CSA
UnknownUSDOT 1703824· CARRIER· EIN 95-2479925
⬇ PDF report

DIAMOND MATTRESS CO INC

3112 E LAS HERMANAS ST, COMPTON, CA, 90221(310) 638-0363m.romero@diamondmattress.comSHAUN PENNINGTON
Vetting snapshot
Authority
Unknown
per SAFER
Insurance
No active filing
not required
Vehicle OOS
35.5%
above 22% national avg
Driver OOS
0%
below 6.7% national avg
Crashes 24mo
0
clean
Red flags
None
nothing flagged
75
/ 100

Risk factors

Moderate riskVioCodes score
Vehicle OOS 35.5% — well above the 22% national average

A weighted read of the public FMCSA signals below — authority, insurance, out-of-service, crashes, roadside OOS rates, and carrier connections. A starting point for vetting, not a guarantee.

Roadside inspection performance

Out-of-service rate vs national average. Lower is better.

Vehicle31 inspections · 35.5% OOS · National 22%
Driver37 inspections · 0% OOS · National 6.7%

CSA performance breakdown

FMCSA · Sep 2026

37 inspections · 62 violations (12 OOS) · 30% of inspections had an OOS finding.

37
Inspections
62
Violations
12
OOS violations
10
Distinct codes

Violations by BASIC

click to filter codes

17
total

Most inspected in · top 2 states

  • CA27
  • NV3

Latest FMCSA SMS snapshot. Codes link to the lookup — severity weighting, contest angles, and the DataQs Drafter for each. Click a BASIC to filter the codes.

Recommendations

What’s driving each score, what to do about it, and where it could go.

Brakes violations are the leading contributor to Vehicle Maintenance

High impact

Estimated Vehicle Maintenance percentile of 91% is at/over the 80% intervention line. Carriers with a BASIC in alert are prioritized for enforcement (warning letters, audits) and inspected more often — which tends to generate still more violations.

What’s contributing53 violations · 15 OOS (24 mo)
Brakes6 OOS23 viol45%
  • 396.3A1-BALACBrake - Audible air leak from a brake chamber2× · 5%
  • 393.45D-BAir Brake - Audible air leak at a proper connection2× · 4%
  • 396.3A1-BALRAir Brake - Fails air loss rate test2× · 4%
Lighting / lamps2 OOS14 viol18%
  • 393.9A-LSLIWRLighting - Stop lamps - Both inoperative when required to be on2× · 5%
  • 393.9A-LCLLighting - Clearance lamp(s) inoperative4× · 4%
  • 393.11A1-LCHLLighting - Lamps improper color, height, location.2× · 4%
Tires3 OOS5 viol18%
  • 393.75A3-TAOLTires - All others, leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS3× · 11%
  • 393.75C-TAOTD-LT2/32Tires - Less than 2/32 inch tread depth2× · 7%
Suspension / axle2 OOS3 viol11%
  • 393.207A-STBWSuspension - Suspension connecting rod or tracking component assembly missing the rubber bushing or the rubber bushing is worn to the extent that the component ca1× · 6%
  • 393.207F-SDASSuspension - Deflated air suspension1× · 3%
  • 393.207A-SAPPCBLMSuspension - Axle positioning part cracked/broken/loose/missing.1× · 2%
What to do
  • Check brake adjustment and listen for air leaks every pre-trip; put brakes on the PM schedule
  • Fix air-loss and warning-light faults before dispatch — don’t “drive it in”
  • Prioritize the out-of-service items — they carry the heaviest weight
Projected estimatecould improve up to 35 pts in ~12 mo
nowin 12 months
Current trend 50% followed 100% followed 80% line

Vehicle out-of-service rate exceeds the national average

High impact

Vehicle OOS rate is 37.5% vs the 22% national average. Carriers above the national OOS average draw more enforcement attention (audits, roadside stops) and can see higher insurance premiums.

What to do
  • Review recent inspections with out-of-service violations and fix the root causes with equipment and drivers
  • Run a preventative-maintenance program; periodically inspect tires, brakes and lights
  • Reinforce thorough pre-trip and post-trip inspections; retrain where needed

A high share of violations are occurring in Orange County, CA

Medium impact

10 of 45 violations in the last 12 months (22%) came from inspections in Orange County, CA. That can mean tougher enforcement there or simply more of your miles run through it — either way it's worth a look.

