Safety Measurement System - Complete SMS Profile (U.S. DOT# 32700)

KELLER TRANSPORTATION INC

DBA: KELLER BUS SERVICE

U.S. DOT#: 32700

Address: 4472 GALLANT GREEN RD
WALDORF, MD 20601
Number of Vehicles: 99
Number of Drivers: 64
Number of Inspections: 158

Safety Rating & OOS Rates AND Licensing and Insurance

As part of FMCSA’s IT modernization strategy, we are merging our data platforms to make it easier for you to find the information you need. For safety rating, Out-of-Service (OOS) rates, and licensing and insurance information, visit Motus, the FMCSA Registration and Management system.

BASIC Status (Public Passenger Carrier View)

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

On-Road Performance
0 Measure 0% Percentile	Not Public	0 Measure 0% Percentile	0.13 Measure 1% Percentile	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: 108 Segment: Straight Carrier	Not Public	Driver Inspections: 9 with HOS Compliance Violations: 0 Safety Event Group: 3-10 relevant driver inspections	Vehicle Inspections: 158 with Vehicle Maint. Violations: 7 Safety Event Group: 101-500 relevant vehicle inspections	Driver Inspections: 9 with Drugs/Alcohol Violations: 0 Safety Event Group: No Safety Event Grouping	Not Public	Driver Inspections: 9 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: 7


Violations	Description	# Violations	# OOS Violations	Violation Severity Weight	BASIC

393.45D-BAAL	Air Brake - Audible air leak at other than a proper connection	1	0	4	Vehicle Maint.
393.91-BU	Buses - Seats not secured/loose or equipped with improper aisle seats	1	0	2	Vehicle Maint.
393.9A-LHLI	Lighting - Headlamp(s) - Any inoperative	1	0	6	Vehicle Maint.
396.5B-L	Lubrication - Oil or grease leak	4	0	3	Vehicle Maint.

