393.22B-LPL — Lighting - Prohibited combination of lamps

FMCSA violation code under Vehicle Maintenance. 408 events recorded in roadside inspections. Severity weight: N/A.

Violation code 393.22B-LPL is a Federal Motor Carrier Safety Regulations citation issued under 49 CFR 393.22. It tracks a specific compliance failure recorded against motor carriers and drivers during FMCSA roadside inspections. The code rolls up into the FMCSA Safety Measurement System (SMS) Vehicle Maintenance BASIC, which feeds the carrier's percentile ranking and prioritization for FMCSA interventions. It applies to interstate motor carriers, drivers, and the commercial motor vehicles they operate; intrastate operators are subject when their state has adopted Part 350 of the FMCSR by reference. 408 citations have been recorded against this code in the FMCSA inspection record.

Severity Weight
N/A
OOS Eligible
No
BASIC Category
Vehicle Maintenance
Total Events
408
Code:
393.22B-LPL
Code System:
FMCSR
BASIC Category:
Vehicle Maintenance
OOS Eligible:
No
Severity Weight:
N/A
Total Events:
408
Carriers Cited:
341

Ranks #1,009 of 3,146 FMCSR codes by citation frequency • OOS rate of 0.2% is below the FMCSR-wide average of 33.2%.

Violation Description

Lighting - Prohibited combination of lamps

About This Violation Code

Code 393.22B-LPL falls under the Vehicle Maintenance BASIC category in FMCSA's Safety Measurement System (SMS).

When this violation is cited during a roadside inspection, it contributes to the carrier's Vehicle Maintenance BASIC score. Carriers with high BASIC percentiles may be prioritized for FMCSA interventions including warning letters, investigations, or compliance reviews.

Regulatory Reference

Federal Motor Carrier Safety Regulations

This violation references 49 CFR 393.22B in the Federal Motor Carrier Safety Regulations.

Events (all time)
408
OOS Events
1
OOS Rate
0.2%
Top State (180d)
California
41 events

Top Enforcing States

Where 393.22B-LPL is most commonly cited (last 180 days)

1. California
41
OOS 0.0%
2. Pennsylvania
15
OOS 0.0%
3. Missouri
6
OOS 0.0%
4. Florida
3
OOS 0.0%
5. Michigan
2
OOS 0.0%
6. Kentucky
2
OOS 0.0%
7. Wisconsin
2
OOS 0.0%
8. North Dakota
2
OOS 0.0%
9. Massachusetts
2
OOS 0.0%
10. Tennessee
1
OOS 0.0%
11. US
1
OOS 0.0%
12. West Virginia
1
OOS 0.0%
13. Arizona
1
OOS 0.0%
14. Wyoming
1
OOS 0.0%
15. Guam
1
OOS 0.0%

Click a state to see roadside inspection activity, top stations, and carrier profiles in that jurisdiction.

Citation Trend (12 months)

Monthly count of 393.22B-LPL citations. Red bars mark months with OOS-triggering citations.

16
2025-07
11
2025-08
14
2025-09
22
2025-10
14
2025-11
19
2025-12
18
2026-01
14
2026-02
29
2026-03
3
2026-04
13
2026-05
14
2026-06
6
2026-07

Most Active Stations

Inspection stations citing 393.22B-LPL most often (last 180 days)

1. DESERT HILLS IF
7
OOS 0.0%
2. WENTZVILLE MO
5
OOS 0.0%
3. CALEXICO IF
4
OOS 0.0%
4. GILROY IF
2
OOS 0.0%
5. PA
2
OOS 0.0%
6. NORTH HIGHLANS
2
OOS 0.0%
7. HARRISBURG CITY PA
2
OOS 0.0%
8. DONNER PASS IF
1
OOS 0.0%
9. GRAPEVINE IF
1
OOS 0.0%
10. COTTONWOOD IF
1
OOS 0.0%

Often Cited Together

Other violations commonly found on the same inspection (last 90 days)

Citation patterns suggest related root causes (e.g., HOS violations paired with logbook errors).

