Safety Measurement System - Complete SMS Profile (U.S. DOT# 55253)

A-C MOTOR EXPRESS LLC

U.S. DOT#: 55253

Address: 339 C BLISS ST
WEST SPRINGFIELD, MA 01089
Number of Vehicles: 42
Number of Drivers: 42
Number of Inspections: 25

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
0.63 Measure	Not Public	0 Measure	0.95 Measure	0 Measure	Not Public	0 Measure
On-Road Performance Detail
Driver Inspections with Unsafe Driving Violations: 4 Safety Event Group: 3-8 driver inspections with Unsafe Driving Violations Avg. PU × UF: 41 Segment: Combination Carrier	Not Public	Driver Inspections: 25 with HOS Compliance Violations: 0 Safety Event Group: 21-100 relevant driver inspections	Vehicle Inspections: 11 with Vehicle Maint. Violations: 2 Safety Event Group: 11-20 relevant vehicle inspections	Driver Inspections: 25 with Drugs/Alcohol Violations: 0 Safety Event Group: No Safety Event Grouping	Not Public	Driver Inspections: 25 with Driver Fitness Violations: 0 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: 7


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-SLLLR	State/Local Laws - Lane restriction violation	2	0	3	Unsafe Driving
392.2-SLLS4	State/Local Laws - Speeding 15 or more miles per hour over the speed limit	1	0	10	Unsafe Driving
392.2-SLLUP	State/Local Laws - Unlawfully parking /leaving vehicle on roadway	1	0	1	Unsafe Driving
393.55D1-B	Air Brake - ABS malfunction lamp defective on truck-tractor manufactured on or after March 1, 1997 and each single unit CMV on or after 1998.	1	0	4	Vehicle Maint.
393.75(a)	Flat tire or fabric exposed	1	1	8	Vehicle Maint.

Inspection History

Total Inspections: 25


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

4/7/2026	NYSPT3141781	NY	1AG34F	MA	TRUCK TRACTOR		3
Unsafe Driving Violation: 392.2-SLLUP State/Local Laws - Unlawfully parking /leaving vehicle on roadway						1
3/13/2026	NYSPG3060774	NY	1AB11S	MA	TRUCK TRACTOR		3
3/4/2026	NYSPG3060759	NY	2630A	MA	STRAIGHT TRUCK		3
Vehicle Maint. Violation: 393.55D1-B Air Brake - ABS malfunction lamp defective on truck-tractor manufactured on or after March 1, 1997 and each single unit CMV on or after 1998.						4
1/20/2026	VT51A0001572	VT	3484A	MA	TRUCK TRACTOR		3
1/16/2026	NYSPG3000337	NY	99756	MA	TRUCK TRACTOR		3
1/14/2026	US2098000005	US	1625B	MA	STRAIGHT TRUCK		3
1/14/2026	NYSPG3000330	NY	99756	MA	TRUCK TRACTOR		3
11/28/2025	CT3071A00836	CT	1625B	MA	STRAIGHT TRUCK		3
10/27/2025	CT0954000300	CT	1625B	MA	STRAIGHT TRUCK		2
9/2/2025	NYD102601015	NY	99756	MA	TRUCK TRACTOR		2
8/29/2025	NYSPG3090412	NY	99756	MA	TRUCK TRACTOR		2
7/16/2025	CT3081A00117	CT	2629A	MA	STRAIGHT TRUCK		2
5/30/2025	NYSPB3090478	NY	7647A	MA	TRUCK TRACTOR		2
5/19/2025	NYSPG3050362	NY	2630A	MA	STRAIGHT TRUCK		2
3/19/2025	MADO00000335	MA	7647A	MA	TRUCK TRACTOR		1
Unsafe Driving Violation: 392.16AD Driver - Failed to use seat belt while operating a CMV.						7
3/3/2025	MACW00003608	MA	7647A	MA	TRUCK TRACTOR		1
2/13/2025	MACY00003138	MA	98667	MA	TRUCK TRACTOR		1
1/22/2025	CT3032000114	CT	1625B	MA	STRAIGHT TRUCK		1
1/17/2025	MACD00008083	MA	5527A	MA	TRUCK TRACTOR		1
Unsafe Driving Violation: 392.2-SLLLR State/Local Laws - Lane restriction violation						3
Unsafe Driving Violation: 392.2-SLLS4 State/Local Laws - Speeding 15 or more miles per hour over the speed limit						10
1/17/2025	MACD00008084	MA	5470A	MA	TRUCK TRACTOR		1
Unsafe Driving Violation: 392.2-SLLLR State/Local Laws - Lane restriction violation						3
12/23/2024	NYSPG3060170	NY	2630A	MA	STRAIGHT TRUCK		1
9/23/2024	NYSPG3010053	NY	2630A	MA	STRAIGHT TRUCK		1
7/31/2024	NYD305500786	NY	3485A	MA	TRUCK TRACTOR		1
6/25/2024	CT0525000025	CT	7648A	MA	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.75(a) Flat tire or fabric exposed (OOS)						8 + 2 (OOS)
6/12/2024	MACP00004303	MA	2630A	MA	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: 4


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)

9/9/2025	MATBC0035871	MA	1AG63J	MA	0	3	Yes	No	2	2	4
1/8/2025	CT2500010725	CT	1AC85J	MA	0	0	Yes	No	1	1	1
12/13/2024	MATBC0034343	MA	5393A	MA	0	0	Yes	No	1	1	1
6/10/2024	MATBC0033289	MA	SM96572	MA	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:
Total Inspections: 25
- Total Inspections without Violations used in SMS: 19
- Total Inspections with Violations used in SMS: 6
Total Crashes* : 4

*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 07/08/2026 updated monthly from FMCSA )

No penalties found

Tools/Resources

SMS Methodology How to Improve Request a Data Review

For U.S. DOT# 55253

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: None	Total Inspections: 25 Total inspections without violations used in SMS: 19 Total inspections with violations used in SMS: 6	Total Crashes: 4*
	# Insp. OOS Driver Inspections 25 0.0% Vehicle Inspections 11 9.1% Placardable HM Inspections 0 0.0% % Placardable HM Inspections 0.0%	Fatal Crashes 0 Injury Crashes 1 Towaway Crashes 3

*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.

41 Average PU × Utilization Factor = 41 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.

41 Average Power Units = 42 Current Power Units + 38 Power Units 6 Months Ago + 43 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# 55253 = 90% Combination trucks/motor coach buses
Determine VMT per Average Power Unit
48,310 VMT per Average Power Unit = 1,980,712 VMT From Registration (MCS-150) ÷ 41 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/.