Safety Measurement System - Complete SMS Profile (U.S. DOT# 302131)

DIAMONDBACK EXPRESS INC

DBA: DIAMON

U.S. DOT#: 302131

Address: 3546 N RIVERSIDE AVE
RIALTO, CA 92377
Number of Vehicles: 19
Number of Drivers: 14
Number of Inspections: 8

Safety Rating & OOS Rates AND Licensing and Insurance

As part of FMCSA’s IT modernization strategy, we are in the process of merging our data platforms to make it easier for you to find the information you need. During this transition, please refer to the links below for additional information about this carrier.

For licensing and insurance information, visit Motus: USDOT Registration System.
For safety rating and Out-of-Service (OOS) rates, visit SAFER.
If you are a motor carrier looking for your Inspection Selection System (ISS) value, log in to the FMCSA Portal.

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
0.36 Measure	Not Public	0.38 Measure	5.25 Measure	0 Measure	Not Public	0 Measure
On-Road Performance Detail
Driver Inspections with Unsafe Driving Violations: 1 Safety Event Group: No Safety Event Grouping Avg. PU × UF: 19 Segment: Combination Carrier	Not Public	Driver Inspections: 8 with HOS Compliance Violations: 1 Safety Event Group: 3-10 relevant driver inspections	Vehicle Inspections: 7 with Vehicle Maint. Violations: 5 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: 10


Violations	Description	# Violations	# OOS Violations	Violation Severity Weight	BASIC

392.2-SLLS3	State/Local Laws - Speeding 11-14 miles per hour over the speed limit	1	0	7	Unsafe Driving
395.20BELDNV	HOS (ELD) - The ELD display screen is not viewable by an authorized official without entering the CMV	1	0	5	HOS Compliance
393.100B-C	Cargo - Cargo not secured to prevent leaking/spilling/blowing/falling from CMV	1	1	7	Vehicle Maint.
393.110B2I-C	Cargo - Insufficient tiedowns (w/o headerboard/blocking) for article(s) of cargo 5 feet or less and more than 1,100 lbs	2	2	3	Vehicle Maint.
393.209E-SPSLA	Steering - Power steering leaking anywhere.	1	0	6	Vehicle Maint.
393.9A-LIL	Lighting - Identification lamp(s) inoperative	1	0	2	Vehicle Maint.
393.9A-LSLI	Lighting - Stop lamps - Any inoperative.	1	0	6	Vehicle Maint.
393.9A-LSLIWR	Lighting - Stop lamps - Both inoperative when required to be on	1	1	6	Vehicle Maint.
393.9A-LSML	Lighting - Side marker lamp(s) inoperative	1	0	2	Vehicle Maint.

Inspection History

Total Inspections: 8


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

1/13/2026	CAND74011019	CA	ZP46056	CA	TRUCK TRACTOR		3
Vehicle Maint. Violation: 393.100B-C Cargo - Cargo not secured to prevent leaking/spilling/blowing/falling from CMV (OOS)						7 + 2 (OOS)
11/17/2025	CAUESQ005512	CA	ZP15952	CA	TRUCK TRACTOR		3
7/30/2025	AZ1034701287	AZ	YP94608	CA	TRUCK TRACTOR		2
Vehicle Maint. Violation: 393.9A-LIL Lighting - Identification lamp(s) inoperative						2
5/13/2025	CAND74010077	CA	ZP46056	CA	TRUCK TRACTOR		1
3/25/2025	CAND74009882	CA	ZP46056	CA	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.209E-SPSLA Steering - Power steering leaking anywhere.						6
HOS Compliance Violation: 395.20BELDNV HOS (ELD) - The ELD display screen is not viewable by an authorized official without entering the CMV						5
1/17/2025	CANA7C002832	CA	ZP46056	CA	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.110B2I-C Cargo - Insufficient tiedowns (w/o headerboard/blocking) for article(s) of cargo 5 feet or less and more than 1,100 lbs (OOS)						3 + 2 (OOS)
1/7/2025	NV7088028460	NV	ZP46056	CA	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.9A-LSML Lighting - Side marker lamp(s) inoperative						2
Vehicle Maint. Violation: 393.9A-LSLIWR Lighting - Stop lamps - Both inoperative when required to be on (OOS)						6 + 2 (OOS)
Vehicle Maint. Violation: 393.9A-LSLI Lighting - Stop lamps - Any inoperative.						6
Vehicle Maint. Violation: 393.110B2I-C Cargo - Insufficient tiedowns (w/o headerboard/blocking) for article(s) of cargo 5 feet or less and more than 1,100 lbs (OOS)						3 + 2 (OOS)
8/14/2024	CAUDB7009635	CA	ZP37162	CA	TRUCK TRACTOR		1
Unsafe Driving Violation: 392.2-SLLS3 State/Local Laws - Speeding 11-14 miles per hour over the speed limit						7

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: 1


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)

12/19/2025	CA2522504891	CA	WP60324	CA	0	1	Yes	No	2	3	6

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: 8/13/1991 (Compliance Review)
Total Inspections: 8
- Total Inspections without Violations used in SMS: 2
- Total Inspections with Violations used in SMS: 6
Total Crashes* : 1

*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

For licensing and insurance information, visit Motus: USDOT Registration System.
For safety rating and Out-of-Service (OOS) rates, visit SAFER.
If you are a motor carrier looking for your Inspection Selection System (ISS) value, log in to the FMCSA Portal.

Enforcement Cases

(Six years as of 07/04/2026 updated monthly from FMCSA )

No penalties found

Tools/Resources

SMS Methodology How to Improve Request a Data Review

For U.S. DOT# 302131

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: 8/13/1991 (Compliance Review)	Total Inspections: 8 Total inspections without violations used in SMS: 2 Total inspections with violations used in SMS: 6	Total Crashes: 1*
8/13/1991 (Compliance Review) 3/9/1989 (Safety Review)	# Insp. OOS Driver Inspections 8 0.0% Vehicle Inspections 7 42.9% Placardable HM Inspections 0 0.0% % Placardable HM Inspections 0.0%	Fatal Crashes 0 Injury Crashes 1 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

Select a focus and file type to download SMS data.

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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.

19 Average PU × Utilization Factor = 19 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.

19 Average Power Units = 19 Current Power Units + 19 Power Units 6 Months Ago + 19 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# 302131 = 100% Combination trucks/motor coach buses
Determine VMT per Average Power Unit
30,590 VMT per Average Power Unit = 581,218 VMT From Registration (MCS-150) ÷ 19 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/.