Safety Measurement System - Complete SMS Profile (U.S. DOT# 506356)

CORBY ENERGY SERVICES INC

U.S. DOT#: 506356

Number of Vehicles: 207
Number of Drivers: 128
Number of Inspections: 27

Safety Rating & OOS Rates

(As of 01/25/2026 updated daily from SAFER )

Not Rated

Out of Service Rates

Type	OOS %	National Avg %
Vehicle	38.5	23.2
Driver	8.0	6.4
Hazmat	100.0	4.4

Licensing and Insurance

(As of 01/25/2026 updated hourly from L&I )

Active For-Hire Authority
Type	Yes/No	MC#/MX#
Property	No
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 December 26, 2025

On-Road Performance
0.14 Measure	Not Public	0.33 Measure	4.52 Measure	0 Measure	Not Public	0.30 Measure
On-Road Performance Detail
Driver Inspections with Unsafe Driving Violations: 6 Safety Event Group: 5-8 driver inspections with Unsafe Driving Violations Avg. PU × UF: 314.1 Segment: Straight Carrier	Not Public	Driver Inspections: 27 with HOS Compliance Violations: 1 Safety Event Group: 21-100 relevant driver inspections	Vehicle Inspections: 14 with Vehicle Maint. Violations: 8 Safety Event Group: 11-20 relevant vehicle inspections	Driver Inspections: 27 with Drugs/Alcohol Violations: 0 Safety Event Group: No Safety Event Grouping	Not Public	Driver Inspections: 27 with Driver Fitness Violations: 4 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: 29


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
392.16-D	Driver - Failed to use seat belt while operating a CMV.	1	0	7	Unsafe Driving
392.2LV	Lane Restriction violation	3	0	3	Unsafe Driving
392.82(a)1	Using a hand-held mobile telephone while operating a CMV	1	0	10	Unsafe Driving
395.8A1-HOSP	HOS (Property) - Failing to have a record of duty status using the method prescribed.	1	1	5	HOS Compliance
383.93(b)(4)	No hazardous materials endorsement on CDL	1	1	8	Driver Fitness
391.41(a)	Operating a property-carrying vehicle without a valid medical certificate in possession or on file with the state drivers licensing agency. History of either failing to produce a medical certificate or having an expired medical certificate.	1	0	1	Driver Fitness
391.45A-MCMC	Medical (Certificate) - Operating a CMV without being medically certified.	1	0	1	Driver Fitness
391.45(b)	Expired medical examiner's certificate	1	0	1	Driver Fitness
393.104(f)(3)	Loose or unfastened tiedown.	1	0	3	Vehicle Maint.
393.207(c)	Leaf spring assembly defective/missing	1	1	7	Vehicle Maint.
393.23PT	All required lamps on towed vehicle inoperative due to no electrical connection	1	1	2	Vehicle Maint.
393.25(a)	Improper Lamp Mounting	1	0	6	Vehicle Maint.
393.25(b)	Lamps are not visible as required	1	0	6	Vehicle Maint.
393.43	No/improper breakaway or emergency braking	1	1	4	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	1	1	8	Vehicle Maint.
393.81	Horn inoperative	1	0	3	Vehicle Maint.
393.9	Inoperable Required Lamp	1	0	2	Vehicle Maint.
393.95A1	Emergency Equipment - Fire Extinguishers - no fire extinguisher present or not properly rated.	1	0	2	Vehicle Maint.
393.95(f)	Emergency Equipment - Stopped vehicle warning devices missing or improper.	1	0	2	Vehicle Maint.
393.9(a)	Inoperative Brake Lamps	1	0	6	Vehicle Maint.
393.9T	Inoperable tail lamp	2	0	6	Vehicle Maint.
172.326(c)(1)	No ID# marking on vehicle carrying portable tank	1	0	5	HM Compliance
172.504(a)	Vehicle not placarded as required	1	1	5	HM Compliance
172.600(c)	Offer or transport without emergency response information	1	0	3	HM Compliance
177.817(a)	No or improper shipping papers (carrier)	1	1	3	HM Compliance

