Safety Measurement System - Complete SMS Profile (U.S. DOT# 1905971)

EXTREME MATERIALS INC

DBA: KNIGHTS TRUCKING

U.S. DOT#: 1905971

Address: 480 HODGE ROAD
SUMMERVILLE, SC 29483
Number of Vehicles: 38
Number of Drivers: 38
Number of Inspections: 89

Safety Rating & OOS Rates

(As of 01/31/2026 updated daily from SAFER )

Not Rated

Out of Service Rates

Type	OOS %	National Avg %
Vehicle	50.0	23.2
Driver	0.0	6.4
Hazmat		4.4

Licensing and Insurance

(As of 01/31/2026 updated hourly from L&I )

Active For-Hire Authority
Type	Yes/No	MC#/MX#
Property	Yes	MC-699110
Passenger	No
Household Goods	No
Broker	No

BASIC Status (Public Property Carrier View)

Behavior Analysis & Safety Improvement Categories (BASICs) Based on a 24-month record ending December 26, 2025

On-Road Performance
0.24 Measure	Not Public	0 Measure	9.03 Measure	0 Measure	Not Public	0 Measure
On-Road Performance Detail
Driver Inspections with Unsafe Driving Violations: 4 Safety Event Group: 3-4 driver inspections with Unsafe Driving Violations Avg. PU × UF: 107.2 Segment: Straight Carrier	Not Public	Driver Inspections: 89 with HOS Compliance Violations: 0 Safety Event Group: 21-100 relevant driver inspections	Vehicle Inspections: 20 with Vehicle Maint. Violations: 15 Safety Event Group: 11-20 relevant vehicle inspections	Driver Inspections: 89 with Drugs/Alcohol Violations: 0 Safety Event Group: No Safety Event Grouping	Not Public	Driver Inspections: 89 with Driver Fitness Violations: 0 Safety Event Group: 21-100 relevant driver inspections
Investigation Results
No Acute/Critical Violations Discovered	N/A	No Acute/Critical Violations Discovered	No Acute/Critical Violations Discovered	No Acute/Critical Violations Discovered	Not Public	No Acute/Critical Violations Discovered

Select a BASIC icon above to get details, or view your Complete SMS Profile.

Violation Summary

Violations: 37


Violations	Description	# Violations	# OOS Violations	Violation Severity Weight	BASIC

392.2LV	Lane Restriction violation	1	0	3	Unsafe Driving
392.2-SLLLR	State/Local Laws - Lane restriction violation.	2	0	3	Unsafe Driving
392.2-SLLTCD	State/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g., safety offical, signal, sign, light, lane marking, other.	1	0	5	Unsafe Driving
393.100B-C	Cargo - Cargo not secured to prevent leaking/spilling/blowing/falling from CMV.	3	3	7	Vehicle Maint.
393.203C-CBP	Cab and Body Parts - Hood not securely fastened.	1	0	2	Vehicle Maint.
393.205C-WRAWFLMIB	Wheel/Rim - Any wheel fasteners loose/missing/ineffective/broken.	1	0	2	Vehicle Maint.
393.55D1-B	Air Brake - ABS malfunction lamp defective on truck/bus manufactured on or after March 1, 1997 and each single unit CMV on or after March 1, 1998.	1	0	4	Vehicle Maint.
393.60(d)	Windshield / Windows - Tinting permits less than 70% of light transmittance.	3	0	1	Vehicle Maint.
393.75(a)	Flat tire or fabric exposed	1	1	8	Vehicle Maint.
393.75(a)(3)	Tire-flat and/or audible air leak	2	2	8	Vehicle Maint.
393.75A3-TAOL	Tires - All others, leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS	4	4	8	Vehicle Maint.
393.78	Wipers - Inoperative / missing / damaged wipers.	3	0	1	Vehicle Maint.
393.78A-WS	Washers - Inoperative washing system.	3	0	1	Vehicle Maint.
393.9	Inoperable Required Lamp	3	0	2	Vehicle Maint.
393.95(a)	No/discharged/unsecured fire extinguisher	1	0	2	Vehicle Maint.
393.9A-HLLH	Lighting - Headlamp(s) fail to operate on low and high beam.	1	0	6	Vehicle Maint.
393.9A-LCL	Lighting - Clearance lamp(s) inoperative.	1	0	2	Vehicle Maint.
393.9A-LIL	Lighting - Identification lamp(s) inoperative.	2	0	2	Vehicle Maint.
393.9A-LSLIWR	Lighting - Stop lamps - Both inoperative when required to be on.	1	1	6	Vehicle Maint.
396.17C-PI	Operating a CMV without documentation of a periodic inspection.	1	0	4	Vehicle Maint.
396.3A1-OAL	Other - Any air leak not attributed to the brake or suspension system.	1	0	4	Vehicle Maint.

