Safety Measurement System - Complete SMS Profile (U.S. DOT# 1754213)

KEN HOCKERT

DBA: PROFESSIONAL MAINTENANCE SERVICES INC

U.S. DOT#: 1754213

Address: 5712 ASPEN RD
PRINCETON, MN 55371
Number of Vehicles: 4
Number of Drivers: 4
Number of Inspections: 3

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 September 25, 2026

On-Road Performance
3.75 Measure	Not Public	0 Measure	17.33 Measure	0 Measure	Not Public	3 Measure
On-Road Performance Detail
Driver Inspections with Unsafe Driving Violations: 1 Safety Event Group: No Safety Event Grouping Avg. PU × UF: 4 Segment: Straight Carrier	Not Public	Driver Inspections: 3 with HOS Compliance Violations: 0 Safety Event Group: 3-10 relevant driver inspections	Vehicle Inspections: 3 with Vehicle Maint. Violations: 3 Safety Event Group: No Safety Event Grouping	Driver Inspections: 3 with Drugs/Alcohol Violations: 0 Safety Event Group: No Safety Event Grouping	Not Public	Driver Inspections: 3 with Driver Fitness Violations: 3 Safety Event Group: No Safety Event Grouping
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: 17


Violations	Description	# Violations	# OOS Violations	Violation Severity Weight	BASIC

392.2-SLLTCD	State/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g., safety official, signal, sign, light, lane marking, other	1	0	5	Unsafe Driving
391.41APC	Medical (Certificate) - Operating a property-carrying vehicle without a valid medical certificate in possession or on file with the state drivers licensing agency when medical certification is required.	3	3	1	Driver Fitness
393.11A1-LSLM	Lighting - Stop lamps - Any missing.	1	0	6	Vehicle Maint.
393.11A1-LSML	Lighting - Side marker lamp(s) missing	1	0	2	Vehicle Maint.
393.11A1-LTSM	Lighting - Turn signal - Any missing on the rearmost vehicle.	1	1	6	Vehicle Maint.
393.40F-BNPB	Brake - Inoperative or missing parking/emergency brake on power unit	1	1	4	Vehicle Maint.
393.43D-B	Brake - Missing or inoperable breakaway braking system on a trailer(s) or converter dolly	3	3	4	Vehicle Maint.
393.48A-BI-TSA	Brake - Inoperative on a trailer steering axle	1	1	4	Vehicle Maint.
393.55B-B	Hydraulic Brake - ABS malfunction lamp defective on truck/bus manufactured on or after March 1, 1999	1	0	4	Vehicle Maint.
393.95A1	Emergency Equipment - Fire Extinguishers - no fire extinguisher present or not properly rated.	1	0	2	Vehicle Maint.
393.95(f)	Emergency Equipment - Stopped vehicle warning devices missing or improper	1	0	2	Vehicle Maint.
393.9A-LSLI	Lighting - Stop lamps - Any inoperative.	1	0	6	Vehicle Maint.
396.3A1-HCM	Hubs - Bearing cap, plug or filler plug missing or broken	1	1	2	Vehicle Maint.

Inspection History

Total Inspections: 3


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

9/3/2026	MN0546001163	MN	YNB0555	MN	STRAIGHT TRUCK		3
Vehicle Maint. Violation: 393.43D-B Brake - Missing or inoperable breakaway braking system on a trailer(s) or converter dolly (OOS)						4 + 2 (OOS)
Driver Fitness Violation: 391.41APC Medical (Certificate) - Operating a property-carrying vehicle without a valid medical certificate in possession or on file with the state drivers licensing agency (OOS)						1 + 2 (OOS)
Vehicle Maint. Violation: 393.9A-LSLI Lighting - Stop lamps - Any inoperative.						6
8/20/2026	MN0047000842	MN	PMY858	MN	STRAIGHT TRUCK		3
Vehicle Maint. Violation: 393.11A1-LTSM Lighting - Turn signal - Any missing on the rearmost vehicle. (OOS)						6 + 2 (OOS)
Vehicle Maint. Violation: 393.40F-BNPB Brake - Inoperative or missing parking/emergency brake on power unit (OOS)						4 + 2 (OOS)
Vehicle Maint. Violation: 393.11A1-LSML Lighting - Side marker lamp(s) missing						2
Vehicle Maint. Violation: 393.11A1-LSLM Lighting - Stop lamps - Any missing.						6
Driver Fitness Violation: 391.41APC Medical (Certificate) - Operating a property-carrying vehicle without a valid medical certificate in possession or on file with the state drivers licensing agency (OOS)						1 + 2 (OOS)
Vehicle Maint. Violation: 393.43D-B Brake - Missing or inoperable breakaway braking system on a trailer(s) or converter dolly (OOS)						4 + 2 (OOS)
Vehicle Maint. Violation: 396.3A1-HCM Hubs - Bearing cap, plug or filler plug missing or broken (OOS)						2 + 2 (OOS)
Vehicle Maint. Violation: 393.55B-B Hydraulic Brake - ABS malfunction lamp defective on truck/bus manufactured on or after March 1, 1999						4
Vehicle Maint. Violation: 393.48A-BI-TSA Brake - Inoperative on a trailer steering axle (OOS)						4 + 2 (OOS)
8/12/2026	MN1670001003	MN	DHR258	MN	STRAIGHT TRUCK		3
Driver Fitness Violation: 391.41APC Medical (Certificate) - Operating a property-carrying vehicle without a valid medical certificate in possession or on file with the state drivers licensing agency (OOS)						1 + 2 (OOS)
Vehicle Maint. Violation: 393.95A1 Emergency Equipment - Fire Extinguishers - no fire extinguisher present or not properly rated.						2
Vehicle Maint. Violation: 393.43D-B Brake - Missing or inoperable breakaway braking system on a trailer(s) or converter dolly (OOS)						4 + 2 (OOS)
Unsafe Driving Violation: 392.2-SLLTCD State/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g., safety official, signal, sign, light, lane marking, other						5
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: 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: 3
- Total Inspections without Violations used in SMS: 0
- Total Inspections with Violations used in SMS: 3
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

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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 11/06/2026 updated monthly from FMCSA )

No penalties found

Tools/Resources

SMS Methodology How to Improve Request a Data Review

For U.S. DOT# 1754213

Complete SMS Profile Carrier History Downloads

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

Most Recent Investigation: None	Total Inspections: 3 Total inspections without violations used in SMS: 0 Total inspections with violations used in SMS: 3	Total Crashes: 0*
	# Insp. OOS Driver Inspections 3 100.0% Vehicle Inspections 3 100.0% 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.

Average PU × Utilization Factor (as of 9/25/2026, 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.

4 Average PU × Utilization Factor = 4 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.

4 Average Power Units = 4 Current Power Units + 4 Power Units 6 Months Ago + 4 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# 1754213 = 50% Straight trucks/other vehicles
Determine VMT per Average Power Unit
0 VMT per Average Power Unit = 0 VMT From ÷ 4 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/.