Carrier profile · USDOT 1517935 · MC-689093 · Updated Sep 6, 2026

John Chamberlin

DBA CHAMBERLIN MATERIALS

3 power unitsDENTON, TX50/100
CARRIER INACTIVEMC-689093 INACTIVE

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

No roadside inspections on record.

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

No roadside inspections on the FMCSA record in this window

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
Vehicle Maintenance
0violations
clean · per-BASIC

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.

Crash history· 11 total · 0 in 24 mo

11
Total crashes
0
In last 24 mo
0
Fatal
4
Injury
YearCrashesFatalInjuryTow
20191001
20161001
20142012
20121011
20101010
20083013
20071001
20061001
DateStateFatalitiesInjuriesTow-away
Feb 11, 2019TX00Yes
Mar 19, 2016TX00Yes
May 21, 2014OH00Yes
Jan 27, 2014PA01Yes
Feb 12, 2012TX01Yes
Apr 22, 2010TX01No
Dec 23, 2008TX02Yes
Apr 8, 2008TX00Yes
Jan 31, 2008TX00Yes
Nov 14, 2007TX00Yes
Sep 19, 2006TX00Yes