What to do
  • Review the inspections from Orange County, CA to spot recurring issues
  • Brief drivers running that lane; consider rerouting around the toughest enforcement corridors where practical

Driver Fitness needs attention

Low impact

Estimated Driver Fitness percentile of 0% is under the 80% line. In decent shape, but here's what's driving it.

What to do
  • Review recent inspections with violations in this BASIC and take remedial action with drivers/equipment

Controlled Substances/Alcohol needs attention

Low impact

Estimated Controlled Substances/Alcohol percentile of 0% is under the 80% line. In decent shape, but here's what's driving it.

What to do
  • Review recent inspections with violations in this BASIC and take remedial action with drivers/equipment

Recommendations are generated from the carrier’s public FMCSA roadside-inspection record. Percentiles and projections are VioCodes estimates, not official FMCSA figures. Informational, not legal advice.

90-day safety improvement plan

What this carrier has struggled with most in the last 90 days — where to focus now.

Improving
6
Inspections
8
Violations
4
Out-of-service
3
Clean
Where the violations are
Vehicle Maintenance 63%Other 25%Unsafe Driving 13%
Focus here first
1Vehicle Maintenance
5 violations · 4 OOS · 63% of recent
  • 393.207A-STBWSuspension - Suspension connecting rod or tracking component assembly missing the rubber bushing or the rubber bushing is worn to the extent that the component ca · OOS
  • 393.45D-SGNCNBBrakes - Service brakes on trailer inoperative due to no trailer connection or air shut off · OOS
  • 393.45D-BAALAir Brake - Audible air leak at other than a proper connection · OOS
Do this
  • Look under the truck for shifted axles and broken/leaking suspension parts
  • Include suspension in scheduled maintenance
2Other
2 violations · 25% of recent
  • 393.60CWindshield - Damaged or Discolored
  • 393.47EBrake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt
Do this
  • Log in and annotate the ELD correctly every day; fix edits promptly
  • Plan trips around available hours — never falsify a log
3Unsafe Driving
1 violation · 13% of recent
  • 392.2-SLLLRState/Local Laws - Lane restriction violation
Do this
  • Coach speed and following distance — Unsafe Driving points are weighted heavily
  • Hands off the phone; always belt up
🎓
Turn these into driver coaching — and prove it
FleetTrained (my companion project) makes branded, multilingual training videos for these exact violations — your driver watches and gets a completion certificate for the file.

Based on roadside inspections in the last 90 days, ranked by what recurs most. Informational, not legal advice.

Inspection & crash map

live · FMCSA MCMIS

Every inspection and crash on record — hover a point for the summary, click for full detail (codes, severity, CSA points).

48
Inspections
95
Violations
22
Out-of-service
477
CSA points
6
Crashes
3
States
cleanviolOOS

CSA points = violation severity weight × FMCSA time weight (3× in the last 6 months, 2× at 6–12, 1× at 12–24). Points are spread within each state — FMCSA records the inspection state, not an exact location. Source: FMCSA MCMIS.

Equipment

VINs via NHTSA

28 distinct vehicles seen in this carrier’s roadside inspections.