Inspection History

Total Inspections: 158


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

4/21/2026	MD2043C00753	MD	052P82	MD	MOTOR COACH		3
4/15/2026	MD0266C00654	MD	046P84	DC	MOTOR COACH		3
Vehicle Maint. Violation: 393.91-BU Buses - Seats not secured/loose or equipped with improper aisle seats						2
8/7/2025	DC4652000428	DC	046P84	MD	BUS		2
8/4/2025	DC2597001597	DC	046P83	MD	BUS		2
8/4/2025	DC2597001598	DC	048P77	MD	BUS		2
7/15/2025	MD6523C00193	MD	034P74	MD	MOTOR COACH		2
7/15/2025	MD6523C00200	MD	035P92	MD	MOTOR COACH		2
7/15/2025	MD6523C00197	MD	048P80	MD	MOTOR COACH		2
7/15/2025	MD6523C00198	MD	046P76	MD	MOTOR COACH		2
7/15/2025	MD6523C00199	MD	035P91	MD	MOTOR COACH		2
7/15/2025	MD6523C00196	MD	046P72	MD	MOTOR COACH		2
7/15/2025	MD6523C00195	MD	048P78	MD	MOTOR COACH		2
7/15/2025	MD6523C00194	MD	040P14	MD	MOTOR COACH		2
7/14/2025	MD6523C00192	MD	H6989C	MD	SCHOOL BUS		2
7/14/2025	MD6523C00185	MD	H7705C	MD	SCHOOL BUS		2
7/14/2025	MD6523C00187	MD	H7713C	MD	SCHOOL BUS		2
7/14/2025	MD6523C00186	MD	048P79	MD	MOTOR COACH		2
7/14/2025	MD6523C00188	MD	H7719C	MD	SCHOOL BUS		2
7/14/2025	MD6523C00190	MD	H7722C	MD	SCHOOL BUS		2
7/14/2025	MD6523C00189	MD	H7720C	MD	SCHOOL BUS		2
7/14/2025	MD6523C00191	MD	H7712C	MD	SCHOOL BUS		2
7/11/2025	MD6523C00184	MD	040P13	MD	MOTOR COACH		2
7/11/2025	MD6523C00177	MD	046P81	MD	MOTOR COACH		2
7/11/2025	MD6523C00178	MD	046P82	MD	BUS		2
7/11/2025	MD6523C00181	MD	050P85	MD	MOTOR COACH		2
7/11/2025	MD6523C00179	MD	048P81	MD	MOTOR COACH		2
7/11/2025	MD6523C00180	MD	045P71	MD	MOTOR COACH		2
7/11/2025	MD6523C00182	MD	038P32	MD	MOTOR COACH		2
7/11/2025	MD6523C00183	MD	040P10	MD	MOTOR COACH		2
7/10/2025	MD6523C00170	MD	049P14	MD	MOTOR COACH		2
7/10/2025	MD6523C00171	MD	049P13	MD	MOTOR COACH		2
7/10/2025	MD6523C00172	MD	050P86	MD	MOTOR COACH		2
7/10/2025	MD6523C00174	MD	035P95	MD	MOTOR COACH		2
7/10/2025	MD6523C00173	MD	050P87	MD	MOTOR COACH		2
7/10/2025	MD6523C00176	MD	033P37	MD	MOTOR COACH		2
7/10/2025	MD6523C00175	MD	035P93	MD	MOTOR COACH		2
7/9/2025	MD6523C00164	MD	046P71	MD	MOTOR COACH		2
7/9/2025	MD6523C00168	MD	034P75	MD	MOTOR COACH		2
7/9/2025	MD6523C00163	MD	046P74	MD	MOTOR COACH		2
7/9/2025	MD6523C00165	MD	045P72	MD	MOTOR COACH		2
7/9/2025	MD6523C00166	MD	035P90	MD	MOTOR COACH		2
7/9/2025	MD6523C00167	MD	040P08	MD	MOTOR COACH		2
7/9/2025	MD6523C00169	MD	035P94	MD	MOTOR COACH		2
7/8/2025	MD6523C00156	MD	046P83	MD	MOTOR COACH		2
7/8/2025	MD6523C00157	MD	048P77	MD	MOTOR COACH		2
7/8/2025	MD6523C00158	MD	040P06	MD	MOTOR COACH		2
7/8/2025	MD6523C00159	MD	035P89	MD	MOTOR COACH		2
7/8/2025	MD6523C00160	MD	040P11	MD	MOTOR COACH		2
7/8/2025	MD6523C00161	MD	040P15	MD	MOTOR COACH		2
7/8/2025	MD6523C00162	MD	040P07	MD	MOTOR COACH		2
7/7/2025	MD6523C00154	MD	046P73	MD	MOTOR COACH		2
7/7/2025	MD6523C00155	MD	045P74	MD	MOTOR COACH		2
7/7/2025	MD6523C00151	MD	046P84	MD	MOTOR COACH		2
7/7/2025	MD6523C00152	MD	045P73	MD	MOTOR COACH		2
7/7/2025	MD6523C00153	MD	046P75	MD	MOTOR COACH		2
3/25/2025	MD6523003704	MD	H7719C	MD	SCHOOL BUS		1
3/25/2025	MD6523003705	MD	H7705	MD	SCHOOL BUS		1
3/25/2025	MD6523003706	MD	H7713C	MD	SCHOOL BUS		1
3/25/2025	MD6523003707	MD	H7720C	MD	SCHOOL BUS		1
3/25/2025	MD6523003708	MD	H7722C	MD	SCHOOL BUS		1
3/25/2025	MD6523003709	MD	H7712C	MD	SCHOOL BUS		1
3/25/2025	MD6523003710	MD	H6989C	MD	SCHOOL BUS		1
3/24/2025	MD6523003697	MD	049P14	MD	MOTOR COACH		1
3/24/2025	MD6523003698	MD	046P83	MD	MOTOR COACH		1
3/24/2025	MD6523003699	MD	045P71	MD	MOTOR COACH		1
3/24/2025	MD6523003700	MD	046P72	MD	MOTOR COACH		1
3/24/2025	MD6523003701	MD	046P73	MD	MOTOR COACH		1
3/24/2025	MD6523003702	MD	035P89	MD	MOTOR COACH		1
3/24/2025	MD6523003703	MD	033P36	MD	MOTOR COACH		1
3/14/2025	MD0242005764	MD	046P72	MD	BUS		1
1/16/2025	MD6502005314	MD	035P91	MD	MOTOR COACH		1
Vehicle Maint. Violation: 393.45D-BAAL Air Brake - Audible air leak at other than a proper connection						4
1/16/2025	MD6502005315	MD	033P37	MD	MOTOR COACH		1
1/16/2025	MD6502005316	MD	046P81	MD	MOTOR COACH		1
1/16/2025	MD6502005317	MD	045P74	MD	MOTOR COACH		1
1/16/2025	MD6502005318	MD	040P07	MD	MOTOR COACH		1
1/16/2025	MD6502005319	MD	046P76	MD	MOTOR COACH		1
1/16/2025	MD6502005321	MD	034P75	MD	MOTOR COACH		1
1/15/2025	MD6502005311	MD	048P78	MD	MOTOR COACH		1
1/15/2025	MD6502005312	MD	046P82	MD	MOTOR COACH		1
1/15/2025	MD6502005313	MD	048P77	MD	MOTOR COACH		1
1/15/2025	MD6502005308	MD	048P81	MD	MOTOR COACH		1