Inspection History

Total Inspections: 27


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

11/19/2025	MICELMS01545	MI	PF19236	MI	STRAIGHT TRUCK		3
10/3/2025	MIWILLD03922	MI	RB63206	MI	TRUCK TRACTOR		3
10/2/2025	MIDELMT02265	MI	PF14870	MI	STRAIGHT TRUCK		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)
Vehicle Maint. Violation: 393.95A1 Emergency Equipment - Fire Extinguishers - no fire extinguisher present or not properly rated.						2
8/21/2025	MIHERLK02609	MI	PF14867	MI	TRUCK TRACTOR		3
Unsafe Driving Violation: 392.16-D Driver - Failed to use seat belt while operating a CMV						7
7/11/2025	MISEYFE00103	MI	PF14780	MI	TRUCK TRACTOR		3
6/24/2025	MIBESSJ01182	MI	PF14808	MI	STRAIGHT TRUCK		2
6/4/2025	MIPATTM05062	MI	PF19230	MI	STRAIGHT TRUCK		2
5/30/2025	MICOPEK03227	MI	PF19237	MI	TRUCK TRACTOR		2
4/28/2025	MIROLLJ02743	MI	PF14870	MI	STRAIGHT TRUCK		2
HOS Compliance Violation: 395.8A1-HOSP HOS (Property) - Failing to have a record of duty status using the method prescribed (OOS)						5 + 2 (OOS)
2/21/2025	MIHARRK01470	MI	PF16554	MI	STRAIGHT TRUCK		2
11/1/2024	MIKAATZ00356	MI	PF16662	MI	STRAIGHT TRUCK		1
Driver Fitness Violation: 391.45A-MCMC Medical (Certificate) - Operating a CMV without being medically certified						1
10/22/2024	MIDAWDD03742	MI	PF14845	MI	STRAIGHT TRUCK		1
9/5/2024	MIHADZM04597	MI	PF18744	MI	STRAIGHT TRUCK		1
Unsafe Driving Violation: 392.2LV Lane Restriction violation						3
8/22/2024	MIRAMSB02044	MI	PF14883	MI	STRAIGHT TRUCK		1
Vehicle Maint. Violation: 393.95(f) Emergency Equipment - Stopped vehicle warning devices missing or improper						2
Vehicle Maint. Violation: 393.9 Inoperable Required Lamp						2
Vehicle Maint. Violation: 393.25(a) Improper Lamp Mounting						6
Driver Fitness Violation: 391.41(a) Operating a property-carrying vehicle without a valid medical certificate in possession or on file with the state drivers licensing agency. History of either fail						1
7/15/2024	MIGENTC02757	MI	PF18581	MI	STRAIGHT TRUCK		1
Vehicle Maint. Violation: 393.104(f)(3) Loose or unfastened tiedown						3
Vehicle Maint. Violation: 393.9T Inoperable tail lamp						6
7/9/2024	MIDAWDD03613	MI	PF16662	MI	STRAIGHT TRUCK		1
6/19/2024	MIPENNJ00891	MI	PF14827	MI	STRAIGHT TRUCK		1
Driver Fitness Violation: 383.93(b)(4) No hazardous materials endorsement on CDL (OOS)						8 + 2 (OOS)
HM Compliance Violation: 177.817(a) No or improper shipping papers (carrier) (OOS)						3 + 2 (OOS)
HM Compliance Violation: 172.600(c) Offer or transport without emergency response information						3
HM Compliance Violation: 172.504(a) Vehicle not placarded as required (OOS)						5 + 2 (OOS)
HM Compliance Violation: 172.326(c)(1) No ID# marking on vehicle carrying portable tank						5
Vehicle Maint. Violation: 393.81 Horn inoperative						3
6/17/2024	MIBARTT04449	MI	PF14893	MI	STRAIGHT TRUCK		1
5/24/2024	MIKERSD00556	MI	PF14761	MI	STRAIGHT TRUCK		1
5/9/2024	MIBEAMW03810	MI	PF16654	MI	STRAIGHT TRUCK		1
Vehicle Maint. Violation: 393.207(c) Leaf spring assembly defective/missing (OOS)						7 + 2 (OOS)
4/24/2024	MIDETGT04689	MI	PF18731	MI	STRAIGHT TRUCK		1
4/11/2024	MIWILLD03198	MI	RB63206	MI	TRUCK TRACTOR		1
4/8/2024	MIBACZM02236	MI	PF14750	MI	STRAIGHT TRUCK		1
Unsafe Driving Violation: 392.2LV Lane Restriction violation						3
3/28/2024	MIBACZM02225	MI	PF18736	MI	STRAIGHT TRUCK		1
Vehicle Maint. Violation: 393.43 No/improper breakaway or emergency braking (OOS)						4 + 2 (OOS)
Unsafe Driving Violation: 392.2LV Lane Restriction violation						3
3/6/2024	MIKERSD00341	MI	PF14866	MI	STRAIGHT TRUCK		1
Vehicle Maint. Violation: 393.23PT All required lamps on towed vehicle inoperative due to no electrical connection (OOS)						2 + 2 (OOS)
1/10/2024	MILOPEL01501	MI	PF14867	MI	STRAIGHT TRUCK		1
Vehicle Maint. Violation: 393.9T Inoperable tail lamp						6
Vehicle Maint. Violation: 393.25(b) Lamps are not visible as required						6
Unsafe Driving Violation: 392.16 Failing to use seat belt while operating a CMV						7
Driver Fitness Violation: 391.45(b) Expired medical examiner's certificate						1
Vehicle Maint. Violation: 393.9(a) Inoperative Brake Lamps						6
1/8/2024	MIKERSD00212	MI	PF16664	MI	TRUCK TRACTOR		1
Unsafe Driving Violation: 392.82(a)1 Using a hand-held mobile telephone while operating a CMV						10

