Safety Measurement System - Complete SMS Profile (U.S. DOT# 1237997)

RF LLC

DBA: ZIPP EXPRESS

U.S. DOT#: 1237997

Address: 13652 LAKEFRONT DRIVE
EARTH CITY, MO 63045
Number of Vehicles: 12
Number of Drivers: 16
Number of Inspections: 22

Safety Rating & OOS Rates AND Licensing and Insurance

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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
1.84 Measure	Not Public	0 Measure	4.88 Measure	0 Measure	Not Public	1.58 Measure
On-Road Performance Detail
Driver Inspections with Unsafe Driving Violations: 6 Safety Event Group: 5-8 driver inspections with Unsafe Driving Violations Avg. PU × UF: 35.8 Segment: Straight 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: 6 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: 3 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: 28


Violations	Description	# Violations	# OOS Violations	Violation Severity Weight	BASIC

392.16	Failing to use seat belt while operating a CMV	2	0	7	Unsafe Driving
392.16-D	Driver - Failed to use seat belt while operating a CMV	4	0	7	Unsafe Driving
392.82DUMT	Driver - Using a hand-held mobile telephone	1	0	10	Unsafe Driving
391.15A-LNCDLNSRW	Operating a non-CDL required commercial motor vehicle with driving privileges revoked, suspended, cancelled or otherwise disqualified. (391.15(a))	1	1	8	Driver Fitness
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	1	1	Driver Fitness
391.41(a)(1)	Operating a property-carrying vehicle without possessing a valid medical certificate - no previous history	1	0	1	Driver Fitness
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.	1	1	1	Driver Fitness
393.11	No or defective lighting devices or reflective material as required	1	0	3	Vehicle Maint.
393.11N	No retroreflective sheeting or reflex reflective materials as required for vehicles manufactured after December 1993	1	0	3	Vehicle Maint.
393.205C-WRAWFLMIB	Wheel/Rim - Any wheel fasteners loose/missing/ineffective/broken.	1	0	2	Vehicle Maint.
393.43A-TPV	Air Brake - Inoperable or missing tractor protection valve	1	1	4	Vehicle Maint.
393.45B2-B-AIR	Air Brake - Hose/tubing damaged or not secured	2	0	4	Vehicle Maint.
393.45D-B	Air Brake - Audible air leak at a proper connection	1	0	4	Vehicle Maint.
393.55D2-B	Air Brake - ABS malfunction lamp defective on truck-tractor manufactured on or after March 1, 2001 for towed vehicle.	1	0	4	Vehicle Maint.
393.55E-B	Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1, 1998	1	0	4	Vehicle Maint.
393.75A3-TAOL	Tires - All others, leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS	1	1	8	Vehicle Maint.
393.75C-TAOTD-LT2/32	Tires - Less than 2/32 inch tread depth	1	0	8	Vehicle Maint.
393.95(f)	Emergency Equipment - Stopped vehicle warning devices missing or improper	1	0	2	Vehicle Maint.
393.9A-LSLIWR	Lighting - Stop lamps - Both inoperative when required to be on	1	1	6	Vehicle Maint.
396.3A1-BALAC	Brake - Audible air leak from a brake chamber	2	0	4	Vehicle Maint.
396.5B-L	Lubrication - Oil or grease leak	2	0	3	Vehicle Maint.

