Carrier profile · USDOT 426121 · MC-221233 · Updated Jun 13, 2026

Chief School Bus Service Inc

DBA CHIEF

0 power unitsavg 13.6 yrLocal · 1 statesOMAHA, NE56/100

CARRIER INACTIVEMC-221233 INACTIVERATED CONDITIONAL

Safety

Roadside out-of-service rates versus the national benchmark, inspection and crash trends, decoded violation themes, and ELD / hours-of-service integrity — the full safety picture behind the verdict.

Out-of-service rate· 24-mo cumulative · vs national

Vehicle OOS 54.5%24-mo cumulative

050%nat'l 22.26%

Driver OOS —24-mo cumulative

030%

Every inspection in the window pooled — 11 vehicle and 0 driver inspections over 24 months.

Vehicle OOS rate· vehicle OOS · vehicle-level inspections · 6-month trailing

37.0% · latest 6-mo window▲ Rising

Share of vehicle-level roadside inspections in each trailing six-month window that resulted in a vehicle out-of-service order. Trending up 3.7 pts across the window. The national vehicle benchmark uses the same metric and is shown on the chart.

Roadside inspection history· 24 charted calendar months · vehicle / driver level · any-OOS overlay

11 inspections in the charted months · busiest month Mar '25 · 8

Vehicle-levelDriver-levelAny OOS

Monthly FMCSA roadside inspections across the 24 charted calendar months. Bars show level-qualified vehicle and driver populations; one inspection can qualify for both. The line shows inspections with any out-of-service result.

BASIC categories· CSA SMS · Aug 2026

Unsafe Driving

0violations

clean · per-BASIC

Hours-of-Service

0violations

clean · per-BASIC

Driver Fitness

0violations

clean · per-BASIC

Controlled Substances

0violations

clean · per-BASIC

77%

Vehicle Maintenance

Vektor peer est.

Percentile = standing among same-exposure peers (higher = worse). FMCSA publishes percentiles for only some carriers (shown official); elsewhere we show a Vektor peer-percentile estimate, or the absolute SMS measure when there are too few inspections to rank.

Violation themes· decoded · grouped by BASIC

What this carrier actually gets cited for — FMCSA violation codes decoded into plain English, ranked by frequency.

396.5 Oil and/or grease leakVehicle Maintenance9 · 2 OOS
396.3 Inspection / repair / maintenance not performedVehicle Maintenance8 · 3 OOS
393.62 Parts & accessories (vehicle condition)Vehicle Maintenance5 · 4 OOS
393.209 Parts & accessories (vehicle condition)Vehicle Maintenance5 · 0 OOS
393.9 Inoperative required lampsVehicle Maintenance5 · 0 OOS
393.45 Brake tubing / hose defectsVehicle Maintenance3 · 1 OOS
393.81 HornVehicle Maintenance3 · 0 OOS
393.83 Exhaust systemVehicle Maintenance3 · 3 OOS
393.95 Emergency equipment (extinguisher, triangles)Vehicle Maintenance2 · 0 OOS
393.207 Parts & accessories (vehicle condition)Vehicle Maintenance2 · 2 OOS

ELD & hours-of-service

No hours-of-service or ELD violations on record across 32 inspections — a clean logging history.

Crash history· 41 total · 1 in 24 mo

Total crashes

In last 24 mo

Fatal

Injury

Year	Crashes	Fatal	Injury	Tow
2025	1	0	0	1
2024	2	0	2	2
2023	1	0	1	0
2022	2	0	1	2
2021	2	0	1	1
2019	5	1	1	5
2018	4	0	1	4
2017	1	0	1	1
2015	2	0	1	2
2013	3	0	0	3
2012	1	0	0	1
2011	1	0	1	0
2009	2	0	2	2
2007	2	0	1	2
2003	2	0	1	2
1998	1	0	0	1
1997	4	0	1	3
1996	1	0	0	1
1995	1	0	0	1
1994	1	0	0	1
1993	2	0	0	1

Date	State	Fatalities	Injuries	Tow-away
Apr 22, 2025	NE	0	0	Yes
Apr 11, 2024	NE	0	1	Yes
Jan 16, 2024	NE	0	2	Yes
Feb 17, 2023	NE	0	1	No
Aug 19, 2022	NE	0	0	Yes
Mar 14, 2022	NE	0	2	Yes
Nov 10, 2021	NE	0	2	No
Sep 16, 2021	NE	0	0	Yes
Nov 7, 2019	NE	0	1	Yes
Oct 23, 2019	NE	0	0	Yes
Jun 17, 2019	NE	1	0	Yes
May 3, 2019	NE	0	0	Yes
Apr 12, 2019	NE	0	0	Yes
Aug 30, 2018	NE	0	0	Yes
Aug 12, 2018	NE	0	0	Yes
Feb 26, 2018	NE	0	0	Yes
Jan 17, 2018	NE	0	1	Yes
Nov 30, 2017	NE	0	3	Yes
Oct 3, 2015	NE	0	1	Yes
Apr 21, 2015	NE	0	0	Yes
Nov 16, 2013	NE	0	0	Yes
Apr 11, 2013	NE	0	0	Yes
Mar 21, 2013	NE	0	0	Yes
Jan 24, 2012	NE	0	0	Yes
May 4, 2011	NE	0	1	No