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: 10


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)

10/7/2025	MI0003613901	MI	PF14765	MI	0	0	Yes	No	1	3	3
9/2/2025	MI0003587143	MI	RB63206	MI	0	1	Yes	No	2	3	6
7/8/2025	MI0003541106	MI	RB63206	MI	0	0	Yes	No	1	3	3
5/29/2025	MI0003519116	MI	PF20279	MI	0	0	Yes	No	1	2	2
3/24/2025	MI0003474138	MI	PF18583	MI	0	0	Yes	No	1	2	2
2/25/2025	MI0003441510	MI	DD32489	MI	0	0	Yes	No	1	2	2
11/4/2024	MI0003331383	MI	PF14757	MI	0	0	Yes	No	1	1	1
10/4/2024	MI0003300215	MI	PF14758	MI	0	0	Yes	No	1	1	1
4/1/2024	MI0003158491	MI	PF18581	MI	0	0	Yes	No	1	1	1
2/22/2024	MI0003127224	MI	PF14715	MI	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: 7/20/2022 (Non-Ratable Review)
Total Inspections: 27
- Total Inspections without Violations used in SMS: 13
- Total Inspections with Violations used in SMS: 14
Total Crashes* : 10

*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

Enforcement Cases

(Six years as of 01/25/2026 updated monthly from FMCSA )

No penalties found

Tools/Resources

SMS Methodology How to Improve Request a Data Review

For U.S. DOT# 506356

Complete SMS Profile Carrier History Downloads

Summary of Activities (as of 12/26/2025, updated monthly)

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

Most Recent Investigation: 7/20/2022 (Non-Ratable Review)	Total Inspections: 27 Total inspections without violations used in SMS: 13 Total inspections with violations used in SMS: 14	Total Crashes: 10*
7/20/2022 (Non-Ratable Review) 12/10/2014 (Non-Ratable Review) 10/22/2007 (Compliance Review)	# Insp. OOS Driver Inspections 27 7.4% Vehicle Inspections 14 35.7% Placardable HM Inspections 1 100.0% % Placardable HM Inspections 7.1%	Fatal Crashes 0 Injury Crashes 1 Towaway Crashes 9

*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 12/26/2025, 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.

314.1 Average PU × Utilization Factor = 208 Average Power Units × 1.51 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.

208 Average Power Units = 207 Current Power Units + 207 Power Units 6 Months Ago + 210 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# 506356 = 96% Straight trucks/other vehicles
Determine VMT per Average Power Unit
30,200 VMT per Average Power Unit = 6,281,671 VMT From Registration (MCS-150) ÷ 208 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	1.51 = 30,200 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/.