Inspection History

Total Inspections: 22


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

4/17/2026	IL4292880470	IL	216004H	IL	STRAIGHT TRUCK		3
Vehicle Maint. Violation: 393.11 No or defective lighting devices or reflective material as required						3
Vehicle Maint. Violation: 393.11N No retroreflective sheeting or reflex reflective materials as required for vehicles manufactured after December 1993						3
3/9/2026	MO0410000613	MO	216006H	IL	STRAIGHT TRUCK		3
3/4/2026	IL5009220002	IL	220796H	IL	STRAIGHT TRUCK		3
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 (OOS)						1 + 2 (OOS)
Unsafe Driving Violation: 392.16 Failing to use seat belt while operating a CMV						7
2/5/2026	MOW171000670	MO	216004H	IL	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)
Driver Fitness Violation: 391.15A-LNCDLNSRW Operating a non-CDL required commercial motor vehicle with driving privileges revoked, suspended, cancelled or otherwise disqualified. (391.15(a)) (OOS)						8 + 2 (OOS)
7/30/2025	MO3698002024	MO	P1223923	IL	TRUCK TRACTOR		2
6/30/2025	MOW190000971	MO	216003H	IL	STRAIGHT TRUCK		2
5/6/2025	MOW152003859	MO	220796H	IL	STRAIGHT TRUCK		1
Unsafe Driving Violation: 392.16-D Driver - Failed to use seat belt while operating a CMV						7
4/18/2025	MOW119000716	MO	2910997	IN	TRUCK TRACTOR		1
3/24/2025	IL4182760525	IL	216006H	IL	STRAIGHT TRUCK		1
3/21/2025	MO3214000498	MO	36KR6M	MO	TRUCK TRACTOR		1
3/5/2025	MOW173000028	MO	3781014	IN	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.95(f) Emergency Equipment - Stopped vehicle warning devices missing or improper						2
Vehicle Maint. Violation: 393.45B2-B-AIR Air Brake - Hose/tubing damaged or not secured						4
Vehicle Maint. Violation: 393.45D-B Air Brake - Audible air leak at a proper connection						4
Vehicle Maint. Violation: 393.55D2-B Air Brake - ABS malfunction lamp defective on truck-tractor manufactured on or after March 1, 2001 for towed vehicle.						4
Vehicle Maint. Violation: 393.43A-TPV Air Brake - Inoperable or missing tractor protection valve (OOS)						4 + 2 (OOS)
Vehicle Maint. Violation: 396.3A1-BALAC Brake - Audible air leak from a brake chamber						4
Vehicle Maint. Violation: 393.75C-TAOTD-LT2/32 Tires - Less than 2/32 inch tread depth						8
Vehicle Maint. Violation: 396.5B-L Lubrication - Oil or grease leak						3
2/10/2025	MO5745001765	MO	216004H	IL	STRAIGHT TRUCK		1
1/23/2025	MO3854000567	MO	2910997	IN	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.55E-B Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1, 1998						4
Vehicle Maint. Violation: 396.5B-L Lubrication - Oil or grease leak						3
Vehicle Maint. Violation: 393.205C-WRAWFLMIB Wheel/Rim - Any wheel fasteners loose/missing/ineffective/broken.						2
12/19/2024	MOW152003665	MO	213373H	IL	STRAIGHT TRUCK		1
Unsafe Driving Violation: 392.16-D Driver - Failed to use seat belt while operating a CMV						7
12/10/2024	IL3998561868	IL	3818089	IN	STRAIGHT TRUCK		1
11/21/2024	KYCV42964903	KY	215114H	IL	STRAIGHT TRUCK		1
Unsafe Driving Violation: 392.16 Failing to use seat belt while operating a CMV						7
Driver Fitness Violation: 391.41(a)(1) Operating a property-carrying vehicle without possessing a valid medical certificate - no previous history						1
11/18/2024	MO8753000405	MO	2690962	IN	TRUCK TRACTOR		1
Unsafe Driving Violation: 392.16-D Driver - Failed to use seat belt while operating a CMV						7
10/17/2024	MOW011006566	MO	36KR7M	MO	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.9A-LSLIWR Lighting - Stop lamps - Both inoperative when required to be on (OOS)						6 + 2 (OOS)
Vehicle Maint. Violation: 393.45B2-B-AIR Air Brake - Hose/tubing damaged or not secured						4
8/28/2024	MO3725000843	MO	36KR6M	MO	TRUCK TRACTOR		1
Unsafe Driving Violation: 392.82DUMT Driver - Using a hand-held mobile telephone						10
Unsafe Driving Violation: 392.16-D Driver - Failed to use seat belt while operating a CMV						7
6/6/2024	US0591000060	US	36KR7M	MO	TRUCK TRACTOR		1
Vehicle Maint. Violation: 396.3A1-BALAC Brake - Audible air leak from a brake chamber						4
5/20/2024	MOW011006471	MO	3695691	IN	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.75A3-TAOL Tires - All others, leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS (OOS)						8 + 2 (OOS)
5/16/2024	IL3998691068	IL	211156H	IL	STRAIGHT TRUCK		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)

6/27/2024	MO0000109255	MO	3714911	IN	0	3	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: 6/25/2024 (Non-Ratable Review)
Total Inspections: 22
- Total Inspections without Violations used in SMS: 9
- Total Inspections with Violations used in SMS: 13
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

Enforcement Cases

(Six years as of 05/26/2026 updated monthly from FMCSA )

Closed Date Case #
8/6/2024 MO-2024-0124-US0591

Tools/Resources

SMS Methodology How to Improve Request a Data Review

For U.S. DOT# 1237997

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: 6/25/2024 (Non-Ratable Review)	Total Inspections: 22 Total inspections without violations used in SMS: 9 Total inspections with violations used in SMS: 13	Total Crashes: 1*
6/25/2024 (Non-Ratable Review) 7/16/2019 (Compliance Review) 3/31/2011 (Onsite Focused Investigation)	# Insp. OOS Driver Inspections 21 9.5% Vehicle Inspections 14 28.6% Placardable HM Inspections 0 0.0% % Placardable HM Inspections 0.0%	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 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.

35.8 Average PU × Utilization Factor = 13.7 Average Power Units × 2.6152 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.

13.7 Average Power Units = 12 Current Power Units + 12 Power Units 6 Months Ago + 17 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# 1237997 = 66% Straight trucks/other vehicles
Determine VMT per Average Power Unit
52,304 VMT per Average Power Unit = 715,000 VMT From Registration (MCS-150) ÷ 13.7 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	2.6152 = 52,304 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/.