Safety Measurement System - Complete SMS Profile (U.S. DOT# 177997)

DD ENTERPRISES INC

DBA: BELTWAY TRANSPORTATION SERVICE

U.S. DOT#: 177997

Address: 8016 MARLBORO PIKE
FORESTVILLE, MD 20747
Number of Vehicles: 24
Number of Drivers: 25
Number of Inspections: 95

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 May 15, 2026

On-Road Performance
0 Measure 0% Percentile	Not Public	0 Measure 0% Percentile	0.27 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: 0 Safety Event Group: No Safety Event Grouping Avg. PU × UF: 22.7 Segment: Straight Carrier	Not Public	Driver Inspections: 8 with HOS Compliance Violations: 0 Safety Event Group: 3-10 relevant driver inspections	Vehicle Inspections: 95 with Vehicle Maint. Violations: 4 Safety Event Group: 21-100 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

393.47A-BCFSHE	Hydraulic/Electric Brake - Contaminated friction surface	1	0	4	Vehicle Maint.
393.47A-BCLMHE	Hydraulic/Electric Brake - Cracked/loose/missing lining/pad.	1	0	4	Vehicle Maint.
393.47A-BRC	Brake - Rotor (disc) with a crack in length of more than 75% of the friction surface or thru the rotor	1	1	4	Vehicle Maint.
393.62-BENM	Buses - Required emergency exit not properly marked. (does not convey message)	1	1	1	Vehicle Maint.

Inspection History

Total Inspections: 95


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

1/23/2026	MD2043C00572	MD	039P08	MD	BUS		3
12/31/2025	MD6522C00916	MD	039P09	MD	BUS		3
12/31/2025	MD6523C00561	MD	049P34	MD	BUS		3
12/31/2025	MD6522C00914	MD	039P83	MD	BUS		3
12/31/2025	MD6522C00915	MD	051P12	MD	BUS		3
Vehicle Maint. Violation: 393.47A-BCLMHE Hydraulic/Electric Brake - Cracked/loose/missing lining/pad.						4
12/31/2025	MD6523C00562	MD	039P82	MD	STRAIGHT TRUCK		3
12/31/2025	MD6523C00560	MD	022P37	MD	BUS		3
12/31/2025	MD6522C00913	MD	039P08	MD	BUS		3
12/30/2025	MD6522C00912	MD	039P07	MD	BUS		3
12/30/2025	MD6522C00911	MD	039P81	MD	BUS		3
12/30/2025	MD6522C00909	MD	040P93	MD	MOTOR COACH		3
12/30/2025	MD6522C00910	MD	049P32	MD	MOTOR COACH		3
12/30/2025	MD6523C00557	MD	024P00	MD	BUS		3
12/30/2025	MD6523C00558	MD	049P33	MD	BUS		3
12/30/2025	MD6523C00559	MD	044P80	MD	BUS		3
12/29/2025	MD6522C00907	MD	025P88	MD	MOTOR COACH		3
12/29/2025	MD6522C00905	MD	040P94	MD	BUS		3
12/29/2025	MD6522C00908	MD	049P35	MD	MOTOR COACH		3
Vehicle Maint. Violation: 393.62-BENM Buses - Required emergency exit not properly marked. (does not convey message) (OOS)						1 + 2 (OOS)
12/29/2025	MD6522C00906	MD	040P70	MD	MOTOR COACH		3
Vehicle Maint. Violation: 393.47A-BRC Brake - Rotor (disc) with a crack in length of more than 75% of the friction surface or thru the rotor (OOS)						4 + 2 (OOS)
12/29/2025	MD6523C00553	MD	027P03	MD	BUS		3
12/29/2025	MD6523C00554	MD	039P80	MD	BUS		3
12/29/2025	MD6523C00556	MD	051P13	MD	BUS		3
12/29/2025	MD6523C00555	MD	053P31	MD	BUS		3
11/18/2025	DC4652000622	DC	039P80	MD	BUS		3
10/15/2025	MD6522C00705	MD	QT62XH1	TN	BUS		2
7/18/2025	MD6502C00118	MD	027P03	MD	BUS		2
Vehicle Maint. Violation: 393.47A-BCFSHE Hydraulic/Electric Brake - Contaminated friction surface						4
7/18/2025	MD6502C00123	MD	022P37	MD	BUS		2
7/18/2025	MD6502C00124	MD	039P81	MD	BUS		2
7/18/2025	MD6502C00122	MD	051P12	MD	BUS		2
7/18/2025	MD6502C00121	MD	039P08	MD	BUS		2
7/18/2025	MD6502C00120	MD	039P07	MD	BUS		2
7/18/2025	MD6502C00119	MD	051P13	MD	BUS		2
7/17/2025	MD6502C00111	MD	049P32	MD	MOTOR COACH		2
7/17/2025	MD6502C00113	MD	049P35	MD	MOTOR COACH		2
7/17/2025	MD6502C00112	MD	025P88	MD	MOTOR COACH		2
7/17/2025	MD6502C00116	MD	039P83	MD	BUS		2
7/17/2025	MD6502C00115	MD	040P70	MD	MOTOR COACH		2
7/17/2025	MD6502C00114	MD	040P93	MD	MOTOR COACH		2
7/17/2025	MD6502C00117	MD	044P80	MD	BUS		2
7/16/2025	MD6502C00105	MD	049P34	MD	BUS		2
7/16/2025	MD6502C00106	MD	039P80	MD	BUS		2
7/16/2025	MD6502C00109	MD	039P82	MD	BUS		2
7/16/2025	MD6502C00107	MD	044P81	MD	BUS		2
7/16/2025	MD6502C00103	MD	049P33	MD	BUS		2
7/16/2025	MD6502C00110	MD	039P09	MD	BUS		2
7/16/2025	MD6502C00108	MD	040P94	MD	BUS		2
7/16/2025	MD6502C00104	MD	024P00	MD	BUS		2
6/5/2025	DC4652000260	DC	039P07	MD	BUS		2
6/5/2025	DC4652000259	DC	039P80	MD	STRAIGHT TRUCK		2
4/3/2025	DC4652000119	DC	039P08	MD	BUS		1
1/31/2025	MD6523003510	MD	040P94	MD	BUS		1
1/31/2025	MD6523003511	MD	022P37	MD	BUS		1
1/31/2025	MD6523003512	MD	024P00	MD	BUS		1
1/31/2025	MD6523003513	MD	044P81	MD	BUS		1
1/31/2025	MD6523003514	MD	039P07	MD	BUS		1
1/31/2025	MD6523003515	MD	039P08	MD	BUS		1
1/31/2025	MD6523003516	MD	027P03	MD	BUS		1
1/31/2025	MD6523003517	MD	039P81	MD	BUS		1
1/30/2025	MD6523003503	MD	039P09	MD	BUS		1
1/30/2025	MD6523003504	MD	049P34	MD	BUS		1
1/30/2025	MD6523003505	MD	039P80	MD	BUS		1
1/30/2025	MD6523003506	MD	049P33	MD	BUS		1
1/30/2025	MD6523003507	MD	051P12	MD	BUS		1
1/30/2025	MD6523003508	MD	039P82	MD	BUS		1
1/30/2025	MD6523003509	MD	044P80	MD	BUS		1
1/29/2025	MD6523003500	MD	040P93	MD	MOTOR COACH		1
1/29/2025	MD6523003501	MD	039P83	MD	BUS		1
1/29/2025	MD6523003502	MD	051P13	MD	BUS		1
1/29/2025	MD6523003497	MD	025P88	MD	MOTOR COACH		1
1/29/2025	MD6523003498	MD	040P70	MD	MOTOR COACH		1
1/29/2025	MD6523003499	MD	049P32	MD	MOTOR COACH		1
1/28/2025	MD6523003495	MD	049P35	MD	MOTOR COACH		1
8/27/2024	DC2739001473	DC	044P81	MD	BUS		1
8/19/2024	MD0273004892	MD	039P80	MD	BUS		1
8/2/2024	MD6502004885	MD	044P80	MD	BUS		1
8/2/2024	MD6502004886	MD	044P81	MD	BUS		1
8/2/2024	MD6502004887	MD	022P37	MD	BUS		1
8/2/2024	MD6502004888	MD	039P08	MD	BUS		1
8/2/2024	MD6502004889	MD	039P81	MD	BUS		1
8/2/2024	MD6502004890	MD	039P09	MD	BUS		1
8/2/2024	MD6502004891	MD	039P82	MD	BUS		1
8/1/2024	MD6502004877	MD	040P94	MD	BUS		1
8/1/2024	MD6502004878	MD	049P33	MD	BUS		1
8/1/2024	MD6502004879	MD	039P83	MD	BUS		1
8/1/2024	MD6502004880	MD	024P00	MD	BUS		1
8/1/2024	MD6502004881	MD	027P03	MD	BUS		1
8/1/2024	MD6502004882	MD	027P03	MD	BUS		1
8/1/2024	MD6502004883	MD	07FN0Y	MO	BUS		1
8/1/2024	MD6502004884	MD	049P34	MD	BUS		1
7/31/2024	MD6502004871	MD	040P70	MD	MOTOR COACH		1
7/31/2024	MD6502004872	MD	040P93	MD	MOTOR COACH		1
7/31/2024	MD6502004873	MD	049P32	MD	MOTOR COACH		1
7/31/2024	MD6502004874	MD	049P35	MD	MOTOR COACH		1
7/31/2024	MD6502004875	MD	025P88	MD	MOTOR COACH		1
7/31/2024	MD6502004876	MD	039P08	MD	BUS		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: 3


