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EXTREME MATERIALS INC

DBA: KNIGHTS TRUCKING

Joins 82 roadside inspections (24 mo), 1 authority docket, BIPD on file (ZURICH AMERICAN INSURANCE COMPANY) from FMCSA public filings. Data as of Oct 22, 2026. Booking triage is above; confirm on SAFER before tendering.

Brokers & shippers · booking check

Book with caution — review signals below

No hard OOS / revoked / uninsured blocker, but elevated risk signals need a human look before booking.

Caution
Coverage resumed · Jan 20, 2012
Policy effective · Mar 1, 2017
Review these
  • Prior insurance gap · 419 days Nov 27, 2010 → Jan 20, 2012
  • OOS rate worse than size peers Vehicle 47.1% vs peer 14.3% Details →
On file
  • 2 active operating authorities
  • Insurance on file · $1,000,000 ZURICH AMERICAN INSURANCE COMPANY · 91X Details →
  • BOC-3 process agent on file #1 A $20 BOC-3 Filing LLC Details →
Built for brokers and shippers deciding whether to tender. Always confirm on FMCSA SAFER and L&I before booking — TruckCodex mirrors public filings and can lag by up to a day. Open full book-check tool
Plain-text risk summary (print / paste)
TruckCodex risk summary — EXTREME MATERIALS INC (USDOT 1905971)
Verdict: CAUTION
Book with caution — review signals below
No hard OOS / revoked / uninsured blocker, but elevated risk signals need a human look before booking.

Authority / census status: Active
Active BIPD limit: $1,000,000

Blockers:
  (none)

Cautions:
  • Prior insurance gap · 419 days — Nov 27, 2010 → Jan 20, 2012
  • OOS rate worse than size peers — Vehicle 47.1% vs peer 14.3%

On file:
  • 2 active operating authorities
  • Insurance on file · $1,000,000 — ZURICH AMERICAN INSURANCE COMPANY · 91X
  • BOC-3 process agent on file — #1 A $20 BOC-3 Filing LLC

Source: https://truckcodex.com/usdot/1905971/
As of: Oct 22, 2026
Always confirm on FMCSA SAFER and L&I before tendering — TruckCodex mirrors public filings and can lag by up to a day.
USDOT 1905971 Active AUTHORIZED FOR HIRE Company officer: THAD WHARTON Company officer 2: MICHAEL B KNIGHT Other (SAND, ROCK, CEMENT) Based in SUMMERVILLE, SC

FMCSA census as of Oct 22, 2026 · Sources · Freshness · Methodology · Disclaimer

TruckCodex · filing & peer scorecard

TruckCodex filing & peer scorecard · A

Composite of 4/5 scored components (mean 85/100). Separate from booking triage on this page. Expand for per-signal evidence. Heuristic — not an FMCSA rating or legal advice.

A confidence 80% · 4/5 signals · expand
Authority / census
Active · 100/100

Active census status with no OOS order or revoked authority on file.

Insurance / BIPD
BIPD active · 100/100

Active BIPD/Primary-like policy on file in our insurance history.

OOS vs peers
Mixed vs peers · 40/100

Driver OOS 0% vs peer median 0% (neutral). Vehicle OOS 47.1% vs peer median 14.3% (worse). n=26378 same-size ACTIVE peers.

FMCSA safety rating
Unrated

FMCSA has not assigned this carrier a formal safety rating. We do not invent one.

NR reason: No published FMCSA safety_rating.

Insurance-watch tier
Not on watch · 100/100

No BMC-91 insurance-lapse watch classification on file for this USDOT.

TruckCodex filing & peer scorecard from authority, BIPD, peer OOS, FMCSA safety rating, and insurance-watch signals. Not a booking verdict and not legal advice. See methodology. Booking triage on this page: Caution.