1/15/2025	MD6502005309	MD	050P87	MD	MOTOR COACH		1
1/15/2025	MD6502005310	MD	048P79	MD	MOTOR COACH		1
1/14/2025	MD6502005304	MD	050P85	MD	MOTOR COACH		1
1/14/2025	MD6502005305	MD	050P86	MD	MOTOR COACH		1
1/14/2025	MD6502005306	MD	040P10	MD	MOTOR COACH		1
1/14/2025	MD6502005307	MD	035P93	MD	MOTOR COACH		1
1/14/2025	MD6502005303	MD	040P12	MD	MOTOR COACH		1
Vehicle Maint. Violation: 396.5B-L Lubrication - Oil or grease leak						3
1/13/2025	MD6502005297	MD	046P84	MD	MOTOR COACH		1
1/13/2025	MD6502005298	MD	040P13	MD	MOTOR COACH		1
1/13/2025	MD6502005299	MD	040P08	MD	MOTOR COACH		1
1/13/2025	MD6502005300	MD	034P74	MD	MOTOR COACH		1
Vehicle Maint. Violation: 396.5B-L Lubrication - Oil or grease leak						3
1/13/2025	MD6502005301	MD	046P75	MD	MOTOR COACH		1
1/13/2025	MD6502005302	MD	040P11	MD	MOTOR COACH		1
1/9/2025	MD6502005291	MD	038P32	MD	MOTOR COACH		1
1/9/2025	MD6502005292	MD	035P94	MD	MOTOR COACH		1
1/9/2025	MD6502005293	MD	035P92	MD	MOTOR COACH		1
1/9/2025	MD6502005294	MD	040P15	MD	MOTOR COACH		1
Vehicle Maint. Violation: 396.5B-L Lubrication - Oil or grease leak						3
1/9/2025	MD6502005295	MD	035P95	MD	MOTOR COACH		1
1/9/2025	MD6502005296	MD	035P90	MD	MOTOR COACH		1
Vehicle Maint. Violation: 396.5B-L Lubrication - Oil or grease leak						3
1/8/2025	MD6502005286	MD	040P14	MD	MOTOR COACH		1
1/8/2025	MD6502005287	MD	045P73	MD	MOTOR COACH		1
1/8/2025	MD6502005288	MD	045P72	MD	MOTOR COACH		1
1/8/2025	MD6502005289	MD	046P74	MD	MOTOR COACH		1
1/8/2025	MD6502005290	MD	049P13	MD	MOTOR COACH		1
11/13/2024	DC3051001468	DC	040P14	MD	BUS		1
10/23/2024	MD0266005007	MD	033P36	MD	BUS		1
Vehicle Maint. Violation: 393.9A-LHLI Lighting - Headlamp(s) - Any inoperative						6
7/25/2024	MD6522005919	MD	H7720C	MD	SCHOOL BUS		1
7/25/2024	MD6522005920	MD	H7713C	MD	SCHOOL BUS		1
7/24/2024	MD6522005913	MD	049P14	MD	MOTOR COACH		1
7/24/2024	MD6522005914	MD	045P72	MD	MOTOR COACH		1
7/24/2024	MD6522005915	MD	H7712C	MD	SCHOOL BUS		1
7/24/2024	MD6522005916	MD	H7719C	MD	SCHOOL BUS		1
7/24/2024	MD6522005917	MD	H7722C	MD	SCHOOL BUS		1
7/24/2024	MD6522005918	MD	H6989C	MD	SCHOOL BUS		1
7/23/2024	MD6522005907	MD	045P71	MD	MOTOR COACH		1
7/23/2024	MD6522005908	MD	048P78	MD	MOTOR COACH		1
7/23/2024	MD6522005909	MD	046P72	MD	MOTOR COACH		1
7/23/2024	MD6522005910	MD	035P89	MD	MOTOR COACH		1
7/23/2024	MD6522005911	MD	046P81	MD	MOTOR COACH		1
7/23/2024	MD6522005912	MD	046P82	MD	MOTOR COACH		1
7/22/2024	MD6522005901	MD	050P85	MD	MOTOR COACH		1
7/22/2024	MD6522005902	MD	050P87	MD	MOTOR COACH		1
7/22/2024	MD6522005903	MD	035P91	MD	MOTOR COACH		1
7/22/2024	MD6522005904	MD	040P07	MD	MOTOR COACH		1
7/22/2024	MD6522005905	MD	048P81	MD	MOTOR COACH		1
7/22/2024	MD6522005906	MD	035P95	MD	MOTOR COACH		1
7/19/2024	MD6522005895	MD	038P32	MD	MOTOR COACH		1
7/19/2024	MD6522005896	MD	035P90	MD	MOTOR COACH		1
7/19/2024	MD6522005897	MD	048P77	MD	MOTOR COACH		1
7/19/2024	MD6522005898	MD	040P13	MD	MOTOR COACH		1
7/19/2024	MD6522005899	MD	040P10	MD	MOTOR COACH		1
7/19/2024	MD6522005900	MD	034P75	MD	MOTOR COACH		1
7/18/2024	MD6522005889	MD	048P79	MD	MOTOR COACH		1
7/18/2024	MD6522005890	MD	050P86	MD	MOTOR COACH		1
7/18/2024	MD6522005891	MD	040P06	MD	MOTOR COACH		1
7/18/2024	MD6522005892	MD	040P14	MD	MOTOR COACH		1
7/18/2024	MD6522005893	MD	035P94	MD	MOTOR COACH		1
7/18/2024	MD6522005894	MD	046P83	MD	MOTOR COACH		1
7/17/2024	MD6522005883	MD	033P37	MD	MOTOR COACH		1
7/17/2024	MD6522005884	MD	046P84	MD	MOTOR COACH		1
7/17/2024	MD6522005885	MD	048P80	MD	MOTOR COACH		1
7/17/2024	MD6522005886	MD	033P36	MD	MOTOR COACH		1
7/17/2024	MD6522005887	MD	040P12	MD	MOTOR COACH		1
7/17/2024	MD6522005888	MD	035P92	MD	MOTOR COACH		1
7/16/2024	MD6522005878	MD	046P71	MD	MOTOR COACH		1
7/16/2024	MD6522005879	MD	045P73	MD	MOTOR COACH		1
7/16/2024	MD6522005880	MD	046P73	MD	MOTOR COACH		1
7/16/2024	MD6522005881	MD	040P11	MD	MOTOR COACH		1
7/16/2024	MD6522005882	MD	040P08	MD	MOTOR COACH		1
7/16/2024	MD6522005877	MD	045P74	MD	MOTOR COACH		1
7/15/2024	MD6522005871	MD	028P01	MD	MOTOR COACH		1
7/15/2024	MD6522005872	MD	040P15	MD	MOTOR COACH		1
7/15/2024	MD6522005873	MD	035P93	MD	MOTOR COACH		1
7/15/2024	MD6522005874	MD	049P13	MD	MOTOR COACH		1
7/15/2024	MD6522005875	MD	046P74	MD	MOTOR COACH		1
7/15/2024	MD6522005876	MD	046P76	MD	MOTOR COACH		1
6/13/2024	MD2043005935	MD	038P32	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: 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)