Inspection History

Total Inspections: 89


Report			Vehicle			Measure
Inspection Date	Number	State	Plate Number	Plate State	Type	Severity Weight (SW)	Time Weight (TiW)

12/18/2025	SC0413000271	SC	NO PLATE	SC	TRUCK TRACTOR		3
12/18/2025	SC0412000265	SC	P917660	SC	TRUCK TRACTOR		3
11/20/2025	SC0328000798	SC	P811684	SC	STRAIGHT TRUCK		3
11/14/2025	SC0298004451	SC	A007923	SC	TRUCK TRACTOR		3
11/14/2025	SC0340002409	SC	P535232	SC	STRAIGHT TRUCK		3
10/15/2025	SC0358002334	SC	P811684	SC	STRAIGHT TRUCK		3
10/13/2025	SC0286006187	SC	A007922	SC	TRUCK TRACTOR		3
10/9/2025	SC0378001831	SC	P836980	SC	STRAIGHT TRUCK		3
10/2/2025	SC0328000685	SC	A000613	SC	TRUCK TRACTOR		3
Vehicle Maint. Violation: 393.75A3-TAOL Tires - All others, leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS (OOS)						8 + 2 (OOS)
Vehicle Maint. Violation: 393.9A-LSLIWR Lighting - Stop lamps - Both inoperative when required to be on (OOS)						6 + 2 (OOS)
9/30/2025	SC0297003399	SC	A000613	SC	TRUCK TRACTOR		3
9/29/2025	SC0270006799	SC	A000612	SC	TRUCK TRACTOR		3
Unsafe Driving Violation: 392.2-SLLLR State/Local Laws - Lane restriction violation						3
9/24/2025	SC0365003021	SC	P836980	SC	STRAIGHT TRUCK		3
9/19/2025	SC0233007294	SC	A007922	SC	TRUCK TRACTOR		3
9/9/2025	SC0322003125	SC	P535232	SC	STRAIGHT TRUCK		3
9/2/2025	SC0298004345	SC	P535232	SC	STRAIGHT TRUCK		3
Vehicle Maint. Violation: 396.17C-PI Operating a CMV without documentation of a periodic inspection						4
Vehicle Maint. Violation: 393.9A-LIL Lighting - Identification lamp(s) inoperative						2
Vehicle Maint. Violation: 393.9A-HLLH Lighting - Headlamp(s) fail to operate on low and high beam						6
Vehicle Maint. Violation: 393.78A-WS Washers - Inoperative washing system.						1
Vehicle Maint. Violation: 393.100B-C Cargo - Cargo not secured to prevent leaking/spilling/blowing/falling from CMV (OOS)						7 + 2 (OOS)
Vehicle Maint. Violation: 393.9A-LCL Lighting - Clearance lamp(s) inoperative						2
8/25/2025	SC0149008202	SC	A007924	SC	TRUCK TRACTOR		3
Unsafe Driving Violation: 392.2-SLLLR State/Local Laws - Lane restriction violation						3
8/8/2025	SC0149008141	SC	A007923	SC	TRUCK TRACTOR		3
8/1/2025	SC0365002887	SC	A007924	SC	TRUCK TRACTOR		3
7/22/2025	SC0149008072	SC	P535232	SC	STRAIGHT TRUCK		3
