Safety Measurement System - Complete SMS Profile (U.S. DOT# 538919)

GLENN MACHINE WORKS INC

U.S. DOT#: 538919

Address: 734 HWY 45 S
COLUMBUS, MS 39701
Number of Vehicles: 40
Number of Drivers: 150
Number of Inspections: 11

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
0.25 Measure	Not Public	0 Measure	0.63 Measure	0 Measure	Not Public	0.05 Measure
On-Road Performance Detail
Driver Inspections with Unsafe Driving Violations: 1 Safety Event Group: No Safety Event Grouping Avg. PU × UF: 38.7 Segment: Combination Carrier	Not Public	Driver Inspections: 11 with HOS Compliance Violations: 0 Safety Event Group: 11-20 relevant driver inspections	Vehicle Inspections: 7 with Vehicle Maint. Violations: 2 Safety Event Group: 5-10 relevant vehicle inspections	Driver Inspections: 11 with Drugs/Alcohol Violations: 0 Safety Event Group: No Safety Event Grouping	Not Public	Driver Inspections: 11 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: 4


Violations	Description	# Violations	# OOS Violations	Violation Severity Weight	BASIC

392.2-SLLSWZ	State/Local Laws - Speeding work/construction zone	1	0	10	Unsafe Driving
391.41(a)	Operating a property-carrying vehicle without a valid medical certificate in possession or on file with the state drivers licensing agency. History of either failing to produce a medical certificate or having an expired medical certificate.	1	0	1	Driver Fitness
393.104(b)	Damaged securement system/tiedowns	1	0	1	Vehicle Maint.
393.9H	Inoperable head lamps	1	0	6	Vehicle Maint.

Inspection History

Total Inspections: 11


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

4/25/2026	MS6611999630	MS	A531895	MS	TRUCK TRACTOR		3
4/11/2026	MS5007014042	MS	A540331	MS	TRUCK TRACTOR		3
10/13/2025	LALARXS00232	LA	A531895	MS	TRUCK TRACTOR		2
9/12/2025	MS6620003298	MS	A540340	MS	TRUCK TRACTOR		2
9/6/2025	LALARIS01243	LA	A525846	MS	TRUCK TRACTOR		2
6/10/2025	LALARNS00582	LA	A525848	MS	TRUCK TRACTOR		2
3/11/2025	MS6620003105	MS	A540336	MS	TRUCK TRACTOR		1
Driver Fitness Violation: 391.41(a) Operating a property-carrying vehicle without a valid medical certificate in possession or on file with the state drivers licensing agency. History of either fail						1
Unsafe Driving Violation: 392.2-SLLSWZ State/Local Laws - Speeding work/construction zone						10
1/29/2025	MS6626401101	MS	A540327	MS	TRUCK TRACTOR		1
11/3/2024	LALAOU005226	LA	A540323	MS	TRUCK TRACTOR		1
10/6/2024	LALAOU005128	LA	525848	MS	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.9H Inoperable head lamps						6
6/18/2024	LALAPU001201	LA	A314460	MS	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.104(b) Damaged securement system/tiedowns						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)

3/30/2026	AL0006632584	AL	A540344	MS	0	0	Yes	No	1	3	3

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: 9/20/2007 (Compliance Review)
Total Inspections: 11
- Total Inspections without Violations used in SMS: 8
- 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 06/25/2026 updated monthly from FMCSA )

No penalties found

Tools/Resources

SMS Methodology How to Improve Request a Data Review

For U.S. DOT# 538919

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: 9/20/2007 (Compliance Review)	Total Inspections: 11 Total inspections without violations used in SMS: 8 Total inspections with violations used in SMS: 3	Total Crashes: 1*
9/20/2007 (Compliance Review) 8/30/2002 (Compliance Review)	# Insp. OOS Driver Inspections 11 0.0% Vehicle Inspections 7 0.0% 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 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.

38.7 Average PU × Utilization Factor = 38.7 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.

38.7 Average Power Units = 40 Current Power Units + 40 Power Units 6 Months Ago + 36 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# 538919 = 80% Combination trucks/motor coach buses
Determine VMT per Average Power Unit
15,518 VMT per Average Power Unit = 600,108 VMT From Registration (MCS-150) ÷ 38.7 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/.