Safety Measurement System - Complete SMS Profile (U.S. DOT# 2729122)

ENSIGN UNITED STATES DRILLING CALIFORNIA INC

DBA: DBA ENSIGN UNITED STATES DRILLING INC DBA JONAH TRUCKING

U.S. DOT#: 2729122

Number of Vehicles: 94
Number of Drivers: 53
Number of Inspections: 25

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 Property Carrier View)

Behavior Analysis & Safety Improvement Categories (BASICs) Based on a 24-month record ending July 31, 2026

On-Road Performance
0.29 Measure	Not Public	1.20 Measure	2.04 Measure	0 Measure	Not Public	0 Measure
On-Road Performance Detail
Driver Inspections with Unsafe Driving Violations: 1 Safety Event Group: No Safety Event Grouping Avg. PU × UF: 101.3 Segment: Straight Carrier	Not Public	Driver Inspections: 4 with HOS Compliance Violations: 1 Safety Event Group: 3-10 relevant driver inspections	Vehicle Inspections: 23 with Vehicle Maint. Violations: 3 Safety Event Group: 21-100 relevant vehicle inspections	Driver Inspections: 4 with Drugs/Alcohol Violations: 0 Safety Event Group: No Safety Event Grouping	Not Public	Driver Inspections: 4 with Driver Fitness Violations: 0 Safety Event Group: No Safety Event Grouping
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: 12


Violations	Description	# Violations	# OOS Violations	Violation Severity Weight	BASIC

392.2-SLLS4	State/Local Laws - Speeding 15 or more miles per hour over the speed limit	1	0	10	Unsafe Driving
395.22H4-ELDBRODS	HOS (ELD) - In-Vehicle Information - Failing to have a supply of blank driver's records of duty status graph-grids sufficient to record the driver's duty status and other related information for a minimum of 8 days.	1	0	1	HOS Compliance
395.24D-ELDPT	HOS (ELD) - On request by an authorized safety official, a driver must produce and transfer from an ELD the driver's hours of service records in accordance with the instruction sheet provided by the motor carrier	1	0	3	HOS Compliance
392.9A2-C	Cargo - Vehicle components or dunnage not secured	1	1	1	Vehicle Maint.
393.205C-WRAWFLMIB	Wheel/Rim - Any wheel fasteners loose/missing/ineffective/broken.	1	0	2	Vehicle Maint.
393.43DBMA	Brake - Breakaway not attached to the towing vehicle	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.
393.9A-LCL	Lighting - Clearance lamp(s) inoperative	1	0	2	Vehicle Maint.
393.9A-LLPL	Lighting - License plate lamp inoperative	1	0	2	Vehicle Maint.
393.9A-LSLI	Lighting - Stop lamps - Any inoperative.	1	0	6	Vehicle Maint.
393.9A-LSLIWR	Lighting - Stop lamps - Both inoperative when required to be on	1	1	6	Vehicle Maint.
393.9A-LTSI	Lighting - Turn signal - Any inoperative on the rearmost vehicle.	1	1	6	Vehicle Maint.