Operating authority
common 1 active
Motor Carrier of Property (Except Household Goods) 1 active
Insurance

ZURICH AMERICAN INSURANCE COMPANY · BMC-91X · $1,000,000

2 active liability filings

Company profile

Company details
USDOT 1905971
In FMCSA records since Jun 23, 2009 (~17y)
MC / docket MC699110
Company officer THAD WHARTON
Company officer 2 MICHAEL B KNIGHT
Operation AUTHORIZED FOR HIRE
Cargo carried
Other (SAND, ROCK, CEMENT)
Fleet size 38 units
Drivers 38
Annual mileage 2,143,000 mi
Contact & address
Physical
480 HODGE ROAD
SUMMERVILLE, SC 29483
Mailing
PO BOX 3408
SUMMERVILLE, SC 29484
Registration & safety rating
USDOT 1905971
In FMCSA records since Jun 23, 2009 (~17y)
Operation AUTHORIZED FOR HIRE
Annual mileage (MCS-150) 2,143,000 mi
vs. National Average
Vehicle OOS Rate 47.1% vs 23.4% +23.7 pts
Driver OOS Rate 0.0% vs 6.7% -6.7 pts
Violations per Inspection 1.05 vs 1.80 -0.75
Peer tier (mid-sized fleets (11-100 power units)) median OOS rate: 27.6%
Active liability insurance
BMC-91X · $1,000,000 · BAP 0081053
Effective Mar 1, 2017
BMC-91X · BAP 0081053
Effective Mar 1, 2017
FMCSA cargo filing (BMC-34/83)

No active FMCSA cargo filing on file.

FMCSA L&I filing evidence — not a shipper certificate of insurance (COI). Cargo (BMC-34) is primarily an HHG / household-goods requirement; general freight carriers often have none.

Broker bond / trust (BMC-84/85)

No active broker surety bond or trust fund on file.

BMC-84 is a surety bond; BMC-85 is a trust-fund agreement. Required for property brokers / freight forwarders — not motor-carrier BIPD liability insurance.

Broker setup by MC age
Open MC age checker · Check brokers for this MC age

Based on FMCSA authority grant of 2012-02-03 (2,000+ days). Published gates only — not a guarantee they will accept. Confirm with the broker.

Related filings

Fleet details (MCS-150)

Vehicle type Owned Term leased Trip leased
Truck tractors 23 0 0
Trailers 30 0 0
Trucks 15 0 0

Self-reported on the carrier’s Form MCS-150 (FMCSA Company Census).

Accident reports (24 months)

All 23 crashes →
Last 6 months 6–12 months 12–24 months Total
Fatalities 0 0 0 0
Injuries 0 1 0 1
Tow-away 0 1 1 2
Crash reports 0 1 1 2

Reportable crashes from FMCSA MCMIS for the trailing 24 months. Counts may differ slightly from SAFER due to reporting lag.

Inspections (24 months)

All 149 inspections →
Driver Vehicle Hazmat
Inspections 82 82 0
OOS inspections 0 7 0
OOS percentage 0% 8.54% —
National average 6.7% 23.4% 4.4%

Roadside inspections in the last 24 months. National averages are FMCSA MCSAP reference rates (driver ~6.7%, vehicle ~23.4%, hazmat ~4.4%).

Power Units
38
Drivers
38
Inspections
149
FMCSA roadside history on file
OOS Rate (peak)
47.1%
driver or vehicle, whichever higher
Crashes (24m)
2
23 all-time
Authorities
2
2 active

Risk Signals

High OOS rate
Peak OOS rate of 47.1% is well above FMCSA MCSAP national averages (driver ~6.7%, vehicle ~23.4%).

Out-of-Service rate vs same-size peers FMCSA roadside inspections, % placed out-of-service

Compared against 26,378 ACTIVE carriers operating 19–57 power units (±50% of this carrier's 38 unit fleet).

