Safety Measurement System - Complete SMS Profile (U.S. DOT# 40205)

FOX BUS LINES INC

DBA: SILVER FOX

U.S. DOT#: 40205

Address: 3 SILVER FOX DR
MILLBURY, MA 01529-4158
Number of Vehicles: 22
Number of Drivers: 38
Number of Inspections: 15

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 Passenger Carrier View)

Behavior Analysis & Safety Improvement Categories (BASICs) Based on a 24-month record ending August 28, 2026

On-Road Performance
0.44 Measure Less than 3 driver inspections with violations	Not Public	1.27 Measure Less than 3 driver inspections with violations	0.77 Measure Less than 5 vehicle inspections with violations	0 Measure 0% Percentile	Not Public	0 Measure 0% Percentile
On-Road Performance Detail
Driver Inspections with Unsafe Driving Violations: 1 Safety Event Group: No Safety Event Grouping Avg. PU × UF: 22.7 Segment: Combination Carrier	Not Public	Driver Inspections: 8 with HOS Compliance Violations: 1 Safety Event Group: 3-10 relevant driver inspections	Vehicle Inspections: 8 with Vehicle Maint. Violations: 2 Safety Event Group: 5-10 relevant vehicle inspections	Driver Inspections: 8 with Drugs/Alcohol Violations: 0 Safety Event Group: No Safety Event Grouping	Not Public	Driver Inspections: 8 with Driver Fitness Violations: 0 Safety Event Group: 5-10 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.

Carrier may be prioritized for an intervention action and roadside inspection. Denotes this carrier exceeds the FMCSA Intervention Threshold relative to its safety event grouping based upon roadside data and/or has been cited with one or more Acute/Critical Violations within the past 12 months during an investigation. Therefore, this carrier may be prioritized for an intervention action and roadside inspection.

Violation Summary

Violations: 4


Violations	Description	# Violations	# OOS Violations	Violation Severity Weight	BASIC

392.2-SLLML	State/Local Laws - Failure to maintain lane	1	0	5	Unsafe Driving
395.8A-HOSPVI	HOS (Passenger) - Failing to have a record of duty status using the method prescribed	1	1	5	HOS Compliance
393.45D-B	Air Brake - Audible air leak at a proper connection	1	0	4	Vehicle Maint.
396.5B-L	Lubrication - Oil or grease leak	1	0	3	Vehicle Maint.

Inspection History

Total Inspections: 15


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

11/29/2025	MADQ00002938	MA	BU18BBX	MA	MOTOR COACH		2
9/19/2025	MADQ00999944	MA	BU17BBW	MA	MOTOR COACH		2
9/10/2025	MADD00002544	MA	16BBW	MA	MOTOR COACH		2
Unsafe Driving Violation: 392.2-SLLML State/Local Laws - Failure to maintain lane						5
HOS Compliance Violation: 395.8A-HOSPVI HOS (Passenger) - Failing to have a record of duty status using the method prescribed (OOS)						5 + 2 (OOS)
6/28/2025	MADQ00002381	MA	BU16BBW	MA	MOTOR COACH		1
6/12/2025	MADQ00002320	MA	BU17BBW	MA	MOTOR COACH		1
5/29/2025	MADQ00002247	MA	BU18BBX	MA	MOTOR COACH		1
3/11/2025	MAZP00002348	MA	13ALF	MA	MOTOR COACH		1
Vehicle Maint. Violation: 393.45D-B Air Brake - Audible air leak at a proper connection						4
3/11/2025	MAZP00002349	MA	945535	MA	MOTOR COACH		1
2/27/2025	MAZP00002338	MA	1AC31E	MA	MOTOR COACH		1
2/27/2025	MAZP00002339	MA	92927	MA	MOTOR COACH		1
2/23/2025	MADQ00001903	MA	BU16BBW	MA	MOTOR COACH		1
2/13/2025	MAZP00002332	MA	16BBW	MA	MOTOR COACH		1
2/13/2025	MAZP00002333	MA	94544	MA	MOTOR COACH		1
2/13/2025	MAZP00002334	MA	94541	MA	MOTOR COACH		1
Vehicle Maint. Violation: 396.5B-L Lubrication - Oil or grease leak						3
2/13/2025	MADQ00001870	MA	BU17BBW	MA	MOTOR COACH		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: 2


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)

9/7/2025	MATBC0035806	MA	92927	MA	0	0	Yes	No	1	2	2
7/26/2025	MATBC0035625	MA	BU17BBW	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: 8/7/2025 (Non-Ratable Review)
Total Inspections: 15
- Total Inspections without Violations used in SMS: 12
- Total Inspections with Violations used in SMS: 3
Total Crashes* : 2

*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 Passenger 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 10/04/2026 updated monthly from FMCSA )

No penalties found

Tools/Resources

SMS Methodology How to Improve Request a Data Review

For U.S. DOT# 40205

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: 8/7/2025 (Non-Ratable Review)	Total Inspections: 15 Total inspections without violations used in SMS: 12 Total inspections with violations used in SMS: 3	Total Crashes: 2*
8/7/2025 (Non-Ratable Review) 8/23/2023 (Compliance Review) 3/10/2020 (Compliance Review) 3/3/2017 (Compliance Review) 5/5/2014 (Compliance Review)	# Insp. OOS Driver Inspections 8 12.5% Vehicle Inspections 8 0.0% Placardable HM Inspections 0 0.0% % Placardable HM Inspections 0.0%	Fatal Crashes 0 Injury Crashes 0 Towaway Crashes 2

*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 8/28/2026, 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.

22.7 Average PU × Utilization Factor = 22.7 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.

22.7 Average Power Units = 22 Current Power Units + 22 Power Units 6 Months Ago + 24 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# 40205 = 100% Combination trucks/motor coach buses
Determine VMT per Average Power Unit
56,094 VMT per Average Power Unit = 1,271,668 VMT From Investigation (MCS-151) ÷ 22.7 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/.