Safety Measurement System - Complete SMS Profile (U.S. DOT# 4089319)

KNBO LLC

U.S. DOT#: 4089319

Address: 215 AMBER RIDGE LN
WALNUT, CA 91789
Number of Vehicles: 3
Number of Drivers: 3
Number of Inspections: 10

Safety Rating & OOS Rates AND Licensing and Insurance

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BASIC Status (Public Property Carrier View)

Behavior Analysis & Safety Improvement Categories (BASICs) Based on a 24-month record ending May 15, 2026

On-Road Performance
0 Measure	Not Public	2.38 Measure	9.70 Measure	0 Measure	Not Public	0 Measure
On-Road Performance Detail
Driver Inspections with Unsafe Driving Violations: 0 Safety Event Group: No Safety Event Grouping Avg. PU × UF: 2.3 Segment: Combination Carrier	Not Public	Driver Inspections: 8 with HOS Compliance Violations: 3 Safety Event Group: 3-10 relevant driver inspections	Vehicle Inspections: 9 with Vehicle Maint. Violations: 7 Safety Event Group: 5-10 relevant vehicle inspections	Driver Inspections: 8 with Drugs/Alcohol Violations: 0 Safety Event Group: No Safety Event Grouping	Not Public	Driver Inspections: 8 with Driver Fitness Violations: 0 Safety Event Group: 5-10 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: 23


Violations	Description	# Violations	# OOS Violations	Violation Severity Weight	BASIC

395.20BELDNV	HOS (ELD) - The ELD display screen is not viewable by an authorized official without entering the CMV	1	0	5	HOS Compliance
395.26(b)	Motor carrier failed to ensure that the ELD automatically recorded the required data elements.	1	0	1	HOS Compliance
395.30B1-ELDDFR	HOS (ELD) - Driver failing to review records and certify the accuracy of the information.	1	0	1	HOS Compliance
395.8E-HOSPD	HOS (Property) - No driver may make a false report in connection with a duty status. Explain	1	1	7	HOS Compliance
392.9A2-C	Cargo - Vehicle components or dunnage not secured	1	1	1	Vehicle Maint.
393.126	Failure to ensure intermodal container securement	1	1	1	Vehicle Maint.
393.205A-WRBH	Wheel/Rim - Cracks between two holes	1	1	2	Vehicle Maint.
393.207A-STBW	Suspension - Suspension connecting rod or tracking component assembly missing the rubber bushing or the rubber bushing is worn to the extent that the component can be moved by hand along the axis of the component	2	2	7	Vehicle Maint.
393.23-LEU	Lighting - All electrical systems on towed vehicle(s) inoperative due to no electrical connection (e.g., unplugged or loose pigtail)	1	1	2	Vehicle Maint.
393.45B2-B-AIR	Air Brake - Hose/tubing damaged or not secured	1	0	4	Vehicle Maint.
393.47A-BCFSBD	Drum Brake - Contaminated friction surface	1	1	4	Vehicle Maint.
393.55E-B	Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1, 1998	1	0	4	Vehicle Maint.
393.75(a)(3)	Tire-flat and/or audible air leak	1	1	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	1	1	8	Vehicle Maint.
393.75C-TAOTD-LT1/32	Tires - Less than 1/32 inch tread depth at 3 locations/2 adjacent tread grooves	1	0	8	Vehicle Maint.
393.75C-TAOTD-LT2/32	Tires - Less than 2/32 inch tread depth	2	0	8	Vehicle Maint.
393.78A-WS	Washers - Inoperative washing system.	1	0	1	Vehicle Maint.
393.9A-LBL	Lighting - Backup lamp inoperative	1	0	6	Vehicle Maint.
393.9A-LSLI	Lighting - Stop lamps - Any inoperative.	1	1	6	Vehicle Maint.
396.3(a)1BOS	Brake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination	1	1	0	Vehicle Maint.
396.5B-L	Lubrication - Oil or grease leak	1	0	3	Vehicle Maint.

