Safety Measurement System - Complete SMS Profile (U.S. DOT# 511577)

EARL E PRESTON JR INC

U.S. DOT#: 511577

Number of Vehicles: 19
Number of Drivers: 19
Number of Inspections: 13

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
0.26 Measure	Not Public	0 Measure	6.44 Measure	0 Measure	Not Public	1.57 Measure
On-Road Performance Detail
Driver Inspections with Unsafe Driving Violations: 1 Safety Event Group: No Safety Event Grouping Avg. PU × UF: 19 Segment: Straight Carrier	Not Public	Driver Inspections: 13 with HOS Compliance Violations: 0 Safety Event Group: 11-20 relevant driver inspections	Vehicle Inspections: 12 with Vehicle Maint. Violations: 5 Safety Event Group: 11-20 relevant vehicle inspections	Driver Inspections: 13 with Drugs/Alcohol Violations: 0 Safety Event Group: No Safety Event Grouping	Not Public	Driver Inspections: 13 with Driver Fitness Violations: 1 Safety Event Group: 11-20 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: 15


Violations	Description	# Violations	# OOS Violations	Violation Severity Weight	BASIC

392.2C	Failure to obey traffic control device	1	0	5	Unsafe Driving
383.23A2-LCDLN	License (CDL) - Operate a CMV and does not possess a valid CDL	1	1	8	Driver Fitness
393.41	No or defective parking brake system on CMV	1	1	4	Vehicle Maint.
393.43DBMA	Brake - Breakaway not attached to the towing vehicle	2	2	4	Vehicle Maint.
393.9	Inoperable Required Lamp	1	0	2	Vehicle Maint.
393.95A1	Emergency Equipment - Fire Extinguishers - no fire extinguisher present or not properly rated.	2	0	2	Vehicle Maint.
393.95(f)	Emergency Equipment - Stopped vehicle warning devices missing or improper	2	0	2	Vehicle Maint.
393.9A-LFTSI	Lighting - Front - Turn signal - inoperative	1	0	6	Vehicle Maint.
393.9A-LHLI	Lighting - Headlamp(s) - Any inoperative	1	0	6	Vehicle Maint.
393.9A-LHWS	Lighting - Hazard warning signal(s) inoperative	1	0	6	Vehicle Maint.
393.9(a)	Inoperative Brake Lamps	1	0	6	Vehicle Maint.
393.9TS	Inoperative turn signal	1	1	6	Vehicle Maint.

Inspection History

Total Inspections: 13


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

2/4/2026	MD2329C00412	MD	8EG2835	MD	STRAIGHT TRUCK		3
Vehicle Maint. Violation: 393.43DBMA Brake - Breakaway not attached to the towing vehicle (OOS)						4 + 2 (OOS)
Vehicle Maint. Violation: 393.95(f) Emergency Equipment - Stopped vehicle warning devices missing or improper						2
Vehicle Maint. Violation: 393.95A1 Emergency Equipment - Fire Extinguishers - no fire extinguisher present or not properly rated.						2
12/9/2025	MD0295C01116	MD	2GH6371	MD	STRAIGHT TRUCK		3
Vehicle Maint. Violation: 393.95(f) Emergency Equipment - Stopped vehicle warning devices missing or improper						2
Vehicle Maint. Violation: 393.43DBMA Brake - Breakaway not attached to the towing vehicle (OOS)						4 + 2 (OOS)
Driver Fitness Violation: 383.23A2-LCDLN License (CDL) - Operate a CMV and does not possess a valid CDL (OOS)						8 + 2 (OOS)
11/11/2025	MD2018C00452	MD	9CX4098	MD	STRAIGHT TRUCK		2
Vehicle Maint. Violation: 393.95A1 Emergency Equipment - Fire Extinguishers - no fire extinguisher present or not properly rated.						2
Vehicle Maint. Violation: 393.9A-LHWS Lighting - Hazard warning signal(s) inoperative						6
Vehicle Maint. Violation: 393.9A-LFTSI Lighting - Front - Turn signal - inoperative						6
7/16/2025	MD2379C00209	MD	9DL5632	MD	STRAIGHT TRUCK		2
Vehicle Maint. Violation: 393.9A-LHLI Lighting - Headlamp(s) - Any inoperative						6
3/17/2025	MD2064007555	MD	166ED43	MD	STRAIGHT TRUCK		1
10/11/2024	MD2064007278	MD	166ED43	MD	STRAIGHT TRUCK		1
10/7/2024	MD2064007258	MD	293ED69	MD	STRAIGHT TRUCK		1
9/23/2024	MD0228007193	MD	293ED69	MD	STRAIGHT TRUCK		1
8/27/2024	MD2410001060	MD	330ED71	MD	STRAIGHT TRUCK		1
8/16/2024	MD3095004984	MD	1FE9526	MD	STRAIGHT TRUCK		1
7/30/2024	MD0246006241	MD	3BX5603	MD	STRAIGHT TRUCK		1
Vehicle Maint. Violation: 393.9(a) Inoperative Brake Lamps						6
Vehicle Maint. Violation: 393.9 Inoperable Required Lamp						2
Vehicle Maint. Violation: 393.41 No or defective parking brake system on CMV (OOS)						4 + 2 (OOS)
Unsafe Driving Violation: 392.2C Failure to obey traffic control device						5
Vehicle Maint. Violation: 393.9TS Inoperative turn signal (OOS)						6 + 2 (OOS)
6/24/2024	MD2064007050	MD	166ED43	MD	STRAIGHT TRUCK		1
5/15/2024	MD0530003470	MD	330ED71	MD	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: 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: 13
- Total Inspections without Violations used in SMS: 8
- Total Inspections with Violations used in SMS: 5
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

Flags

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 06/27/2026 updated monthly from FMCSA )

No penalties found

Tools/Resources

SMS Methodology How to Improve Request a Data Review

For U.S. DOT# 511577

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: 13 Total inspections without violations used in SMS: 8 Total inspections with violations used in SMS: 5	Total Crashes: 0*
	# Insp. OOS Driver Inspections 13 7.7% Vehicle Inspections 12 25.0% 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

Select a focus and file type to download SMS data.

Focus:
File Type:

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: Straight
Straight trucks/other vehicles constituting more than 30% of the total PU
U.S. DOT# 511577 = 94% Straight trucks/other vehicles
Determine VMT per Average Power Unit
7,894 VMT per Average Power Unit = 150,000 VMT From Registration (MCS-150) ÷ 19 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	1 = 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/.