What happens when you're cited for operating without proper CDL restrictions? Direct answers backed by 13M+ inspection records.
Ranks #1,931 of 3,146 FMCSR codes by citation frequency • OOS rate of 100.0% is above the FMCSR-wide average of 33.3%.
No passenger vehicle endorsement on CDL
Direct answers grounded in TruckCodex inspection data
Yes. Across our inspection records, 383.93B2 citations result in an out-of-service placement 100% of the time—all 14 all-time citations in our database were accompanied by an OOS order. This is dramatically higher than the 31.4% average OOS rate across all FMCSR codes. When an inspector finds you operating a CMV in violation of a restriction on your CDL (such as air brakes or manual transmission), the truck comes off the road immediately.
This violation carries a severity weight of 6 points in the FMCSA's CSA system. That means each citation adds 6 points to your driving record. During a 30-day rolling window, points are multiplied by your frequency—so if you accumulate multiple citations in 30 days, the impact compounds. A single 383.93B2 citation alone is serious; repeated violations within a month create escalating pressure on your safety profile.
First: Stop operating that vehicle immediately—it's OOS and cannot move. Second: Review your CDL restrictions and verify which one was violated (air brakes, manual transmission, etc.). Third: Contact your carrier's safety manager or DOT department to file a corrective action plan. Fourth: Schedule a medical evaluation if applicable, since our data shows physical qualification violations (391.41A) often appear alongside 383.93B2 citations. Fifth: Do not resume operation until the restriction is formally removed by your state's licensing authority.
Yes. The 100% OOS rate for 383.93B2 is severe compared to peer violations in the Driver Fitness category. For example, 391.41(a) (general physical qualification) has a 16.2% OOS rate, and 391.41A-MCPC has 14.4%. Even codes with high OOS rates like 383.23A2-LCDLN (operating without a valid CDL) at 98.6% are close, but 383.93B2's perfect OOS rate shows inspectors treat CDL restriction violations as automatic out-of-service findings with no discretion.
You can contest any citation through the FMCSA's DataQs system within 90 days of issuance. However, 383.93B2 is a straightforward compliance finding—did you hold the proper restriction on your CDL at the time of operation? If your license shows no air brake restriction but you were driving an air brake vehicle, the facts support the citation. DataQs works best for documentation errors (wrong date, wrong vehicle VIN, incorrect inspector notes). If the core fact—your restriction status—is accurate, the citation will likely stand.
Over the last 180 days, our inspection records show Illinois leads with 4 citations, all resulting in out-of-service placements (100% OOS rate). The low national citation volume—only 2 citations in the last 90 days across all states—means 383.93B2 is not a widespread problem. However, when it does occur, it is enforced uniformly: every citation results in an immediate OOS order, regardless of location.
Extremely urgent. Your truck is immediately out of service and cannot operate. Our 12-month trend shows a spike of 5 citations in July 2025, then 1–2 citations per month thereafter, indicating sporadic but consistent enforcement. Because the violation is tied to your CDL itself, the fix is not a repair—it requires a state DMV action to add or remove the restriction from your license. Contact your state's licensing authority immediately to confirm your restriction status and initiate any required medical exams or training.
Both. The FMCSA includes driver fitness violations under two CSA BASICs: one tracks your individual safety history as a driver, the other tracks your carrier's hiring and management practices. A 383.93B2 citation adds 6 severity points to your personal record and contributes to your carrier's Driver Fitness metric, which regulators use when auditing the company. Your carrier may face further scrutiny if this reflects a pattern of hiring drivers with incompatible restrictions.
Where 383.93B2 is most commonly cited (last 180 days)
Other violations commonly found on the same inspection (last 90 days)
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.