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)

3/25/2026	MD26A1347827	MD	039P07	MD	0	1	No	No	2	3	6
5/20/2025	DC0025075000	DC	039P07	MD	0	0	Yes	No	1	2	2
9/15/2024	MD24S0003586	MD	039P09	MD	0	1	No	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: 1/7/2025 (Compliance Review)
Total Inspections: 95
- Total Inspections without Violations used in SMS: 91
- Total Inspections with Violations used in SMS: 4
Total 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.

Continue for more Crash, Inspection & Investigation Details

Carrier Registration

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 06/24/2026 updated monthly from FMCSA )

No penalties found

Tools/Resources

SMS Methodology How to Improve Request a Data Review

For U.S. DOT# 177997

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: 1/7/2025 (Compliance Review)	Total Inspections: 95 Total inspections without violations used in SMS: 91 Total inspections with violations used in SMS: 4	Total Crashes: 3*
1/7/2025 (Compliance Review) 2/25/2022 (Compliance Review) 5/2/2017 (Compliance Review) 5/24/2012 (Onsite Comprehensive Investigation) 4/12/2011 (Onsite Comprehensive Investigation)	# Insp. OOS Driver Inspections 8 0.0% Vehicle Inspections 95 2.1% Placardable HM Inspections 0 0.0% % Placardable HM Inspections 0.0%	Fatal Crashes 0 Injury Crashes 2 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.

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 = 24 Current Power Units + 22 Power Units 6 Months Ago + 22 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# 177997 = 79% Straight trucks/other vehicles
Determine VMT per Average Power Unit
15,196 VMT per Average Power Unit = 344,502 VMT From Registration (MCS-150) ÷ 22.7 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	1 = 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/.