Safety Measurement System - Complete SMS Profile (U.S. DOT# 1532101)

STEVEN R THERRIAN

DBA: SUPERIOR SERVICE TOWING

U.S. DOT#: 1532101

Address: 47082 HIGHWAY M-26
HOUGHTON, MI 49931
Number of Vehicles: 14
Number of Drivers: 8
Number of Inspections: 12

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
1.89 Measure	Not Public	0.58 Measure	3.55 Measure	0 Measure	Not Public	0 Measure
On-Road Performance Detail
Driver Inspections with Unsafe Driving Violations: 3 Safety Event Group: 3-4 driver inspections with Unsafe Driving Violations Avg. PU × UF: 24.8 Segment: Straight Carrier	Not Public	Driver Inspections: 12 with HOS Compliance Violations: 1 Safety Event Group: 11-20 relevant driver inspections	Vehicle Inspections: 6 with Vehicle Maint. Violations: 3 Safety Event Group: 5-10 relevant vehicle inspections	Driver Inspections: 12 with Drugs/Alcohol Violations: 0 Safety Event Group: No Safety Event Grouping	Not Public	Driver Inspections: 12 with Driver Fitness Violations: 0 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: 10


Violations	Description	# Violations	# OOS Violations	Violation Severity Weight	BASIC

392.16AD	Driver - Failed to use seat belt while operating a CMV.	1	0	7	Unsafe Driving
392.2-SLLS2	State/Local Laws - Speeding 6-10 miles per hour over the speed limit	1	0	4	Unsafe Driving
392.2-SLLS3	State/Local Laws - Speeding 11-14 miles per hour over the speed limit	1	0	7	Unsafe Driving
395.8A1-HOSP	HOS (Property) - Failing to have a record of duty status using the method prescribed	1	1	5	HOS Compliance
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.
393.47(e)	Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt	1	0	4	Vehicle Maint.
393.53B-B	Air Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate for wear	1	0	4	Vehicle Maint.
393.78	Wipers - Inoperative / missing / damaged wipers	1	0	1	Vehicle Maint.
393.93A-SBA	Seatbelts - Drivers seatbelt or passenger seatbelt (if equipped) - missing or defective	1	0	2	Vehicle Maint.
393.95(f)	Emergency Equipment - Stopped vehicle warning devices missing or improper	1	0	2	Vehicle Maint.

Inspection History

Total Inspections: 12


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

7/21/2026	MIDAWDD04640	MI	BE37099	MI	STRAIGHT TRUCK		3
6/22/2026	MIGENTC03360	MI	BD45665	MI	STRAIGHT TRUCK		3
Unsafe Driving Violation: 392.2-SLLS2 State/Local Laws - Speeding 6-10 miles per hour over the speed limit						4
2/13/2026	MIHARTD02276	MI	BD45665	MI	STRAIGHT TRUCK		3
Unsafe Driving Violation: 392.2-SLLS3 State/Local Laws - Speeding 11-14 miles per hour over the speed limit						7
12/12/2025	MIBROWP02861	MI	BC82688	MI	STRAIGHT TRUCK		2
11/13/2025	MIBROWP02811	MI	BD45665	MI	STRAIGHT TRUCK		2
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)
Vehicle Maint. Violation: 393.47(e) Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt						4
Vehicle Maint. Violation: 393.53B-B Air Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate for wear						4
9/17/2025	MIBROWP02685	MI	BE12464	MI	TRUCK TRACTOR		2
HOS Compliance Violation: 395.8A1-HOSP HOS (Property) - Failing to have a record of duty status using the method prescribed (OOS)						5 + 2 (OOS)
8/19/2025	MIOSHEE02637	MI	BE00566	MI	STRAIGHT TRUCK		2
Unsafe Driving Violation: 392.16AD Driver - Failed to use seat belt while operating a CMV.						7
8/18/2025	MIKIRKB05173	MI	BE00564	MI	STRAIGHT TRUCK		2
Vehicle Maint. Violation: 393.78 Wipers - Inoperative / missing / damaged wipers						1
Vehicle Maint. Violation: 393.93A-SBA Seatbelts - Drivers seatbelt or passenger seatbelt (if equipped) - missing or defective						2
8/7/2025	MIBYARC01447	MI	BD45665	MI	STRAIGHT TRUCK		2
5/14/2025	MIAHOBL01222	MI	BD45665	MI	STRAIGHT TRUCK		1
1/8/2025	WI2620000226	WI	BC82688	MI	STRAIGHT TRUCK		1
8/2/2024	WI2433004230	WI	BB98315	WI	STRAIGHT TRUCK		1
Vehicle Maint. Violation: 393.95(f) Emergency Equipment - Stopped vehicle warning devices missing or improper						2

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)

11/18/2024	MI0003353609	MI	BD90653	MI	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: 6/4/2020 (Non-Ratable Review)
Total Inspections: 12
- Total Inspections without Violations used in SMS: 5
- Total Inspections with Violations used in SMS: 7
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

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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 08/23/2026 updated monthly from FMCSA )

No penalties found

Tools/Resources

SMS Methodology How to Improve Request a Data Review

For U.S. DOT# 1532101

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: 6/4/2020 (Non-Ratable Review)	Total Inspections: 12 Total inspections without violations used in SMS: 5 Total inspections with violations used in SMS: 7	Total Crashes: 1*
6/4/2020 (Non-Ratable Review) 8/30/2018 (Non-Ratable Review)	# Insp. OOS Driver Inspections 12 8.3% Vehicle Inspections 6 16.7% Placardable HM Inspections 0 0.0% % Placardable HM Inspections 0.0%	Fatal Crashes 0 Injury Crashes 0 Towaway 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.

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.

24.8 Average PU × Utilization Factor = 13.3 Average Power Units × 1.8605 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.

13.3 Average Power Units = 14 Current Power Units + 14 Power Units 6 Months Ago + 12 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# 1532101 = 85% Straight trucks/other vehicles
Determine VMT per Average Power Unit
37,209 VMT per Average Power Unit = 496,000 VMT From Registration (MCS-150) ÷ 13.3 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	1.8605 = 37,209 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/.