency response information (CHEMTREC or equivalent contact)

Fleets should retain:

• Signed driver routing acknowledgments (proof driver reviewed the route)
• Dispatch notes showing the authorized route was communicated
• GPS logs or trip plans showing actual route taken (compare to prescribed route post-delivery)
• Any state routing restriction bulletins in effect at time of shipment

This documentation set answers an inspector's core question: Did the carrier establish and communicate a prescribed route, and did the driver follow it? Our inspection data shows that the 2 citations in our system likely stem from missing or unclear routing documentation.

Although 397.67(b) has only 2 citations in our 13M+ record database, we can infer systemic risks by examining peer hazmat codes in the same regulatory category. General hazmat loading/unloading violations (177.834A-HMC, cited 3,954 times at 99.2% OOS rate, and 177.834(a), cited 3,839 times at 97.9% OOS rate) co-occur frequently with routing deficiencies. This pattern suggests:

Root cause #1: Weak dispatch procedures. If loading/unloading is uncontrolled, routing instructions are often absent or unclear. Carriers with poor hazmat loading protocols also lack rigorous pre-dispatch routing verification.

Root cause #2: Driver communication gaps. Placarding violations (172.516(c)(6) cited 1,796 times; 172.502(a)(1) cited 1,820 times) appear alongside routing issues because drivers don't receive full shipment documentation before departure. A driver missing placard details likely also lacks clear routing.

Root cause #3: Incomplete shipping papers. Movement of damaged hazmat packages (177.823(a), 1,829 citations) often co-occurs with routing oversights—carriers handling non-standard shipments may skip routing verification steps.

Tighten dispatch checklists and require driver sign-off on all routing before vehicle leaves the facility.

If a vehicle is cited for routing violations, the defect is procedural, not mechanical. Verification focuses on routing infrastructure:

Dispatch system audit:

• Review the dispatch software or paper system used for that shipment. Did it capture the prescribed route?
• Confirm GPS or mapping tools are loaded with DOT routing databases (if available in your region)
• Test routing instructions with a sample radioactive origin-destination pair; ensure output matches federal requirements

Driver competency check:

• Interview the cited driver to understand why the prescribed route was not followed
• Confirm driver has current hazmat endorsement and routing-specific training
• Have driver demonstrate how they access routing instructions (phone, printed, GPS)

Documentation recovery:

• Retrieve shipping papers and dispatch notes from the cited trip
• If routing instructions are missing, reconstruct what the prescribed route should have been
• Identify the gap: Was the route not prescribed, or was it prescribed but not communicated?

Before returning to service:

• Require signed driver acknowledgment that routing instructions were reviewed and understood
• Add a post-dispatch photo of routing documents in the cab

This verification ensures the same gap doesn't occur on the next radioactive shipment.

After a 397.67(b) citation, conduct a structured debrief:

Immediate (within 48 hours):

• Interview the driver without accusation; ask what route was planned, what was communicated, and why any deviation occurred
• Pull the shipping papers and dispatch records from that specific trip
• Confirm the prescribed route was documented by the shipper

Root-cause analysis (within 1 week):

• Map the prescribed route vs. the actual route taken (use GPS data or driver testimony)
• Identify the decision point where deviation occurred
• Determine if the driver lacked routing instructions, misunderstood them, or chose a different route
• Check if dispatch provided routing at all

System improvements:

• If routing wasn't documented in shipping papers, contact the shipper and implement a requirement that all radioactive shipments include a written DOT-compliant route
• If routing was documented but not communicated to the driver, add a pre-dispatch checklist item and require driver sign-off
• If the driver deviated knowingly, address training or discipline

Follow-up within 30 days:

• Retrain all drivers on radioactive routing procedures
• Audit your next 5 radioactive shipments to confirm routing documentation is present and communicated

Our inspection records show only 2 all-time citations, which means this issue is rare—but when it occurs, it reflects a breakdown in pre-dispatch communication or documentation.

A 397.67(b) citation carries a CSA severity weight of 9, which is moderate on the federal scale. However, it does not trigger an out-of-service order (0.0% OOS rate in our data, compared to the all-FMCSR average of 31.4%). This means the citation scores as a violation but does not immediately remove the vehicle from service.