7/18/2025	SC0288006336	SC	NONE	SC	TRUCK TRACTOR		3
7/7/2025	SC0340002215	SC	P535233	SC	STRAIGHT TRUCK		3
7/1/2025	SC0149007995	SC	P836979	SC	STRAIGHT TRUCK		3
Vehicle Maint. Violation: 393.75A3-TAOL Tires - All others, leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS (OOS)						8 + 2 (OOS)
Vehicle Maint. Violation: 393.60(d) Windshield / Windows - Tinting permits less than 70% of light transmittance						1
6/20/2025	SC0288006282	SC	A002928	SC	STRAIGHT TRUCK		2
Vehicle Maint. Violation: 393.60(d) Windshield / Windows - Tinting permits less than 70% of light transmittance						1
5/27/2025	SC0324003031	SC	P676626	SC	STRAIGHT TRUCK		2
5/23/2025	SC0378001636	SC	P676677	SC	STRAIGHT TRUCK		2
Vehicle Maint. Violation: 393.100B-C Cargo - Cargo not secured to prevent leaking/spilling/blowing/falling from CMV (OOS)						7 + 2 (OOS)
Vehicle Maint. Violation: 393.78A-WS Washers - Inoperative washing system.						1
5/14/2025	SC0328000410	SC	A007925	SC	TRUCK TRACTOR		2
5/5/2025	SC0393000897	SC	P836980	SC	STRAIGHT TRUCK		2
5/1/2025	SC0149007833	SC	P676676	SC	STRAIGHT TRUCK		2
5/1/2025	SC0324002991	SC	A007922	SC	TRUCK TRACTOR		2
4/30/2025	SC0322002870	SC	P811684	SC	STRAIGHT TRUCK		2
4/25/2025	SC0365002641	SC	P676676	SC	STRAIGHT TRUCK		2
4/25/2025	SC0365002642	SC	P676675	SC	STRAIGHT TRUCK		2
4/21/2025	SC0394000884	SC	P783309	SC	TRUCK TRACTOR		2
4/2/2025	SC0324002937	SC	P676677	SC	STRAIGHT TRUCK		2
3/28/2025	SC0393000809	SC	P507745	SC	STRAIGHT TRUCK		2
3/20/2025	SC0365002525	SC	P506374	SC	STRAIGHT TRUCK		2
Vehicle Maint. Violation: 396.3A1-OAL Other - Any air leak not attributed to the brake or suspension system.						4
Vehicle Maint. Violation: 393.78A-WS Washers - Inoperative washing system.						1
Vehicle Maint. Violation: 393.55D1-B Air Brake - ABS malfunction lamp defective on truck-tractor manufactured on or after March 1, 1997 and each single unit CMV on or after 1998.						4
3/7/2025	SC0149007663	SC	A007924	SC	TRUCK TRACTOR		2
2/20/2025	SC0392000205	SC	P850887	SC	TRUCK TRACTOR		2
2/19/2025	SC0365002439	SC	A007925	SC	TRUCK TRACTOR		2
2/13/2025	GA1237000544	GA	P783309	SC	TRUCK TRACTOR		2
Vehicle Maint. Violation: 393.9A-LIL Lighting - Identification lamp(s) inoperative						2
