Safety Measurement System - Complete SMS Profile (U.S. DOT# 1671536)

CHAMBERS MOTORS INC

DBA: WM M CHAMBERS & SON

U.S. DOT#: 1671536

Address: 20610 SUSSEX HIGHWAY
SEAFORD, DE 19973
Number of Vehicles: 37
Number of Drivers: 31
Number of Inspections: 50

Safety Rating & OOS Rates

(As of 03/05/2025 updated daily from SAFER )

Not Rated

Out of Service Rates

Type	OOS %	National Avg %
Vehicle	17.1	21.4
Driver	0.0	6.0
Hazmat		4.5

Licensing and Insurance

(As of 03/05/2025 updated hourly from L&I )

Active For-Hire Authority
Type	Yes/No	MC#/MX#
Property	Yes	MC-666272
Passenger	No
Household Goods	No
Broker	No

BASIC Status (Public Property Carrier View)

Behavior Analysis & Safety Improvement Categories (BASICs) Based on a 24-month record ending January 31, 2025

On-Road Performance
0.97 Measure	Not Public	0 Measure	2.73 Measure	0 Measure	Not Public	0 Measure
On-Road Performance Detail
Driver Inspections with Unsafe Driving Violations: 7 Safety Event Group: 5-8 driver inspections with Unsafe Driving Violations Avg. PU × UF: 63.8 Segment: Straight Carrier	Not Public	Driver Inspections: 49 with HOS Compliance Violations: 0 Safety Event Group: 21-100 relevant driver inspections	Vehicle Inspections: 40 with Vehicle Maint. Violations: 12 Safety Event Group: 21-100 relevant vehicle inspections	Driver Inspections: 49 with Drugs/Alcohol Violations: 0 Safety Event Group: No Safety Event Grouping	Not Public	Driver Inspections: 49 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: 26


Violations	Description	# Violations	# OOS Violations	Violation Severity Weight	BASIC

392.16	Failing to use seat belt while operating a CMV	1	0	7	Unsafe Driving
392.2C	Failure to obey traffic control device	3	0	5	Unsafe Driving
392.2LC	Improper lane change	1	0	5	Unsafe Driving
392.2LV	Lane Restriction violation	1	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-SLLTCD	State/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g., safety offical, signal, sign, light, lane marking, other.	1	0	5	Unsafe Driving
392.9(a)(2)	Failing to secure vehicle equipment	1	1	1	Vehicle Maint.
393.104(b)	Damaged securement system/tiedowns	1	0	1	Vehicle Maint.
393.110	Failing to meet minimum tiedown requirements	1	1	1	Vehicle Maint.
393.110(b)	Insufficient tiedowns to prevent forward movement for load not blocked by headerboard, bulkhead, or other cargo.	1	1	3	Vehicle Maint.
393.45B2-B	Air brake - Hose/tubing damaged or not secured	1	1	4	Vehicle Maint.
393.45B2PC	Brake Hose or Tubing Chafing and/or Kinking - Connection to Power Unit	1	1	4	Vehicle Maint.
393.47(e)	Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt	1	0	4	Vehicle Maint.
393.48A-BMBCBD	Drum Brake - Missing/broken component(s).	1	0	4	Vehicle Maint.
393.53(b)	CMV manufactured after 10/19/94 has an automatic airbrake adjustment system that fails to compensate for wear	1	0	4	Vehicle Maint.
393.75(a)	Flat tire or fabric exposed	1	1	8	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	2	2	8	Vehicle Maint.
393.75(a)(4)	Tire-cut exposing ply and/or belt material	1	0	8	Vehicle Maint.
393.78A-WS	Washers - Inoperative washing system.	1	0	1	Vehicle Maint.
393.9	Inoperable Required Lamp	1	0	2	Vehicle Maint.
396.17(c)	Operating a CMV without proof of a periodic inspection	1	0	4	Vehicle Maint.
396.3(a)1BOS	Brake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination.	1	1	0	Vehicle Maint.
396.5(b)	Oil and/or grease leak	1	0	3	Vehicle Maint.