This carrier — Driver OOS
0%
Drivers placed out-of-service at roadside inspections
Peer median
0%
Median across 26,378 same-size peers
Verdict
On par with peers
Delta 0 pts vs peer median (lower is safer)
This carrier — Vehicle OOS
47.1%
Vehicles placed out-of-service at roadside inspections
Peer median
14.3%
Median across 26,378 same-size peers
Verdict
Riskier than peers
Delta +32.8 pts vs peer median (lower is safer)

Historical coverage gap detected (1)

  • No active BIPD/Primary insurance from Nov 27, 2010 to Jan 20, 2012 (419 days)
Inspection Analytics Monthly activity · BASIC mix · state map

Monthly Inspection Activity (37 months)

2023-10 2026-10

Violations by BASIC Category

Federal BASIC buckets for every citation issued against this carrier over the past 24 months.

Activity by State

States this carrier has been inspected in over the past 24 months.
State Inspections OOS OOS % Last Inspection
South Carolina (SC) 81 7 8.6% Oct 15, 2026
Georgia (GA) 1 0 0.0% Feb 13, 2025
Vehicle Fleet Top makes and models observed in roadside inspections
Make Model Inspections
International 35
Kenworth 32
Western Star 31
Mack 18
Rhodes 12
Unknown 12
Heil 4
SMS BASIC Scores FMCSA Safety Measurement System per-BASIC scores
BASIC Inspections Serious Measure Percentile Alert As Of
Driver Fitness 0 — 0.00 0 — Oct 19, 2026
Controlled Substances / Alcohol 0 — 0.00 0 — Oct 19, 2026
Hours of Service 0 — 0.00 0 — Oct 19, 2026
Unsafe Driving 6 — 0.49 0 — Oct 19, 2026
Vehicle Maintenance 12 — 10.20 10 — Oct 19, 2026

Higher percentiles indicate worse performance relative to peer carriers. Carriers at or above the FMCSA intervention threshold are marked ALERT.