2/10/2025	SC0340001994	SC	P811684	SC	STRAIGHT TRUCK		2
2/6/2025	SC0321002695	SC	P506374	SC	STRAIGHT TRUCK		2
Vehicle Maint. Violation: 393.75A3-TAOL Tires - All others, leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS (OOS)						8 + 2 (OOS)
Vehicle Maint. Violation: 393.60(d) Windshield / Windows - Tinting permits less than 70% of light transmittance						1
1/15/2025	SC0321002653	SC	A007922	SC	TRUCK TRACTOR		2
1/14/2025	SC0240008318	SC	P535233	SC	STRAIGHT TRUCK		2
1/10/2025	SC0149007441	SC	P506375	SC	STRAIGHT TRUCK		2
12/20/2024	SC0358001761	SC	P676676	SC	STRAIGHT TRUCK		1
Vehicle Maint. Violation: 393.75A3-TAOL Tires - All others, leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS (OOS)						8 + 2 (OOS)
11/27/2024	SC0365002229	SC	P889445	SC	TRUCK TRACTOR		1
11/22/2024	SC0379001044	SC	P836979	SC	STRAIGHT TRUCK		1
11/15/2024	SC0328000045	SC	A007922	SC	TRUCK TRACTOR		1
11/11/2024	SC0393000474	SC	P836981	SC	STRAIGHT TRUCK		1
11/6/2024	SC0298003808	SC	A007923	SC	TRUCK TRACTOR		1
11/6/2024	SC0340001929	SC	P836979	SC	STRAIGHT TRUCK		1
11/6/2024	SC0328000030	SC	A007923	SC	TRUCK TRACTOR		1
11/1/2024	SC0298003793	SC	P676675	SC	STRAIGHT TRUCK		1
10/24/2024	SC0378001143	SC	P506374	SC	STRAIGHT TRUCK		1
Unsafe Driving Violation: 392.2-SLLTCD State/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g., safety official, signal, sign, light, lane marking, other						5
10/8/2024	SC0315004294	SC	AD1011IE	SC	TRUCK TRACTOR		1
10/3/2024	SC0167005597	SC	P766406	SC	TRUCK TRACTOR		1
9/12/2024	SCJ233006803	SC	AD1011IL	SC	TRUCK TRACTOR		1
9/11/2024	SCD149007126	SC	P676676	SC	STRAIGHT TRUCK		1
8/22/2024	SCD288005704	SC	P783309	SC	TRUCK TRACTOR		1
8/20/2024	SCW393000273	SC	P535233	SC	STRAIGHT TRUCK		1
8/13/2024	SCF394000265	SC	P535233	SC	STRAIGHT TRUCK		1
8/13/2024	SCR378001013	SC	P683743	SC	STRAIGHT TRUCK		1
8/1/2024	SCR378001008	SC	P676626	SC	STRAIGHT TRUCK		1
Vehicle Maint. Violation: 393.95(a) No/discharged/unsecured fire extinguisher						2
Vehicle Maint. Violation: 393.78 Wipers - Inoperative / missing / damaged wipers						1
7/31/2024	SCL365001901	SC	P850839	SC	TRUCK TRACTOR		1
7/25/2024	SCA340001750	SC	P676677	SC	STRAIGHT TRUCK		1
7/11/2024	SCM396000137	SC	P506374	SC	STRAIGHT TRUCK		1