Inspection History

Total Inspections: 50


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

12/18/2024	MD0251005968	MD	CL123046	DE	STRAIGHT TRUCK		3
12/18/2024	VA8754000618	VA	CL124126	DE	TRUCK TRACTOR		3
11/13/2024	MD0242005542	MD	CL109920	DE	TRUCK TRACTOR		3
11/7/2024	MD0249007378	MD	CL109920	DE	TRUCK TRACTOR		3
Unsafe Driving Violation: 392.2-SLLTCD State/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g., safety official, signal, sign, light, lane marking, other						5
10/24/2024	MD0321000431	MD	CL121609	DE	TRUCK TRACTOR		3
Vehicle Maint. Violation: 393.53(b) CMV manufactured after 10/19/94 has an automatic airbrake adjustment system that fails to compensate for wear						4
Vehicle Maint. Violation: 393.45B2-B Air Brake - Hose/tubing damaged or not secured (OOS)						4 + 2 (OOS)
Vehicle Maint. Violation: 393.47(e) Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt						4
Vehicle Maint. Violation: 393.48A-BMBCBD Drum Brake - Missing/broken component(s)						4
Vehicle Maint. Violation: 396.3(a)1BOS Brake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination (OOS)						0 + 2 (OOS)
9/25/2024	MD0293003986	MD	CL123987	DE	STRAIGHT TRUCK		3
9/23/2024	MD3247005761	MD	CL119557	DE	TRUCK TRACTOR		3
Vehicle Maint. Violation: 393.110(b) Insufficient tiedowns to prevent forward movement for load not blocked by headerboard, bulkhead, or other cargo (OOS)						3 + 2 (OOS)
Vehicle Maint. Violation: 393.104(b) Damaged securement system/tiedowns						1
Vehicle Maint. Violation: 393.45B2PC Brake Hose or Tubing Chafing and/or Kinking - Connection to Power Unit (OOS)						4 + 2 (OOS)
9/3/2024	DE1528000800	DE	CL122059	DE	TRUCK TRACTOR		3
9/3/2024	MD3245005116	MD	CL118072	DE	TRUCK TRACTOR		3
8/30/2024	DE0398000759	DE	CL123131	DE	TRUCK TRACTOR		3
8/15/2024	DE1679000255	DE	CL119557	DE	TRUCK TRACTOR		3
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)
7/23/2024	PAK312420556	PA	CL123902	DE	TRUCK TRACTOR		2
Unsafe Driving Violation: 392.16 Failing to use seat belt while operating a CMV						7
7/18/2024	MD2345001039	MD	CL122771	DE	TRUCK TRACTOR		2
Vehicle Maint. Violation: 396.5(b) Oil and/or grease leak						3
7/17/2024	VA4957003677	VA	CL119558	DE	TRUCK TRACTOR		2
7/3/2024	MD3247005569	MD	CL121609	DE	TRUCK TRACTOR		2
5/1/2024	MD2099005984	MD	CL121639	DE	STRAIGHT TRUCK		2
3/20/2024	MD1954000961	MD	CL121639	DE	STRAIGHT TRUCK		2
3/8/2024	MD1954000919	MD	CL121639	DE	STRAIGHT TRUCK		2
3/6/2024	DE1257000343	DE	CL109920	DE	TRUCK TRACTOR		2
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)
2/16/2024	DE0400000328	DE	T74070	DE	SEMI-TRAILER		2
1/30/2024	US1877000069	US	CL118072	DE	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.78A-WS Washers - Inoperative washing system.						1
1/11/2024	MD2515000009	MD	CL119557	DE	TRUCK TRACTOR		1
1/11/2024	PAC133010009	PA	CL121639	DE	STRAIGHT TRUCK		1
12/22/2023	MD3247005081	MD	CL122771	DE	TRUCK TRACTOR		1
12/21/2023	MD2397000076	MD	CL123046	DE	STRAIGHT TRUCK		1
11/17/2023	MD2093006846	MD	CL121639	DE	STRAIGHT TRUCK		1
11/8/2023	DE1279000140	DE	CL122059	MD	TRUCK TRACTOR		1
10/10/2023	MD2093006696	MD	CL119298	DE	TRUCK TRACTOR		1
Vehicle Maint. Violation: 396.17(c) Operating a CMV without proof of a periodic inspection						4
9/19/2023	VA4957003379	VA	CL121639	DE	STRAIGHT TRUCK		1
9/14/2023	RI00DP002932	RI	CL123132	DE	TRUCK TRACTOR		1
Unsafe Driving Violation: 392.2LV Lane Restriction violation						3
Unsafe Driving Violation: 392.2LC Improper lane change						5
8/22/2023	MD2099005230	MD	CL121639	DE	STRAIGHT TRUCK		1
Vehicle Maint. Violation: 393.75(a)(4) Tire-cut exposing ply and/or belt material						8
Unsafe Driving Violation: 392.2C Failure to obey traffic control device						5
8/21/2023	DESH02005294	DE	CL118072	DE	TRUCK TRACTOR		1
7/13/2023	DEM003016299	DE	CL119557	DE	TRUCK TRACTOR		1
6/28/2023	DEM009002802	DE	CL122059	DE	TRUCK TRACTOR		1
6/23/2023	MD3245003946	MD	CL121609	DE	TRUCK TRACTOR		1
6/22/2023	VA4957003243	VA	CL116986	DE	TRUCK TRACTOR		1
6/20/2023	MD0158001594	MD	CL121639	DE	STRAIGHT TRUCK		1
Unsafe Driving Violation: 392.2C Failure to obey traffic control device						5
6/14/2023	MD2274003063	MD	CL116290	DE	TRUCK TRACTOR		1
6/9/2023	MD2319002769	MD	CL119557	DE	TRUCK TRACTOR		1
Unsafe Driving Violation: 392.2-SLLS4 State/Local Laws - Speeding 15 or more miles per hour over the speed limit						10
Vehicle Maint. Violation: 393.75(a) Flat tire or fabric exposed (OOS)						8 + 2 (OOS)
6/7/2023	DEM011002350	DE	CL116986	DE	TRUCK TRACTOR		1
5/15/2023	MD1954000418	MD	CL116986	DE	TRUCK TRACTOR		1
5/5/2023	DEM008003442	DE	CL116986	DE	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.110 Failing to meet minimum tiedown requirements (OOS)						1 + 2 (OOS)
4/28/2023	MD3247004574	MD	CL123131	DE	TRUCK TRACTOR		1
Vehicle Maint. Violation: 392.9(a)(2) Failing to secure vehicle equipment (OOS)						1 + 2 (OOS)
4/27/2023	MD1954000375	MD	CL121639	DE	STRAIGHT TRUCK		1
4/19/2023	MD0251004638	MD	CL121639	DE	STRAIGHT TRUCK		1
4/13/2023	MD0249005961	MD	CL119115	DE	STRAIGHT TRUCK		1
Unsafe Driving Violation: 392.2C Failure to obey traffic control device						5
4/6/2023	MD1954000305	MD	CL119621	DE	STRAIGHT TRUCK		1
3/29/2023	MD2109004993	MD	CL109920	DE	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.9 Inoperable Required Lamp						2
3/22/2023	DEM008003250	DE	CL112322	DE	TRUCK TRACTOR		1
2/13/2023	MD3258001167	MD	CL119557	DE	TRUCK TRACTOR		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)