Recent Inspections (149 rows) View all 149 →
Inspection # Date ▼ State Level Station Vehicle Violations Top Codes OOS
89271613 Oct 15, 2026 SC 3 GILBERT SC
WESTERN STAR TRUCK TRACTOR
2 392.2-SLLTL, 396.17C-PI No
89231462 Oct 7, 2026 SC 3 HARLEYVILLE SC — 1 392.2-SLLEWA1 No
89210325 Oct 7, 2026 SC 3 WEST COLUMBIA SC — 0 — No
89186645 Oct 6, 2026 SC 2 WEST COLUMBIA SC
WESTERN STAR TRUCK TRACTOR
3 393.75A3-TAOL, 392.2-SLLEWA2 Yes
88994225 Sep 15, 2026 SC 3 LEXINGTON SC
WESTERN STAR TRUCK TRACTOR
3 392.2-SLLSIV, 392.2-SLLS1, 392.2-SLLIRP No
88756692 Aug 21, 2026 SC 3 —
INTERNATIONAL STRAIGHT TRUCK
1 392.2-SLLML No
88761508 Aug 20, 2026 SC 3 —
WESTERN STAR TRUCK TRACTOR
1 392.2-SLLEWG2 No
88723129 Aug 18, 2026 SC 3 —
WESTERN STAR TRUCK TRACTOR
1 392.2-SLLEWA1 No
88349248 Jul 8, 2026 SC 3 —
WESTERN STAR TRUCK TRACTOR
0 — No
88112217 Jun 11, 2026 SC 3 —
OSHKOSH STRAIGHT TRUCK
1 392.2-SLLEWG3 No
87922576 May 20, 2026 SC 3 —
WESTERN STAR TRUCK TRACTOR
1 392.2-SLLEWG2 No
87544456 Apr 6, 2026 SC 3 LADSON SC
KENWORTH STRAIGHT TRUCK
1 392.2-SLLEWG3 No
87321315 Mar 18, 2026 SC 3 WEST COLUMBIA SC
INTERNATIONAL STRAIGHT TRUCK
0 — No
87318214 Mar 17, 2026 SC 3 SUMMERVILLE SC
KENWORTH STRAIGHT TRUCK
1 392.2-SLLEWG3 No
87310119 Mar 17, 2026 SC 3 RIDGEWAY SC
WESTERN STAR TRUCK TRACTOR
0 — No
87236361 Mar 5, 2026 SC 2 REEVESVILLE SC
WESTERN STAR TRUCK TRACTOR
1 393.78A-WS No
87195624 Mar 3, 2026 SC 3 LEXINGTON SC
KENWORTH STRAIGHT TRUCK
1 392.2-SLLEWA3 No
87186877 Mar 2, 2026 SC 2 WEST COLUMBIA SC
INTERNATIONAL STRAIGHT TRUCK
0 — No
87176611 Feb 26, 2026 SC 3 SAINT GEORGE SC
WESTERN STAR TRUCK TRACTOR
2 392.2-SLLSR, 392.2-SLLEWG2 No
87170954 Feb 24, 2026 SC 3 WALTERBORO SC
WESTERN STAR TRUCK TRACTOR
1 392.2-SLLEWA2 No
87168668 Feb 24, 2026 SC 3 LEXINGTON SC
KENWORTH STRAIGHT TRUCK
1 392.2-SLLEWA3 No
87097758 Feb 20, 2026 SC 3 COLUMBIA SC
KENWORTH STRAIGHT TRUCK
1 392.2-SLLEWG3 No
87105430 Feb 18, 2026 SC 3 HARLEYVILLE SC
WESTERN STAR TRUCK TRACTOR
2 392.2-SLLSR, 392.2-SLLEWA1 No
86884803 Jan 21, 2026 SC 3 REEVESVILLE SC
WESTERN STAR TRUCK TRACTOR
0 — No
86756436 Jan 8, 2026 SC 3 EASTOVER SC
KENWORTH STRAIGHT TRUCK
1 392.2-SLLEWPB No
Recent Crashes (23 rows)
Report # Date ▼ State Fatalities Injuries Tow Hazmat Severity
SC0026204868 Feb 6, 2026 SC 0 1 Yes No Injury
SC0025257983 Jun 26, 2025 SC 0 0 Yes No Tow
SC0024266187 Aug 19, 2024 SC 0 0 Yes No Tow
GA0009192254 Oct 19, 2023 GA 0 0 Yes No Tow
SC0023531441 May 15, 2023 SC 0 0 Yes No Tow
SC0023206169 Jan 9, 2023 SC 0 0 Yes No Tow
SC0022227879 Apr 22, 2022 SC 0 0 Yes No Tow
SC0022212284 Feb 18, 2022 SC 0 1 Yes No Injury
SC0021234265 Apr 23, 2021 SC 0 2 Yes No Injury
SC0021510353 Mar 2, 2021 SC 0 0 Yes No Tow
SC0020246888 Jun 12, 2020 SC 0 0 Yes No Tow
SC0020510762 Feb 12, 2020 SC 0 1 Yes No Injury
SC0019576374 Jun 3, 2019 SC 0 2 Yes No Injury
SC0019531634 Mar 13, 2019 SC 0 0 Yes No Tow
SC0019519639 Feb 4, 2019 SC 0 1 Yes No Injury
SC0017019705 Sep 19, 2017 SC 0 0 Yes No Tow
SC0017579022 Jun 14, 2017 SC 0 0 Yes No Tow
SC0017002901 Feb 10, 2017 SC 0 0 Yes No Tow
SC0015619352 Oct 26, 2015 SC 0 3 Yes No Injury
SC0015578613 Aug 5, 2015 SC 0 0 Yes No Tow
SC0014613597 Nov 1, 2014 SC 0 1 Yes No Injury
SC010129408B Oct 19, 2010 SC 0 1 No No Injury
SC009026205B Mar 12, 2009 SC 0 1 No No Injury
Authority Records (2 dockets)
MC Certificate Documents (1 letter, 1 PDF)

Authority Records (above) are FMCSA docket status and lifecycle events. MC Certificate Documents here are the archived PDF letters for each action — grants, reinstatements, revocations, name changes, and transfers. They are related but not the same dataset: one row per PDF letter, not one file per docket.

