Safety Measurement System - Complete SMS Profile (U.S. DOT# 427439)

DOLPHIN LINE INC

U.S. DOT#: 427439

Address: 4521 HIGGINS ROAD
MOBILE, AL 36619
Number of Vehicles: 1
Number of Drivers: 1
Number of Inspections: 21

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 July 31, 2026

On-Road Performance
0 Measure	Not Public	0 Measure	1.71 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: 10.7 Segment: Combination Carrier	Not Public	Driver Inspections: 21 with HOS Compliance Violations: 0 Safety Event Group: 21-100 relevant driver inspections	Vehicle Inspections: 14 with Vehicle Maint. Violations: 2 Safety Event Group: 11-20 relevant vehicle inspections	Driver Inspections: 21 with Drugs/Alcohol Violations: 0 Safety Event Group: No Safety Event Grouping	Not Public	Driver Inspections: 21 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: 5


Violations	Description	# Violations	# OOS Violations	Violation Severity Weight	BASIC

393.47A-BCFSAD-SA	Air Disc Brake - Contaminated friction surface on a steering axle	1	1	4	Vehicle Maint.
393.75(a)(3)	Tire-flat and/or audible air leak	1	1	8	Vehicle Maint.
396.5A-HNL	Hubs - No visible or measurable lubricant showing in the hub	1	1	2	Vehicle Maint.
396.5B-HWSL	Hubs - Wheel seal leaking	1	1	2	Vehicle Maint.
172.602C-HMER	HM (Emergency Response) - Improper maintenance/accessibility of emergency response information	1	0	3	HM Compliance

Inspection History

Total Inspections: 21


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

2/28/2025	MS6623301822	MS	3670793	IN	TRUCK TRACTOR		1
2/6/2025	FL3053009811	FL	3671081	IN	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.47A-BCFSAD-SA Air Disc Brake - Contaminated friction surface on a steering axle (OOS)						4 + 2 (OOS)
Vehicle Maint. Violation: 396.5A-HNL Hubs - No visible or measurable lubricant showing in the hub (OOS)						2 + 2 (OOS)
Vehicle Maint. Violation: 396.5B-HWSL Hubs - Wheel seal leaking (OOS)						2 + 2 (OOS)
2/4/2025	FL2883003011	FL	3670801	IN	TRUCK TRACTOR		1
12/19/2024	KYS172000289	KY	3671081	IN	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.75(a)(3) Tire-flat and/or audible air leak (OOS)						8 + 2 (OOS)
12/19/2024	MSMC00381108	MS	3670730	IN	TRUCK TRACTOR		1
12/18/2024	OKPE21001136	OK	P7305HY	TN	TRUCK TRACTOR		1
12/15/2024	MSMC00381096	MS	3671081	IN	TRUCK TRACTOR		1
12/13/2024	MS1029014504	MS	3970716	IN	TRUCK TRACTOR		1
12/12/2024	TXV241725896	TX	P7302HY	TN	TRUCK TRACTOR		1
12/10/2024	UT25TI001557	UT	3671081	IN	TRUCK TRACTOR		1
11/13/2024	FL3233008402	FL	3670794	IN	TRUCK TRACTOR		1
11/11/2024	UT25TE001660	UT	P7302HY	TN	TRUCK TRACTOR		1
11/8/2024	IL4069410869	IL	3670712	IN	TRUCK TRACTOR		1
11/5/2024	LALALZ006498	LA	P7305HY	TN	TRUCK TRACTOR		1
10/23/2024	OH3288000077	OH	3670801	IN	TRUCK TRACTOR		1
HM Compliance Violation: 172.602C-HMER HM (Emergency Response) - Improper maintenance/accessibility of emergency response information						3
10/21/2024	AL1218001558	AL	3670716	IN	TRUCK TRACTOR		1
10/7/2024	AL1925000857	AL	3670899	IN	TRUCK TRACTOR		1
9/25/2024	NM2434O7HJV9	NM	R7196HY	TN	TRUCK TRACTOR		1
9/13/2024	FL2034002417	FL	P7308HY	TN	TRUCK TRACTOR		1
9/9/2024	MS6619202056	MS	R7193HY	TN	TRUCK TRACTOR		1
8/16/2024	LALAOD003007	LA	R0813HY	TN	TRUCK TRACTOR		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: 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)

9/9/2024	MS9030240001	MS	R7193HY	TN	0	1	Yes	No	2	1	2

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: 11/30/2012 (Non-Ratable Review)
Total Inspections: 21
- Total Inspections without Violations used in SMS: 18
- Total Inspections with Violations used in SMS: 3
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 09/07/2026 updated monthly from FMCSA )

No penalties found

Tools/Resources

SMS Methodology How to Improve Request a Data Review

For U.S. DOT# 427439

Complete SMS Profile Carrier History Downloads

Summary of Activities (as of 7/31/2026, updated monthly)

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

Most Recent Investigation: 11/30/2012 (Non-Ratable Review)	Total Inspections: 21 Total inspections without violations used in SMS: 18 Total inspections with violations used in SMS: 3	Total Crashes: 1*
11/30/2012 (Non-Ratable Review) 8/14/2008 (CR And Security Contact Review) 3/23/2005 (Compliance Review) 12/8/2004 (Compliance Review) 11/12/2003 (Compliance Review)	# Insp. OOS Driver Inspections 21 0.0% Vehicle Inspections 14 14.3% Placardable HM Inspections 5 0.0% % Placardable HM Inspections 35.7%	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

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Average PU × Utilization Factor (as of 7/31/2026, 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.

10.7 Average PU × Utilization Factor = 10.7 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.

10.7 Average Power Units = 1 Current Power Units + 1 Power Units 6 Months Ago + 30 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# 427439 = 100% Combination trucks/motor coach buses
Determine VMT per Average Power Unit
4,628 VMT per Average Power Unit = 49,387 VMT From Registration (MCS-150) ÷ 10.7 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/.