Top Carriers Cited

Ranked by frequency • 341 carriers total • Page 1 of 14

# Carrier USDOT # Violations
#1 SAN JUAN UNIFIED SCHOOL DISTRICT 2648318 6
#2 KILROYS TOWING INC 3127684 3
#3 CARMEL TOWING AND GARAGE INC 2647291 3
#4 UNITED TOWING 2715223 3
#5 CARVANA LOGISTICS LLC 3713276 3
#6 VERA BROTHERS TRUCKING INC 3920047 2
#7 EAST NICOLAUS HIGH SCHOOL DISTRICT 2604823 2
#8 ILL PUSHER INC 3339609 2
#9 BAOMA INC 3399541 2
#10 EVANS DELIVERY COMPANY INC 38111 2
#11 JOY A LUTHER 2672916 2
#12 RDH TRUCKING INC 1106515 2
#13 LL BROTHERS TRUCKING LLC 4131141 2
#14 GHANEE EXPEDITE LLC 2724190 2
#15 ENVIROQUIP LLC 2471036 2
#16 MEN VAN VO 2171983 2
#17 MONTES WORLD ENTERPRISE LLC 4163086 2
#18 ROVE TRANSPORT & AGGREGATES LLC 4023809 2
#19 SPR TRUCKING INC 719659 2
#20 PARTY ON TRANSPORTATION LLC 3803949 2
#21 P D P INV INC 2742317 2
#22 MONCADA TRUCKING LLC 2651271 2
#23 CASELLA WASTE MANAGEMENT OF MA INC 894965 2
#24 HELBER ORLANDO PEREZ HERNANDEZ 3249125 2
#25 INTERNATIONAL PAPER COMPANY 297334 1

Recent Inspections

Latest inspections where 393.22B-LPL was cited • 408 total events • Page 1 of 17

Date Report # State Level OOS
88356012 CA Level 2 No
88354477 CA Level 1 No
88338986 PA Level 3 No
88334122 CA Level 2 No
88326165 MI Level 2 No
88302933 CA Level 2 No
88278235 CA Level 2 No
88240905 CA Level 2 No
88207175 ME Level 2 No
88201235 CA Level 2 No
88197138 MD Level 1 No
88184493 NV Level 2 No
88188812 CA Level 1 No
88149498 PA Level 1 No
88148870 CA Level 2 No
88093935 CA Level 2 No
88083317 PA Level 2 No
88065361 CA Level 3 No
88038684 CA Level 1 No
88021507 WY Level 2 No
88000395 PA Level 2 No
87977744 ND Level 2 No
87964751 CA Level 1 No
87935277 MI Level 2 No
87914011 KY Level 2 No

How to comply with violation code 393.22B-LPL

  1. Locate the regulation in the eCFR. Open https://www.ecfr.gov/current/title-49/section-393.22 on eCFR.gov to read the legal text the citation is written against. The eCFR is the National Archives' continuously updated electronic Code of Federal Regulations and is the canonical reference for any FMCSR section.
  2. Determine if your operation is subject. Confirm whether your operation is interstate (always subject to the FMCSR) or intrastate (subject when your state has adopted 49 CFR Part 350 by reference; most have). Intrastate operators in non-adopting states may be subject to a state analog instead of the federal rule.
  3. Identify the documented requirement. Read the requirement carefully: "Lighting - Prohibited combination of lamps" Map it to the specific equipment, driver document, or operational practice it covers.
  4. Inspect or maintain to standard. Build a recurring inspection, training, or filing routine that catches this gap before a roadside inspector does. Pre-trip checks, scheduled preventive maintenance, driver-qualification file audits, and supervisor reviews are the standard places this kind of issue is caught early.
  5. Document compliance to demonstrate it on review. Keep a dated, signed record of each inspection, repair, training session, or filing tied to 393.22B-LPL. During an FMCSA compliance review or a customer onboarding audit, the documentation is what proves the program runs — undocumented compliance is indistinguishable from non-compliance to the auditor.