Vehicle Maint. Violation: 393.75(a)(3) Tire-flat and/or audible air leak (OOS)						8 + 2 (OOS)
7/8/2024	SCC240008149	SC	P507745	SC	STRAIGHT TRUCK		1
7/2/2024	SCA340001722	SC	P811684	SC	STRAIGHT TRUCK		1
7/2/2024	SCA340001723	SC	P836980	SC	STRAIGHT TRUCK		1
7/2/2024	SCA340001724	SC	P535233	SC	STRAIGHT TRUCK		1
6/25/2024	SCO322002251	SC	P676677	SC	STRAIGHT TRUCK		1
6/21/2024	SCA340001702	SC	P507745	SC	STRAIGHT TRUCK		1
6/17/2024	SCA340001689	SC	P535233	SC	STRAIGHT TRUCK		1
6/14/2024	SCA340001683	SC	P836980	SC	STRAIGHT TRUCK		1
6/14/2024	SCA340001684	SC	P535233	SC	STRAIGHT TRUCK		1
6/11/2024	SCB315004053	SC	A002630	SC	TRUCK TRACTOR		1
Unsafe Driving Violation: 392.2LV Lane Restriction violation						3
6/7/2024	SCO322002241	SC	P836981	SC	STRAIGHT TRUCK		1
5/7/2024	SCF394000047	SC	P766406	SC	TRUCK TRACTOR		1
4/25/2024	SCF379000574	SC	P774493	SC	STRAIGHT TRUCK		1
4/2/2024	SCR378000765	SC	P683758	SC	STRAIGHT TRUCK		1
Vehicle Maint. Violation: 393.78 Wipers - Inoperative / missing / damaged wipers						1
Vehicle Maint. Violation: 393.75(a)(3) Tire-flat and/or audible air leak (OOS)						8 + 2 (OOS)
Vehicle Maint. Violation: 393.9 Inoperable Required Lamp						2
3/27/2024	SCR378000754	SC	P506375	SC	STRAIGHT TRUCK		1
3/21/2024	SCR378000748	SC	P676626	SC	STRAIGHT TRUCK		1
Vehicle Maint. Violation: 393.9 Inoperable Required Lamp						2
2/28/2024	SCS328000795	SC	P676676	SC	STRAIGHT TRUCK		1
2/21/2024	SCD149006657	SC	P855366	SC	TRUCK TRACTOR		1
2/20/2024	SCJ233006530	SC	P676676	SC	STRAIGHT TRUCK		1
2/1/2024	GA1377000087	GA	P768001	SC	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.100B-C Cargo - Cargo not secured to prevent leaking/spilling/blowing/falling from CMV (OOS)						7 + 2 (OOS)
Vehicle Maint. Violation: 393.205C-WRAWFLMIB Wheel/Rim - Any wheel fasteners loose/missing/ineffective/broken.						2
Vehicle Maint. Violation: 393.203C-CBP Cab and Body Parts - Hood not securely fastened						2
1/18/2024	SCL365001561	SC	P855366	SC	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.75(a) Flat tire or fabric exposed (OOS)						8 + 2 (OOS)
Vehicle Maint. Violation: 393.9 Inoperable Required Lamp						2
Vehicle Maint. Violation: 393.78 Wipers - Inoperative / missing / damaged wipers						1
12/28/2023	SCH301002695	SC	P506374	SC	STRAIGHT TRUCK		1