Inspection History

Total Inspections: 10


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

1/30/2026	CANDUX001618	CA	XP67439	CA	TRUCK TRACTOR		3
Vehicle Maint. Violation: 393.9A-LBL Lighting - Backup lamp inoperative						6
1/30/2026	CANDUX001619	CA	YP17870	CA	TRUCK TRACTOR		3
11/3/2025	CANFD3000689	CA	YP77037	CA	TRUCK TRACTOR		2
Vehicle Maint. Violation: 393.9A-LSLI Lighting - Stop lamps - Any inoperative. (OOS)						6 + 2 (OOS)
Vehicle Maint. Violation: 393.55E-B Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1, 1998						4
9/22/2025	CANEAK002653	CA	YP77037	CA	TRUCK TRACTOR		2
Vehicle Maint. Violation: 392.9A2-C Cargo - Vehicle components or dunnage not secured (OOS)						1 + 2 (OOS)
Vehicle Maint. Violation: 396.3(a)1BOS Brake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination (OOS)						0 + 2 (OOS)
Vehicle Maint. Violation: 393.75C-TAOTD-LT2/32 Tires - Less than 2/32 inch tread depth						8
Vehicle Maint. Violation: 393.207A-STBW Suspension - 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)						7 + 2 (OOS)
Vehicle Maint. Violation: 393.205A-WRBH Wheel/Rim - Cracks between stud holes/hand holes (OOS)						2 + 2 (OOS)
Vehicle Maint. Violation: 396.5B-L Lubrication - Oil or grease leak						3
Vehicle Maint. Violation: 393.47A-BCFSBD Drum Brake - Contaminated friction surface (OOS)						4 + 2 (OOS)
Vehicle Maint. Violation: 393.45B2-B-AIR Air Brake - Hose/tubing damaged or not secured						4
Vehicle Maint. Violation: 393.75C-TAOTD-LT1/32 Tires - Less than 1/32 inch tread depth at 3 locations/2 adjacent tread grooves						8
8/28/2025	CANEAK002603	CA	YP77037	CA	TRUCK TRACTOR		2
HOS Compliance Violation: 395.30B1-ELDDFR HOS (ELD) - Driver failing to review records and certify the accuracy of the information.						1
HOS Compliance Violation: 395.8E-HOSPD HOS (Property) - No driver may make a false report in connection with a duty status. Explain (OOS)						7 + 2 (OOS)
7/16/2025	CAUFKN000679	CA	YP17870	CA	TRUCK TRACTOR		2
7/3/2025	CAND74010259	CA	YP77037	CA	TRUCK TRACTOR		2
HOS Compliance Violation: 395.20BELDNV HOS (ELD) - The ELD display screen is not viewable by an authorized official without entering the CMV						5
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: 393.75C-TAOTD-LT2/32 Tires - Less than 2/32 inch tread depth						8
1/23/2025	CAUEZF000287	CA	YP77037	CA	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.207A-STBW Suspension - 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)						7 + 2 (OOS)
12/30/2024	AZ6483000788	AZ	YP77037	CA	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.78A-WS Washers - Inoperative washing system.						1
Vehicle Maint. Violation: 393.23-LEU Lighting - All electrical systems on towed vehicle(s) inoperative due to no electrical connection (e.g., unplugged or loose pigtail) (OOS)						2 + 2 (OOS)
5/22/2024	CANE4V005286	CA	YP77037	CA	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.126 Failure to ensure intermodal container securement (OOS)						1 + 2 (OOS)
Vehicle Maint. Violation: 393.75(a)(3) Tire-flat and/or audible air leak (OOS)						8 + 2 (OOS)
HOS Compliance Violation: 395.26(b) Motor carrier failed to ensure that the ELD automatically recorded the required data elements.						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: 0

This carrier has no crashes to display.

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:
Total Inspections: 10
- Total Inspections without Violations used in SMS: 2
- Total Inspections with Violations used in SMS: 8
Total Crashes* : 0

*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

Inspection Selection System

Enforcement Cases

(Six years as of 06/07/2026 updated monthly from FMCSA )

No penalties found

Tools/Resources

SMS Methodology How to Improve Request a Data Review

For U.S. DOT# 4089319

Complete SMS Profile Carrier History Downloads

Summary of Activities (as of 5/15/2026, updated monthly)

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

Most Recent Investigation: None	Total Inspections: 10 Total inspections without violations used in SMS: 2 Total inspections with violations used in SMS: 8	Total Crashes: 0*
	# Insp. OOS Driver Inspections 8 12.5% Vehicle Inspections 9 66.7% Placardable HM Inspections 0 0.0% % Placardable HM Inspections 0.0%	Fatal Crashes 0 Injury Crashes 0 Towaway Crashes 0

*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 5/15/2026, 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.

2.3 Average PU × Utilization Factor = 2.3 Average Power Units × 1 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.

2.3 Average Power Units = 3 Current Power Units + 3 Power Units 6 Months Ago + 1 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: Combo
Combination trucks/motor coach buses constituting 70% or more of the total PU
U.S. DOT# 4089319 = 100% Combination trucks/motor coach buses
Determine VMT per Average Power Unit
36,480 VMT per Average Power Unit = 85,000 VMT From Registration (MCS-150) ÷ 2.3 Average Power Units

Based on Step 1 and 2 calculate the Utilization Factor

Combo Segment
Meets Criteria	VMT per Avgerage PU	Utilization Factor
	< 80,000	1
	80,000 – 160,000	1 + (VMT per PU − 80,000) ÷ 133,333
	160,000 – 200,000	1.6
	> 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/.