What 393.124(d) means in plain language
FMCSR 393.124(d) addresses how concrete pipe must be fastened and supported when loaded on a commercial truck. The regulation establishes specific securement requirements—including proper blocking, bracing, or tie-down configuration—to prevent pipe from shifting, rolling, or falling during transit.
This is a cargo control issue. Unlike some maintenance codes that focus on truck components, 393.124(d) is about how you load and secure your freight. If a roadside inspector finds that concrete pipe on your vehicle does not meet the securement standard—whether the tie-downs are insufficient, improperly positioned, or the blocking arrangement is inadequate—you can receive this citation.
What our enforcement data actually shows
Across our 13 million+ inspection records, 393.124(d) is exceptionally rare. All-time, we see only 6 citations for this code. Over the last 12 months, there have been 0 citations, and in the last 90 days, 0 citations as well. This makes 393.124(d) ranked #2357 of 3,036 FMCSR codes by citation volume—placing it in the long tail of enforcement activity.
When this citation does appear in our data, the enforcement consequence is severe. All 6 all-time citations resulted in the vehicle being placed out of service, yielding a 100.0% out-of-service rate. For context, the all-FMCSR average OOS rate is 31.4%, meaning inspectors treat concrete pipe securement violations far more seriously than the typical maintenance or equipment citation. This extreme enforcement pattern suggests that when inspectors flag this code, they identify a genuine safety risk warranting immediate removal from service.
Who gets cited most
Our inspection records do not include enough geographic distribution or carrier-specific detail to reliably name the top states for this violation. However, we can identify carriers cited all-time: MEGA TRUCKING LLC (USDOT 2582238) received 2 citations, while THE QUIKRETE COMPANIES LLC (USDOT 51938), J B HUNT TRANSPORT INC (USDOT 80806), E AND M TRUCKING OF TURKEY INC (USDOT 3114176), and AMA LOGISTICS LLC (USDOT 3431773) each received 1 citation. The prevalence of Quikrete—a major concrete products manufacturer—in the citation data makes logical sense given their product line.
How severe is this compared to similar codes
Within the Vehicle Maintenance category, 393.124(d) sits at the extreme end of enforcement severity. Compare it to peer codes:
- 393.9(a) — Inoperable required lamps: 660,737 citations with a 15.4% OOS rate. This is the most-cited peer code, yet only 15.4% trigger out-of-service status.
- 396.3(a)(1) — Inspection/repair/maintenance - general: 236,919 citations with a 45.3% OOS rate. More common than 393.124(d), but still placed out of service in less than half of instances.
- 393.47E — Slack adjuster defective: 180,363 citations with a 0.0% OOS rate. Despite thousands of citations, braking defects rarely trigger immediate removal from service.
Your 100.0% OOS rate on 393.124(d) is dramatically higher than any of these peer violations. This underscores that inspectors and enforcement authorities view concrete pipe securement as a critical safety failure—not a minor citation.
How to avoid it
Because this citation is so infrequent, no strong co-occurring code pattern emerges in our data. However, prevention is straightforward and rooted in fundamental cargo securement discipline:
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Inspect all load securement devices before departure. Verify that tie-downs, chains, straps, or cables are not frayed, corroded, or damaged. Check that they are rated for the weight and type of cargo. Do this as part of your pre-trip inspection every single time.
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Confirm blocking and bracing placement. Concrete pipe must not roll, shift sideways, or move forward or backward during braking or acceleration. Before sealing the load, walk the perimeter and physically verify that blocking material (wood, plastic, or metal devices) is wedged firmly under and around the pipe, and that it contacts the truck bed and the cargo simultaneously.
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Double-check load balance and weight distribution. Uneven weight or improper distribution can cause pipe to settle or tip, defeating your securement setup. Use a certified scale or load planning software to confirm the arrangement meets FMCSR standards.
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Understand your vehicle type. Top vehicle makes cited all-time for this code include FONTAINE T (2 citations), FREIGHTLIN, DORS, INTL, PETERBILT, TRAO, and FRHT. If you operate a specialized flatbed or trailer designed for pipe transport, familiarize yourself with manufacturer guidance on securement points and load limits. These vehicles often have specific anchor locations that must be used correctly.
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Use proper tie-down techniques. Concrete pipe is heavy and hard. Ensure that each securement device is tight, that slack is minimal, and that the load cannot move even slightly under road vibration or emergency maneuvers. If using chain, ensure proper grade and working load limit. If using straps, verify they are not over-tightened to the point of crushing the pipe.
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Document your securement. Before leaving the yard or shipper, take a photo of your secured load. This creates a record that you performed a lawful securement and can be valuable if a dispute arises later.
The 100% out-of-service rate for this code is a warning: inspectors will not hesitate to shut you down. A few minutes of careful, deliberate pre-trip securement work prevents a citation, a road delay, and potential cargo damage or safety risk.