Direct answers about 393.118D boulder securement citations: OOS rates, CSA points, next steps, and enforcement trends from 13M+ roadside inspections.
Ranks #2,503 of 3,146 FMCSR codes by citation frequency • OOS rate of 100.0% is above the FMCSR-wide average of 33.3%.
Insufficient protection against lateral movement of lumber or building materials
Direct answers grounded in TruckCodex inspection data
Yes—almost certainly. Across our 13 million inspection records, 393.118D has a 100.0% out-of-service rate, meaning every single citation we've recorded resulted in an OOS placement. This is dramatically higher than the 31.4% average across all FMCSR codes. When an inspector cites you for unsecured boulders, expect your truck to be taken out of service until the cargo is properly secured.
A 393.118D citation carries a severity weight of 7 points. The FMCSA applies this as a straight point value in your CSA profile, and these points remain on your record in rolling 30-month and 12-month windows. Combined with the 100.0% OOS rate we see in our data, this violation has real consequences both for your safety rating and your company's metrics.
Yes, it's exceptionally serious. Among peer codes in the Vehicle Maintenance category, 393.118D's 100.0% OOS rate is far above the norm. For comparison, inoperable lamps (393.9) carry a 15.4% OOS rate, and even slack adjuster defects (393.47E) are enforced at 0.0% OOS. Our inspection records show that boulder securement is treated as a critical safety failure, not a minor citation.
Yes, you can file a DataQs Record Dispute Request if you believe the citation is factually inaccurate. Boulder securement is an observable, physical condition—so you'd need to show either that the inspector incorrectly documented the condition or that the boulders were actually in compliance. Submit photos, witness statements, or proof of securement method to FMCSA. Success depends on the evidence; documentation disputes are easier to win than safety failures.
Over the last 180 days, our records show 393.118D citations are heavily concentrated: Illinois has 1 citation with a 100.0% OOS rate. Because the all-time volume is only 4 citations across our entire 13 million record database, this violation is exceptionally rare. When it does occur, however, it's treated as a critical defect every single time.
Immediate. The 100.0% OOS rate means your truck cannot move until it's fixed. Our 90-day trend shows 0 citations recently, but in the 12 months prior we saw spikes: 2 citations in September 2025 and 1 each in June and November—all resulting in OOS placements. There is no grace period or warning stage; fix the securement before you attempt to re-enter service.
Both. FMCSA CSA violations affect the driver's personal safety record and the carrier's SMS profile simultaneously. A 393.118D finding counts toward Vehicle Maintenance BASIC scores for both you and your company. Your carrier will see it in their CSA safety management system, which can impact their insurance rates, customer audits, and your future employment prospects with that or other carriers.
TruckCodex aggregates official public-sector datasets. See the Source registry for dataset-level coverage and the Freshness log for last-import timestamps.
Census, SAFER, SMS, Licensing & Insurance (L&I), roadside inspections, crashes, and authority history.
Vehicle recall campaigns, defect investigations, and consumer safety complaints (SCRS).
Cross-border carrier registry and Canadian recall campaigns where applicable.
TruckCodex is an independent aggregator; it is not affiliated with FMCSA, NHTSA, EIA, or Transport Canada. Always verify compliance-critical information directly with the originating agency.