TruckCodex

390.21(a) — Vehicle marking requirements

FMCSA violation code under General/Admin. 25,872 events recorded in roadside inspections. Severity weight: 3.

Severity Weight
3
OOS Eligible
No
BASIC Category
General/Admin
Total Events
25,872
Code
390.21(a)
Code System
FMCSR
BASIC Category
General/Admin
OOS Eligible
No
Severity Weight
3
Violation Group
Admin
Total Events
25,872
Carriers Cited
17,221

Violation Description

CMV not marked with the legal name or USDOT number of the motor carrier operating it.

About This Violation Code

Code 390.21(a) falls under the General/Admin BASIC category in FMCSA's Safety Measurement System (SMS). It carries a severity weight of 3 (scale 1-10, higher = more severe).

When this violation is cited during a roadside inspection, it contributes to the carrier's General/Admin 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 390.21 in the Federal Motor Carrier Safety Regulations.

View on eCFR.gov →FMCSA Violations Search →
Events (all time)
25,872
OOS Events
3
OOS Rate
0.0%
Top State (180d)
Texas
4,573 events

Top Enforcing States

Where 390.21(a) is most commonly cited (last 180 days)

1.Texas
4,573
OOS 0.0%
2.North Carolina
155
OOS 0.0%
3.New Mexico
20
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 390.21(a) citations. Red bars mark months with OOS-triggering citations.

307
Apr
808
May
770
Jun
876
Jul
864
Aug
827
Sep
952
Oct
805
Nov
872
Dec
799
Jan
968
Feb
872
Mar
27
Apr

Most Active Stations

Inspection stations citing 390.21(a) most often (last 180 days)

1.INDIOS POE
90
OOS 0.0%
2.IH-0820 IN TARRANT CO. (0-34)
66
OOS 0.0%
3.IH-0030 IN DALLAS CO. (32-64)
64
OOS 0.0%
4.IH35 SB SAN MARCOS SCALE
46
OOS 0.0%
5.CAMINO REAL POE
45
OOS 0.0%
6.IH35 SB DEVINE SCALE
41
OOS 0.0%
7.COLUMBIA POE
37
OOS 0.0%
8.US77 RIVIERA SCALE
35
OOS 0.0%
9.US380 DECATUR SCALE
34
OOS 0.0%
10.US-0290 IN HARRIS CO. (706-738
28
OOS 0.0%

Often Cited Together

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

392.2RG1,435 co-occurrences393.91,387 co-occurrences396.17C1,096 co-occurrences393.78492 co-occurrences393.95A476 co-occurrences393.48A422 co-occurrences383.23A2361 co-occurrences393.11358 co-occurrences393.9TS338 co-occurrences393.95F307 co-occurrences

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

Top Carriers Cited

Ranked by frequency • 17,221 carriers total • Page 1 of 689

Top Carriers with 390.21(a) Violations

Showing 25 of 17,221

fmcsa-violations
Top Carriers with 390.21(a) Violations
#CarrierUSDOT# Violations
#1LUCA AUTOTRANSPORTES SA DE CV321045847
#2PETROLIFICOS DE MONTERREY SA DE CV391046424
#3REPUBLIC WASTE SERVICES OF TEXAS LTD77240724
#4DANIEL ARELLANO415921522
#5ACME TRUCK LINE INC5276722
#6AGGREGATE HAULERS I L P102148522
#7MARCOS DE LOS REYES95844318
#8SERVICIO DE TRANSPORTE INTERNACIONAL Y LOCAL SA DE CV55734118
#9ALLIED WASTE SYSTEMS INC23799718
#10AUTOLINEAS PERZA SA DE CV334693918
#11JUAN ANDRES QUINTANA JIMBO315247917
#12HIMA CARRIERS LLC309353317
#13GALINDO TRANSPORT LLC358536317
#14WASTE CONNECTIONS LONE STAR INC84018317
#15GULF WINDS INTERNATIONAL INC69014716
#16TRANSPORTES NARI SA DE CV313010716
#17TRANSPORTES ESPECIALIZADOS ANTONIO GARZA RUIZ SA DE CV73646316
#18STX UNDERGROUND LLC360611916
#19WASTE MANAGEMENT OF TEXAS INC38608316
#20TRANSPORTES Y MAQUINARIA MORO SA DE CV378262716
#21ZARO TRANSPORTATION LLC174174316
#22LIONEL ALEXANDER GARCIA232984316
#23IMPETUS LLC305866415
#24BFI WASTE SERVICES OF TEXAS LP96208515
#25MORENO HOTSHOTS LLC289367715

Recent Inspections

Latest inspections where 390.21(a) was cited • 25,872 total events • Page 1 of 1035

Recent Inspections with 390.21(a)

Showing 25 of 25,872

fmcsa-inspections
Recent Inspections with 390.21(a)
DateReport #StateLevelOOS
Apr 2, 202687488065TXLevel 1No
Apr 2, 202687487562TXLevel 2No
Apr 2, 202687488294TXLevel 2No
Apr 2, 202687488163TXLevel 2No
Apr 2, 202687487438TXLevel 1No
Apr 1, 202687487140TXLevel 2No
Apr 1, 202687487912TXLevel 2No
Apr 1, 202687487058TXLevel 2No
Apr 1, 202687487141TXLevel 2No
Apr 1, 202687487077TXLevel 2No
Apr 1, 202687479881TXLevel 2No
Apr 1, 202687488090TXLevel 2No
Apr 1, 202687487982TXLevel 2No
Apr 1, 202687478710TXLevel 1No
Apr 1, 202687486073NCLevel 1No
Apr 1, 202687487298TXLevel 2No
Apr 1, 202687488359TXLevel 2No
Apr 1, 202687487416TXLevel 2No
Apr 1, 202687487547TXLevel 2No
Apr 1, 202687478901TXLevel 2No
Apr 1, 202687487757TXLevel 2No
Apr 1, 202687487826TXLevel 2No
Apr 1, 202687479589TXLevel 2No
Apr 1, 202687488253TXLevel 2No
Apr 1, 202687478753TXLevel 1No

Data sources & freshness

FMCSA Vehicle Inspections and Violations
Updated 3 months ago
Federal Motor Carrier Safety Regulations (49 CFR)
Unknown freshness

Related records

CategoryAll General/Admin Violations
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IndexAll Violation Codes
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ReferenceFMCSA Roadside Inspections
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