Inspection History

Total Inspections: 25


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

6/14/2026	CAN9PE003050	CA	42586Z3	CA	STRAIGHT TRUCK		3
6/11/2026	CANBYQ009260	CA	87638K1	CA	STRAIGHT TRUCK		3
Vehicle Maint. Violation: 393.43DBMA Brake - Breakaway not attached to the towing vehicle (OOS)						4 + 2 (OOS)
Vehicle Maint. Violation: 393.9A-LSLI Lighting - Stop lamps - Any inoperative.						6
Vehicle Maint. Violation: 393.9A-LSLIWR Lighting - Stop lamps - Both inoperative when required to be on (OOS)						6 + 2 (OOS)
6/10/2026	CAN9PE003046	CA	17049G4	CA	STRAIGHT TRUCK		3
6/10/2026	CAN9PE003048	CA	00810Y3	CA	STRAIGHT TRUCK		3
6/10/2026	CAN9PE003047	CA	40746R3	CA	STRAIGHT TRUCK		3
6/10/2026	CAN9PE003054	CA	9G45563	CA	TRUCK TRACTOR		3
6/10/2026	CAN9PE003055	CA	9H31807	CA	TRUCK TRACTOR		3
6/10/2026	CAN9PE003052	CA	36581S2	CA	STRAIGHT TRUCK		3
6/10/2026	CAN9PE003053	CA	9H31807	CA	TRUCK TRACTOR		3
6/10/2026	CAN9PE003049	CA	10932G3	CA	STRAIGHT TRUCK		3
6/10/2026	CAN9PE003051	CA	72191U3	CA	STRAIGHT TRUCK		3
6/9/2026	CAN9PE003040	CA	9H31807	CA	TRUCK TRACTOR		3
6/9/2026	CAN9PE003038	CA	9H31807	CA	TRUCK TRACTOR		3
6/9/2026	CAN9PE003039	CA	9G45563	CA	TRUCK TRACTOR		3
6/9/2026	CAN9PE003037	CA	39464R1	CA	STRAIGHT TRUCK		3
6/9/2026	CAN9PE003035	CA	9H31807	CA	TRUCK TRACTOR		3
6/9/2026	CAN9PE003036	CA	72392U3	CA	STRAIGHT TRUCK		3
6/9/2026	CAN9PE003041	CA	9G45563	CA	TRUCK TRACTOR		3
6/9/2026	CAN9PE003033	CA	49155R1	CA	STRAIGHT TRUCK		3
6/9/2026	CAN9PE003034	CA	9F1531	CA	TRUCK TRACTOR		3
6/9/2026	CAN9PE003030	CA	9G45614	CA	STRAIGHT TRUCK		3
6/9/2026	CAN9PE003031	CA	9G45563	CA	TRUCK TRACTOR		3
Vehicle Maint. Violation: 393.9A-LTSI Lighting - Turn signal - Any inoperative on the rearmost vehicle. (OOS)						6 + 2 (OOS)
5/15/2026	CAUEIN000819	CA	29860J2	CA	STRAIGHT TRUCK		3
Unsafe Driving Violation: 392.2-SLLS4 State/Local Laws - Speeding 15 or more miles per hour over the speed limit						10
4/1/2026	CAUDDD000366	CA	9G16044	CA	TRUCK TRACTOR		3
Vehicle Maint. Violation: 392.9A2-C Cargo - Vehicle components or dunnage not secured (OOS)						1 + 2 (OOS)
Vehicle Maint. Violation: 393.205C-WRAWFLMIB Wheel/Rim - Any wheel fasteners loose/missing/ineffective/broken.						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)
Vehicle Maint. Violation: 393.9A-LCL Lighting - Clearance lamp(s) inoperative						2
Vehicle Maint. Violation: 393.9A-LLPL Lighting - License plate lamp inoperative						2
HOS Compliance Violation: 395.22H4-ELDBRODS HOS (ELD) - In-Vehicle Information - Failing to have a supply of blank driver's records of duty status graph-grids sufficient to record the driver's duty status a						1
HOS Compliance Violation: 395.24D-ELDPT HOS (ELD) - On request by an authorized safety official, a driver must produce and transfer from an ELD the driver's hours of service records in accordance with t						3
12/21/2024	CAUDK5002525	CA	9G16044	CA	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: 0

This carrier has no crashes to display.

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:
Total Inspections: 25
- Total Inspections without Violations used in SMS: 21
- Total Inspections with Violations used in SMS: 4
Total 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.

Continue for more Crash, Inspection & Investigation Details

Carrier Registration

Carrier Registration Details Subject to General 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 09/08/2026 updated monthly from FMCSA )

No penalties found

Tools/Resources

SMS Methodology How to Improve Request a Data Review

For U.S. DOT# 2729122

Complete SMS Profile Carrier History Downloads

Summary of Activities (as of 7/31/2026, updated monthly)

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

Most Recent Investigation: None	Total Inspections: 25 Total inspections without violations used in SMS: 21 Total inspections with violations used in SMS: 4	Total Crashes: 0*
	# Insp. OOS Driver Inspections 4 0.0% Vehicle Inspections 23 13.0% Placardable HM Inspections 0 0.0% % Placardable HM Inspections 0.0%	Fatal Crashes 0 Injury Crashes 0 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.

Downloads

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Average PU × Utilization Factor (as of 7/31/2026, 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.

101.3 Average PU × Utilization Factor = 101.3 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.

101.3 Average Power Units = 94 Current Power Units + 105 Power Units 6 Months Ago + 105 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# 2729122 = 86% Straight trucks/other vehicles
Determine VMT per Average Power Unit
11,506 VMT per Average Power Unit = 1,165,930 VMT From Registration (MCS-150) ÷ 101.3 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/.