In CSA terms, routing violations for hazardous materials fall under the Hazardous Materials BASIC rather than Vehicle Maintenance. However, the Vehicle Maintenance BASIC can be indirectly affected if the routing failure is tied to equipment readiness—for example, if a vehicle was cited for routing a radioactive shipment via an unprescribed route because the vehicle's GPS or communications equipment failed and the driver improvised.

To protect your CSA metrics:

• Prevent citations by enforcing routing documentation and driver sign-off
• If cited, address the root cause (dispatch, training, or equipment) so the same violation does not recur
• Monitor your Hazardous Materials BASIC score over the following 3 months; one citation is unlikely to trigger intervention, but a pattern of hazmat violations will

Given the extremely low citation volume (2 all-time, 0 in the last 12 months and 0 in the last 90 days), your main CSA risk is preventable through basic dispatch discipline.

Conduct hazmat-specific training covering:

Routing requirements (core focus):

• DOT routing rules for Class 7 (radioactive) materials
• How to read shipping papers and identify the prescribed route
• Consequences of deviating from the prescribed route (safety, legal, CSA)
• When and how to contact dispatch if the prescribed route is unclear or impossible (traffic, weather)

Placarding and documentation:

• Recognize radioactive placards (black and yellow trefoil)
• Verify placard placement and condition before departure
• Confirm shipping papers are aboard and accessible
• Know what emergency response information must be in the cab (CHEMTREC)

Decision-making and communication:

• Drivers should never improvise a route; if the prescribed route is blocked, call dispatch before proceeding
• Explain why routing is regulated: radioactive materials pose unique risks if transported through densely populated areas
• Teach drivers to verify GPS or mapping against the shipping papers (GPS defaults are not always DOT-compliant for hazmat)

Practical skills:

• Role-play: Driver receives a shipment; walk through reading the shipping papers, identifying the route, and confirming it in the cab
• Show examples of ambiguous or missing routing instructions and practice asking dispatch for clarification

Include this training in your new-hire hazmat endorsement preparation and as annual refresher for drivers on your radioactive roster.

File a DataQs challenge if you believe the citation is factually incorrect or issued in violation of FMCSR procedure. Specific grounds for challenge include:

The citation is factually unsupported:

• You have shipping papers and dispatch records proving a DOT-prescribed route was communicated to the driver
• You have GPS or driver logs proving the vehicle followed the prescribed route
• The inspector did not compare the actual route against the prescribed route documented on the shipping papers

The citation misapplies the regulation:

• The inspector cited a routing deviation that the shipper explicitly approved or that DOT regulations do not prohibit
• The prescribed route was not clearly documented by the shipper, making compliance impossible

Procedural error:

• The inspector did not provide the driver or carrier a reasonable opportunity to explain the route taken
• The inspection report does not cite specific route deviations or reference shipping documents

Before filing a DataQs challenge:

• Retrieve all shipping papers, dispatch records, and GPS data from the cited trip
• Confirm what the DOT-prescribed route should have been
• Document what route was actually communicated to the driver and what route the vehicle took
• If your evidence shows the vehicle followed the prescribed route or that no prescribed route was documented, submit a challenge with that evidence

Given that only 2 citations exist in our 13M+ database, a citation is rare—verify your evidence is airtight before challenging.

Audit frequency should balance risk with operational reality. Our inspection records show 0 citations in the last 90 days and 0 in the last 12 months (2 all-time in a 13M+ record database), which indicates this violation is extremely uncommon—but when it occurs, it reflects a specific procedural gap.

Recommended audit schedule:

Monthly (or per shipment, if fewer than monthly):

• Spot-check your radioactive shipment documentation: verify shipping papers include a DOT-prescribed route and that dispatch records confirm the driver received and acknowledged it
• Sample 1 radioactive shipment from the month; pull GPS data and confirm actual route matches prescribed route

Quarterly:

• Audit your last 10 radioactive shipments; for each, confirm routing instructions are present, communicated, and followed
• Review dispatcher notes and driver sign-offs for completeness
• Identify any patterns of missing routing documentation

Annually:

• Retrain all hazmat drivers on radioactive routing
• Review your routing procedures (dispatch system, driver communication, documentation retention)
• Update your pre-trip checklist if new state restrictions apply

Why this cadence? The zero 90-day and zero 12-month citation counts indicate your peers are compliant or violations are caught before inspection. A simple monthly documentation check and quarterly compliance spot-check will catch routing gaps before they become citations. If you handle fewer than 5 radioactive shipments per year, audit each one individually rather than sampling.