7/16/2024	VA0242255247	VA	CL119115	DE	0	0	Yes	No	1	2	2
5/29/2024	NJ0024905369	NJ	CL121639	DE	0	0	Yes	No	1	2	2
3/21/2023	MD23A1007930	MD	CL119557	DE	0	1	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: 11/9/2022 (Non-Ratable Review)
Total Inspections: 50
- Total Inspections without Violations used in SMS: 33
- Total Inspections with Violations used in SMS: 17
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

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Enforcement Cases

(Six years as of 03/05/2025 updated monthly from FMCSA )

Closed Date Case #
1/3/2023 DE-2023-0010-US1361

Tools/Resources

SMS Methodology How to Improve Request a Data Review

For U.S. DOT# 1671536

Complete SMS Profile Carrier History Downloads

Summary of Activities (as of 1/31/2025, updated monthly)

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

Most Recent Investigation: 11/9/2022 (Non-Ratable Review)	Total Inspections: 50 Total inspections without violations used in SMS: 33 Total inspections with violations used in SMS: 17	Total Crashes: 3*
11/9/2022 (Non-Ratable Review)	# Insp. OOS Driver Inspections 49 0.0% Vehicle Inspections 40 17.5% Placardable HM Inspections 0 0.0% % Placardable HM Inspections 0.0%	Fatal Crashes 0 Injury Crashes 1 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.

Downloads

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Average PU × Utilization Factor (as of 1/31/2025, 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.

63.8 Average PU × Utilization Factor = 37 Average Power Units × 1.7233 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.

37 Average Power Units = 37 Current Power Units + 37 Power Units 6 Months Ago + 37 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# 1671536 = 54% Straight trucks/other vehicles
Determine VMT per Average Power Unit
34,465 VMT per Average Power Unit = 1,275,217 VMT From ÷ 37 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	1.7233 = 34,465 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/.