15 trailer 9 truck 4 other
2013 FREIGHTLINER Cascadiaseen 14×
3AKJGBDV6DSFF4578· 9E97423 CA
2013 FREIGHTLINER Cascadiaseen 9×
3AKBGADV7DSFE7217· 9F02947 CA
2013 FREIGHTLINER Cascadiaseen 6×
1FUJGEDV8DSBU6008· 9F64017 CA
2015 FREIGHTLINER Cascadiaseen 6×
3AKJGEDV7FDGM7882· 9G61880 CA
2015 FREIGHTLINER Cascadiaseen 5×
3AKJGEDV5FDGM7881· 9F20946 CA
PIKEseen 5×
1PKV28100LS001451· 4TH3231 CA
PIKEseen 5×
1PKV28102LS001452· 4TH3230 CA
2013 FREIGHTLINER Cascadiaseen 5×
1FUJGEDV8DSBZ4043· 9F35801 CA
1995 HYUNDAI TRANSLEAD TRAILERS Hyundai Translead Trailersseen 5×
3H3V532CXST001746· 1VX6178 CA
PIKEseen 4×
1PKV28109LS001450· 4TH3229 CA
2005 GREAT DANE TRAILERS Great Dane Trailersseen 3×
1GRAA06235D409688· 4NY8794 CA
1999 UTILITY TRAILER MANUFACTURER Utility Trailer Manufacturerseen 3×
1UYVS1282XC884302· 4TX7313 CA
2027 TRAILMOBILE Trailmobile Trailerseen 3×
1PT01JAHXV6002088· 4MP8928 CA
2006 GREAT DANE TRAILERS Great Dane Trailersseen 2×
1GRAA06226T531546· 4RA8266 CA
PIKEseen 2×
1PKV281091S001450· 4TH2339 CA
2006 GREAT DANE TRAILERS Great Dane Trailersseen 2×
1GRAA06216T527231· 4RA8270 CA
2006 GREAT DANE TRAILERS Great Dane Trailersseen 2×
1GRAA06276T531560· 4RA8267 CA
2000 HYUNDAI TRANSLEAD TRAILERS Hyundai Translead Trailersseen 2×
3H3V532C6YT056011· 4AB6011 CA
2005 GREAT DANE TRAILERS Great Dane Trailers
1GRAA06275T516913· 4PG9606 CA
2011 FREIGHTLINER Cascadia
1FUJGEDV0BSAY8120· 9F15920 CA
1999 GREAT DANE TRAILERS Great Dane Trailers
1GRAA0621XB150312· 4MW1009 CA
1997 HYUNDAI TRANSLEAD TRAILERS Hyundai Translead Trailers
3H3V532C7VT010067· 4GH7436 CA
2007 MACK CHN
1M1AJ02Y97N001164· 1N12974 TX
2023 STOUGHTON TRAILERS Stoughton Trailers
1DW1A532XPS801832· 215C218 TX
2022 STRICK COMMERCIAL TRAILER
1S11S8289NG345696· 4MS5969 CA
2015 INTERNATIONAL RF027
3HSHXSNR3FN743552· 9F90654 CA
2006 UTILITY TRAILER MANUFACTURER Utility Trailer Manufacturer
1UYVS25306G720804· 4PG9877 CA
1999 TRAILMOBILE Trailmobile Trailer
1PT01JAH5X6006505· 4KW8045 CA

Equipment is inferred from VINs recorded on roadside inspections (FMCSA MCMIS), decoded via the NHTSA vPIC API — it reflects vehicles inspected, not a current fleet roster.

Company profile

FMCSA census

PRIVATE PROPERTY

Power units
9
on file (MCS-150)
Drivers
5
5 hold a CDL
Annual mileage
0.2M mi
reported 2024
Recordable crash rate
0.00
per million miles
How far they run · drivers by operating lane
  • Interstate · 100+ mi5 drivers
Company officer
SHAUN PENNINGTON
Operation
Interstate
Registered since
2007-10-31
Last MCS-150 update
2025-08-19
Census status
Active

Fleet: 9 trucks · 8 owned tractors · 26 owned trailers.

Source: FMCSA Company Census File (data.transportation.gov). Fleet and driver counts are self-reported on the carrier’s most recent MCS-150 filing.

Connections

carrier graph

This carrier shares VINs or phone numbers with 4 other carriers — review the connections below as part of your vetting.

4
Connected carriers
3
Fleet-transfer links
2
Most shared VINs
0
Strong links
Medium· 1
URBINA TRUCKING INC
USDOT 2875121Active· COMPTON, CA
Medium
Shared VIN · 2
1GRAA06235D4096881GRAA06275T516913

Shared VINs come from FMCSA roadside-inspection records — a vehicle inspected under more than one carrier, often a fleet transfer or trailer interchange. Other links come from the FMCSA census. Shared identifiers are common and often legitimate — treat these as leads to investigate, not proof of wrongdoing.

Activity history

2 events
  1. 08/19/2025MCS-150 update filed

    0.2M mi reported (2024)

  2. 10/31/2007Registered with FMCSA

    PRIVATE PROPERTY

Merged from FMCSA authority, insurance, out-of-service, and census records.

🚛

Operations

Classification

  • PRIVATE PROPERTY

Area served

  • Interstate

FMCSA safety rating

Rating
Not rated
Type
Rated
Last review
📄

MCS-150 registration

Form date
2025-08-19
Reported mileage
240,000 mi (2024)
📜

Changes on file

FMCSA census history
  1. April, 2022

    • Drivers shrank to 9
  2. January, 2021

    First on-record entry — DIAMOND MATTRESS CO INC, ,

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Data sourced from public FMCSA records via safer.fmcsa.dot.gov · Latest FMCSA update: Sep 2026 · Page refreshed: Sep 15, 2026, 2:27 AM. VioCodes is not affiliated with FMCSA. To dispute incorrect data, file a DataQs Request for Data Review.