Reviewed-Not Preventable Crash Activity (vehicles involved in crashes)

Total Number of Crashes: 0

This carrier has no crashes to display.

Crashes Included in SMS (vehicles involved in crashes)

Total Number of Crashes: 2


Report			Vehicle		Crash				Measure = Sum of the Total Weight (TotW)
Date	Number	State	Plate Number	Plate State	Fatal	Inj.	Tow.	HM	Severity Weight (SW)	Time Weight (TiW)	Total Weight (TotW)

6/26/2025	SC0025257983	SC	P832002	SC	0	0	Yes	No	1	3	3
8/19/2024	SC0024266187	SC	P782950	SC	0	0	Yes	No	1	1	1

Investigation Results

Acute/Critical Violations: 0

This carrier has no Acute/Critical violations to display.

Summary of Activities

The summary includes information on the 5 most recent investigations and 24 months of inspections and crash history.

Most Recent Investigation: 4/11/2017 (Non-Ratable Review)
Total Inspections: 89
- Total Inspections without Violations used in SMS: 70
- Total Inspections with Violations used in SMS: 19
Total Crashes* : 2

*Crashes listed represent a motor carrier’s involvement in reportable crashes, regardless of the carrier’s or driver’s role in the crash. Continue for details.

Continue for more Crash, Inspection & Investigation Details

Carrier Registration

Carrier Registration Details Subject to General Threshold Update Registration Info

Enforcement Cases

(Six years as of 01/31/2026 updated monthly from FMCSA )

No penalties found

Tools/Resources

SMS Methodology How to Improve Request a Data Review

For U.S. DOT# 1905971

Complete SMS Profile Carrier History Downloads

Summary of Activities (as of 12/26/2025, updated monthly)

The summary includes information on the 5 most recent investigations and 24 months of inspections and crash history.

Most Recent Investigation: 4/11/2017 (Non-Ratable Review)	Total Inspections: 89 Total inspections without violations used in SMS: 70 Total inspections with violations used in SMS: 19	Total Crashes: 2*
4/11/2017 (Non-Ratable Review)	# Insp. OOS Driver Inspections 89 0.0% Vehicle Inspections 20 50.0% Placardable HM Inspections 0 0.0% % Placardable HM Inspections 0.0%	Fatal Crashes 0 Injury Crashes 0 Towaway Crashes 2

*Crashes listed represent a motor carrier’s involvement in reportable crashes, regardless of the carrier’s or driver’s role in the crash. Continue for details.

Downloads

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Average PU × Utilization Factor (as of 12/26/2025, updated monthly)

The SMS normalizes the Unsafe Driving and Crash Indicator BASICs measure by carrier size (i.e., a hybrid power unit and vehicle miles travelled measure) to account for exposure. Carrier size is defined as average power units multiplied by the utilization factor.

107.2 Average PU × Utilization Factor = 38 Average Power Units × 2.8197 Utilization Factor

Average Power Units
Utilization Factor

In order to account for changes in a carrier's fleet size during the previous 24 months an average power unit value is used in the calculation to determine a carrier's Unsafe Driving BASIC and Crash Indicator measures.

38 Average Power Units = 38 Current Power Units + 38 Power Units 6 Months Ago + 38 Power Units 18 Months Ago
3

The Utilization Factor is a multiplier that adjusted the average PU values based on the utilization in terms of VMT per average PU.

Determine Carrier Segment: Straight
Straight trucks/other vehicles constituting more than 30% of the total PU
U.S. DOT# 1905971 = 39% Straight trucks/other vehicles
Determine VMT per Average Power Unit
56,394 VMT per Average Power Unit = 2,143,000 VMT From Registration (MCS-150) ÷ 38 Average Power Units

Based on Step 1 and 2 calculate the Utilization Factor

Straight Segment
Meets Criteria	VMT per Avgerage PU	Utilization Factor
	< 20,000	1
	20,000 – 60,000	2.8197 = 56,394 VMT per PU ÷ 20,000
	60,000 – 200,000	3
	> 200,000	1
	No Recent VMT Information	1

Use of SMS Data/Information

FAST Act of 2015:

Readers should not draw conclusions about a carrier's overall safety condition simply based on the data displayed in this system. Unless a motor carrier has received an UNSATISFACTORY safety rating under part 385 of title 49, Code of Federal Regulations, or has otherwise been ordered to discontinue operations by the Federal Motor Carrier Safety Administration, it is authorized to operate on the Nation's roadways.

Safety Measurement System:

The data in the Safety Measurement System (SMS) is performance data used by the Agency and Enforcement Community. A symbol, based on that data, indicates that FMCSA may prioritize a motor carrier for further monitoring.

The symbol is not intended to imply any federal safety rating of the carrier pursuant to 49 USC 31144. Readers should not draw conclusions about a carrier's overall safety condition simply based on the data displayed in this system. Unless a motor carrier in the SMS has received an UNSATISFACTORY safety rating pursuant to 49 CFR Part 385, or has otherwise been ordered to discontinue operations by the FMCSA, it is authorized to operate on the nation's roadways.

Motor carrier safety ratings are available at http://safer.fmcsa.dot.gov and motor carrier licensing and insurance status are available at http://li-public.fmcsa.dot.gov/.