Safety Measurement System - Complete SMS Profile (U.S. DOT# 637791)

REX LEE SIEMER TRUCKING LLC

U.S. DOT#: 637791

Address: 14603 US HWY 65
MERCER, MO 64661-9705
Number of Vehicles: 17
Number of Drivers: 13
Number of Inspections: 13

Safety Rating & OOS Rates

(As of 12/13/2025 updated daily from SAFER )

SATISFACTORY

(Rating Date: 03/02/2004)

Out of Service Rates

Type	OOS %	National Avg %
Vehicle	33.3	23.2
Driver	8.3	6.4
Hazmat		4.4

Licensing and Insurance

(As of 12/13/2025 updated hourly from L&I )

Active For-Hire Authority
Type	Yes/No	MC#/MX#
Property	Yes	MC-384420
Passenger	No
Household Goods	No
Broker	No

BASIC Status (Public Property Carrier View)

Behavior Analysis & Safety Improvement Categories (BASICs) Based on a 24-month record ending November 28, 2025

On-Road Performance
1.33 Measure	Not Public	0.20 Measure	2.60 Measure	0 Measure	Not Public	1.25 Measure
On-Road Performance Detail
Driver Inspections with Unsafe Driving Violations: 3 Safety Event Group: 3-8 driver inspections with Unsafe Driving Violations Avg. PU × UF: 18 Segment: Combination Carrier	Not Public	Driver Inspections: 13 with HOS Compliance Violations: 1 Safety Event Group: 11-20 relevant driver inspections	Vehicle Inspections: 3 with Vehicle Maint. Violations: 3 Safety Event Group: No Safety Event Grouping	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

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Violation Summary

Violations: 8


Violations	Description	# Violations	# OOS Violations	Violation Severity Weight	BASIC

392.2FC	Following too close	1	0	5	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-SLLTCD	State/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g., safety offical, signal, sign, light, lane marking, other.	1	0	5	Unsafe Driving
395.8F01	Drivers record of duty status not current	1	0	5	HOS Compliance
383.23(a)(2)	Operating a CMV without a CDL	1	1	8	Driver Fitness
393.45(b)(2)	Brake hose or tubing chafing and/or kinking	1	1	4	Vehicle Maint.
393.60(d)	Windshield / Windows - Tinting permits less than 70% of light transmittance.	1	0	1	Vehicle Maint.
393.9A-LLPL	Lighting - License plate lamp inoperative.	1	0	2	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)

11/13/2025	KSHP02700563	KS	04KR5C	MO	TRUCK TRACTOR		3
Vehicle Maint. Violation: 393.9A-LLPL Lighting - License plate lamp inoperative						2
11/11/2025	WI2641008788	WI	04KR5C	MO	TRUCK TRACTOR		3
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
11/4/2025	IL4293230026	IL	21AS1S	MO	TRUCK TRACTOR		3
10/28/2025	IA000P13HZ0P	IA	71AS7T	MO	TRUCK TRACTOR		3
7/17/2025	IA000P142L74	IA	38AP8C	MO	TRUCK TRACTOR		3
Driver Fitness Violation: 383.23(a)(2) Operating a CMV without a CDL (OOS)						8 + 2 (OOS)
1/28/2025	IA000P165XPR	IA	39AP5C	MO	TRUCK TRACTOR		2
10/30/2024	KSHP03795413	KS	84AP5W	MO	TRUCK TRACTOR		1
8/6/2024	IA000P144SNP	IA	38AP8C	MO	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.45(b)(2) Brake hose or tubing chafing and/or kinking (OOS)						4 + 2 (OOS)
5/15/2024	MO0187000220	MO	21AS2S	MO	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.60(d) Windshield / Windows - Tinting permits less than 70% of light transmittance						1
5/3/2024	IA000P12X2MR	IA	06AS3L	MO	TRUCK TRACTOR		1
Unsafe Driving Violation: 392.2FC Following too close						5
5/3/2024	IA000P15DFGL	IA	06AS3L	MO	TRUCK TRACTOR		1
HOS Compliance Violation: 395.8F01 Drivers record of duty status not current						5
12/21/2023	IA000P16CTRK	IA	06AS3L	MO	TRUCK TRACTOR		1
12/4/2023	IL4127520321	IL	57AS6H	MO	TRUCK TRACTOR		1
Unsafe Driving Violation: 392.2-SLLS2 State/Local Laws - Speeding 6-10 miles per hour over the speed limit						4

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: 6/11/2020 (Non-Ratable Review)
Total Inspections: 13
- Total Inspections without Violations used in SMS: 5
- Total Inspections with Violations used in SMS: 8
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

Carrier Registration Details Subject to General Threshold Update Registration Info

Enforcement Cases

(Six years as of 12/13/2025 updated monthly from FMCSA )

No penalties found

Tools/Resources

SMS Methodology How to Improve Request a Data Review

For U.S. DOT# 637791

Complete SMS Profile Carrier History Downloads

Summary of Activities (as of 11/28/2025, updated monthly)

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

Most Recent Investigation: 6/11/2020 (Non-Ratable Review)	Total Inspections: 13 Total inspections without violations used in SMS: 5 Total inspections with violations used in SMS: 8	Total Crashes: 0*
6/11/2020 (Non-Ratable Review) 6/5/2018 (Non-Ratable Review) 9/8/2016 (Non-Ratable Review) 7/13/2015 (Onsite Focused Investigation) 2/14/2012 (Onsite Focused Investigation)	# Insp. OOS Driver Inspections 13 7.7% Vehicle Inspections 3 33.3% 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

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Average PU × Utilization Factor (as of 11/28/2025, 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.

18 Average PU × Utilization Factor = 18 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.

18 Average Power Units = 17 Current Power Units + 17 Power Units 6 Months Ago + 20 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# 637791 = 100% Combination trucks/motor coach buses
Determine VMT per Average Power Unit
48,871 VMT per Average Power Unit = 879,684 VMT From Registration (MCS-150) ÷ 18 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/.