Each row is a distinct FMCSA letter (grant, reinstatement, revocation, name change, transfer, etc.). When a PDF is archived, click the link to open that letter. Rows without a link still show the action type and date from our index. FMCSA stopped publishing new daily certificate PDFs after the May 2026 Motus cutover — rows below are historical archive only.

Date Docket Action Authority PDF
Feb 3, 2012 MC699110-C Original MC Certificate Revocation Original MC Certificate →
Insurance Coverage Timeline (5 rows)

Every insurance policy on file, newest effective date first. Amber rows mark BIPD/Primary coverage gaps.

Insurer Policy # Type Limit Effective Cancel Status
ZURICH AMERICAN INSURANCE COMPANY BAP 0081053 91X $1,000,000 Mar 1, 2017 On file ACTIVE
ZURICH AMERICAN INSURANCE COMPANY BAP 0081053 BMC-91X — Mar 1, 2017 On file ACTIVE
PENNSYLVANIA NATIONAL MUTUAL CAS. INS. CO. AX90664059 BIPD/Primary — Jan 20, 2012 Mar 1, 2017 REPLACED
Coverage gap — 419 days without BIPD/Primary coverage from Nov 27, 2010 to Jan 20, 2012
PENNSYLVANIA NATIONAL MUTUAL CAS. INS. CO. AX9 0664059 BIPD/Primary — May 11, 2010 Nov 27, 2010 CANCELLED
Compliance Timeline Merged authority / insurance / enforcement events
  1. Nov 22, 2023
    authority
    DISCONTINUED REVOCATION — COMMON
    Details →
  2. Mar 1, 2017
    insurance
    TERM/REPL — PENNSYLVANIA NATIONAL MUTUAL CAS. INS. CO.
  3. Feb 3, 2012
    authority
    GRANTED — MOTOR PROPERTY COMMON CARRIER
    Details →
  4. Nov 27, 2010
    insurance
    CANCEL — PENNSYLVANIA NATIONAL MUTUAL CAS. INS. CO.
  5. Nov 27, 2010
    insurance gap
    Coverage gap: 419 days without BIPD/Primary insurance (through Jan 20, 2012)
  6. Jan 27, 2010
    authority
    DISMISSED — MOTOR PROPERTY CONTRACT CARRIER
    Details →
Top Stations & Violation Codes Where this carrier gets inspected and what they get cited for

Most-Inspected Stations

Top Violation Codes Cited

Code Description Category Cited OOS
392.2 Violation of Local Laws Unsafe Driving 53 0
393.75(a)(3) Tire-flat and/or audible air leak Vehicle Maintenance 4 4
393.9(a) Inoperable required lamps Vehicle Maintenance 4 0
393.78 Wipers - Inoperative / missing / damaged wipers. Vehicle Maintenance 3 0
393.100(b) Leaking/spilling/blowing/falling cargo Vehicle Maintenance 2 2
383.23(a)(2) Operating a CMV without a CDL Driver Fitness 1 1
391.15(a) Driving a CMV while disqualified Driver Fitness 1 1
391.45(b) Expired medical examiner's certificate Driver Fitness 1 0
393.11 No or defective lighting devices or reflective material as required Vehicle Maintenance 1 0
393.60(d) Windshield / Windows - Tinting permits less than 70% of light transmittance. Vehicle Maintenance 1 0

Booking & risk tools

Open dedicated checkers pre-filled with this USDOT — same public filings as the triage card above.

Related Records

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