2/5/2026	DC0026016115	DC	048P79	MD	0	4	Yes	No	2	3	6
10/7/2024	MD24S0004143	MD	040P13	MD	0	2	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: 2/6/2024 (Compliance Review)
Total Inspections: 158
- Total Inspections without Violations used in SMS: 151
- Total Inspections with Violations used in SMS: 7
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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Inspection Selection System

Enforcement Cases

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

No penalties found

Tools/Resources

SMS Methodology How to Improve Request a Data Review

For U.S. DOT# 32700

Complete SMS Profile Carrier History Downloads

Summary of Activities (as of 4/24/2026, updated monthly)

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

Most Recent Investigation: 2/6/2024 (Compliance Review)	Total Inspections: 158 Total inspections without violations used in SMS: 151 Total inspections with violations used in SMS: 7	Total Crashes: 2*
2/6/2024 (Compliance Review) 2/19/2021 (Compliance Review) 5/21/2018 (Compliance Review) 12/3/2015 (Onsite Comprehensive Investigation) 1/11/2012 (Onsite Focused Investigation)	# Insp. OOS Driver Inspections 9 0.0% Vehicle Inspections 158 0.0% Placardable HM Inspections 0 0.0% % Placardable HM Inspections 0.0%	Fatal Crashes 0 Injury Crashes 2 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.

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Average PU × Utilization Factor (as of 4/24/2026, 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.

108 Average PU × Utilization Factor = 99 Average Power Units × 1.0909 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.

99 Average Power Units = 99 Current Power Units + 99 Power Units 6 Months Ago + 99 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# 32700 = 40% Straight trucks/other vehicles
Determine VMT per Average Power Unit
21,818 VMT per Average Power Unit = 2,160,000 VMT From Investigation (MCS-151) ÷ 99 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	1.0909 = 21,818 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/.