Frequently asked questions about 393.22B-LPL

What is FMCSA violation code 393.22B-LPL?
Lighting - Prohibited combination of lamps The citation appears as code 393.22B-LPL on roadside inspection reports issued by the Federal Motor Carrier Safety Administration and rolls up into the Vehicle Maintenance BASIC.
Is 393.22B-LPL an out-of-service violation?
No. Code 393.22B-LPL is not Out-of-Service eligible. A citation under this code is recorded on the inspection report and counts toward the carrier's BASIC percentile, but it does not by itself trigger an Out-of-Service order at the roadside.
What's the severity weight of 393.22B-LPL?
FMCSA hasn't published a severity weight for 393.22B-LPL in the snapshot we mirror. Severity weights run from 1 to 10 on FMCSA's published violation table; codes without a weight are typically administrative or duplicative of weighted codes that already feed the BASIC percentile.
How many inspections have cited 393.22B-LPL?
408 inspections in our FMCSA mirror cite 393.22B-LPL, of which 1 (0.2%) resulted in Out-of-Service orders. The Recent Inspections table on this page lists the most recent citations with date, state, level, and OOS flag — click any row to see the full inspection report.
Which BASIC category is 393.22B-LPL in?
393.22B-LPL rolls up into the Vehicle Maintenance BASIC of FMCSA's Safety Measurement System. The BASIC determines how the citation feeds the carrier's percentile ranking — carriers with high percentiles in a BASIC are prioritized for FMCSA interventions including warning letters, focused investigations, and full compliance reviews.
What does a carrier do to fix 393.22B-LPL?
Resolving a 393.22B-LPL citation has two parts: (1) correct the underlying condition immediately — repair the equipment defect, retrain the driver, file the missing form, or update the maintenance record — and (2) document the correction in the carrier's compliance file, ideally with date, time, and the name of the person who performed the work. Carriers that believe the citation was recorded in error can file a Request for Data Review through the FMCSA DataQs system within 24 months of the inspection date.
Where can I find related violation codes?
The "Often Cited Together" panel on this page lists violations frequently appearing on the same inspection as 393.22B-LPL — these usually share a root cause (for example, an HOS violation paired with a logbook error). The All Violation Codes index links to every code in the system, and the BASIC category page lists every code in Vehicle Maintenance.
Where can I find the full text of 393.22B-LPL?
The full regulatory text is published on eCFR.gov at 49 CFR 393.22. The eCFR is the official, continuously updated electronic Code of Federal Regulations maintained by the National Archives. The TruckCodex page mirrors enforcement data; the eCFR has the legal text the citation is written against.

About FMCSA violation codes

Every violation found during an FMCSA roadside inspection is recorded under a code drawn from the Federal Motor Carrier Safety Regulations — the codified safety rules motor carriers, drivers, and commercial motor vehicles must comply with in interstate commerce. Codes roll up into one of seven Behavior Analysis and Safety Improvement Categories (BASICs): Unsafe Driving, Hours-of-Service, Driver Fitness, Controlled Substances/Alcohol, Vehicle Maintenance, Hazardous Materials Compliance, and Crash Indicator. Each code carries a published severity weight (1–10) and an Out-of-Service eligibility flag.

Citations counted in the FMCSA Safety Measurement System (SMS) feed a 24-month rolling percentile rank for every motor carrier. Recent citations weigh more heavily than older ones — FMCSA applies a 3× multiplier to events 0–6 months old, 2× for 6–12 months, and 1× for 12–24 months. Carriers above the published intervention threshold for a given BASIC are prioritized for warning letters, focused investigations, and full compliance reviews.

TruckCodex mirrors the FMCSA Motor Carrier Management Information System (MCMIS) and the published violation dictionary on a daily refresh cycle. We do not author or modify violation records — every count, severity weight, and OOS flag on this page reflects what the FMCSA has on file. For real-time confirmation immediately before an enforcement decision, click through to the FMCSA Violations Search link above. Carriers who believe a citation was recorded in error can file a Request for Data Review through the FMCSA DataQs system.

Data sources & freshness

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.

Refreshed daily.

Vehicle recall campaigns, defect investigations, and consumer safety complaints (SCRS).

Refreshed daily.
EIA

Retail diesel and gasoline price history and state fuel-tax tables.

Refreshed weekly.

Cross-border carrier registry and Canadian recall campaigns where applicable.

Refreshed weekly.

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.