Safety Measurement System - Complete SMS Profile (U.S. DOT# 2159312)

INTERWEST TRANSPORTATION INC

DBA: INTERWEST TRANSPORTATION

U.S. DOT#: 2159312

Address: 6195 W 300 SOUTH SUITE 300
SALT LAKE CITY, UT 84104
Number of Vehicles: 17
Number of Drivers: 19
Number of Inspections: 50

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 May 15, 2026

On-Road Performance
2.73 Measure	Not Public	0.53 Measure	3.87 Measure	0 Measure	Not Public	0 Measure
On-Road Performance Detail
Driver Inspections with Unsafe Driving Violations: 6 Safety Event Group: 3-8 driver inspections with Unsafe Driving Violations Avg. PU × UF: 18.7 Segment: Combination Carrier	Not Public	Driver Inspections: 50 with HOS Compliance Violations: 5 Safety Event Group: 21-100 relevant driver inspections	Vehicle Inspections: 20 with Vehicle Maint. Violations: 10 Safety Event Group: 11-20 relevant vehicle inspections	Driver Inspections: 50 with Drugs/Alcohol Violations: 0 Safety Event Group: No Safety Event Grouping	Not Public	Driver Inspections: 50 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: 30


Violations	Description	# Violations	# OOS Violations	Violation Severity Weight	BASIC

392.2-SLLLR	State/Local Laws - Lane restriction violation	1	0	3	Unsafe Driving
392.2-SLLML	State/Local Laws - Failure to maintain lane	2	0	5	Unsafe Driving
392.2-SLLS4	State/Local Laws - Speeding 15 or more miles per hour over the speed limit	2	0	10	Unsafe Driving
392.2-SLML	State/Local Laws - Failure to maintain lane.	1	0	5	Unsafe Driving
395.22G-ELDMFV	HOS (ELD) - A portable ELD is not mounted in a fixed position and visible to the driver when seated in the normal driving position.	2	0	1	HOS Compliance
395.22H2-ELDNISDT	HOS (ELD) Driver failing to have instruction sheet describing the data transfer mechanisms supported by the ELD and step-by-step instructions for the driver to produce and transfer the driver's hours of service records to an authorized safety official	1	0	1	HOS Compliance
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
395.30B1-ELDDFR	HOS (ELD) - Driver failing to review records and certify the accuracy of the information.	1	0	1	HOS Compliance
395.3A2-HOSPDIT	HOS (Property) - Driver driving beyond the 14 hour after coming on duty following 10 consecutive hours off duty at the time of inspection. Time	1	0	7	HOS Compliance
395.8E-HOSPD	HOS (Property) - No driver may make a false report in connection with a duty status. Explain	2	0	7	HOS Compliance
393.11A1-CSLRR	Conspicuity Systems - Truck tractor, lower rear retro reflective sheeting missing on vehicle manufactured on or after July 1, 1997	1	0	3	Vehicle Maint.
393.11A1-LCL	Lighting - Clearance lamp(s) missing	1	0	2	Vehicle Maint.
393.11B-CSLRR	Conspicuity Systems - Trailers, lower rear retro reflective sheeting inadequate on vehicle manufactured on or after December 1, 1993	1	0	3	Vehicle Maint.
393.11B-CSURR	Conspicuity Systems - Trailers, upper rear retro reflective sheeting inadequate on vehicle manufactured on or after December 1, 1993	1	0	3	Vehicle Maint.
393.207B-AALPME	Any of the locking pins are missing or not engaged.	1	0	7	Vehicle Maint.
393.45D-B	Air Brake - Audible air leak at a proper connection	2	0	4	Vehicle Maint.
393.47(e)	Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt	2	0	4	Vehicle Maint.
393.53B-B	Air Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate for wear	2	0	4	Vehicle Maint.
393.55C1-B	Air Brake - Truck-tractor manufactured on or after March 1, 1997, not equipped with an ABS system. System does not function or indicates a fault.	1	0	4	Vehicle Maint.
393.55(c)(2)	CMV other than truck-tractor manufactured on or after March 1, 1998 not equipped with an antilock brake system.	1	0	4	Vehicle Maint.
393.55E-B	Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1, 1998	1	0	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-LLPL	Lighting - License plate lamp inoperative	1	0	2	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)

4/3/2026	UT25BH001995	UT	3561654	IN	TRUCK TRACTOR		3
3/31/2026	UT25JH002041	UT	Z093970	UT	TRUCK TRACTOR		3
3/27/2026	NV7165029729	NV	Z093969	UT	TRUCK TRACTOR		3
3/12/2026	UT25XG000189	UT	Z093968	UT	TRUCK TRACTOR		3
Vehicle Maint. Violation: 393.45D-B Air Brake - Audible air leak at a proper connection						4
3/11/2026	ID3596001272	ID	Z088895	UT	TRUCK TRACTOR		3
Vehicle Maint. Violation: 393.53B-B Air Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate for wear						4
Vehicle Maint. Violation: 393.55C1-B Air Brake - Truck-tractor manufactured on or after March 1, 1997, not equipped with an ABS system. System does not function or indicates a fault.						4
Vehicle Maint. Violation: 393.47(e) Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt						4
2/19/2026	UT25MU001969	UT	Z090159	UT	TRUCK TRACTOR		3
1/27/2026	ID3472006825	ID	Z090159	UT	TRUCK TRACTOR		3
1/20/2026	UT25LU002384	UT	Z090159	UT	TRUCK TRACTOR		3
Vehicle Maint. Violation: 393.55E-B Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1, 1998						4
Vehicle Maint. Violation: 393.45D-B Air Brake - Audible air leak at a proper connection						4
1/15/2026	AZ6325001214	AZ	Z093970	UT	TRUCK TRACTOR		3
HOS Compliance Violation: 395.8E-HOSPD HOS (Property) - No driver may make a false report in connection with a duty status. Explain						7
Vehicle Maint. Violation: 393.11B-CSURR Conspicuity Systems - Trailers, upper rear retro reflective sheeting inadequate on vehicle manufactured on or after December 1, 1993						3
Vehicle Maint. Violation: 393.11B-CSLRR Conspicuity Systems - Trailers, lower rear retro reflective sheeting inadequate on vehicle manufactured on or after December 1, 1993						3
1/8/2026	UT26EM000048	UT	Z093968	UT	TRUCK TRACTOR		3
1/6/2026	ORAP40300528	OR	Z088895	UT	TRUCK TRACTOR		3
12/10/2025	UT25TR003030	UT	Z090158	UT	TRUCK TRACTOR		3
11/10/2025	UT25MU001839	UT	Z088895	UT	TRUCK TRACTOR		2
Vehicle Maint. Violation: 393.47(e) Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt						4
Vehicle Maint. Violation: 393.53B-B Air Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate for wear						4
11/7/2025	AZ6361000024	AZ	3561351	IN	TRUCK TRACTOR		2
10/9/2025	AZ6898000173	AZ	3561351	IN	TRUCK TRACTOR		2
Unsafe Driving Violation: 392.2-SLLLR State/Local Laws - Lane restriction violation						3
10/2/2025	ID2790017075	ID	Z090159	UT	TRUCK TRACTOR		2
Vehicle Maint. Violation: 393.207B-AALPME Any of the locking pins are missing or not engaged.						7
9/19/2025	UT25LD001881	UT	Z093971	UT	TRUCK TRACTOR		2
9/8/2025	UT25IX001493	UT	Z093845	UT	TRUCK TRACTOR		2
Unsafe Driving Violation: 392.2-SLLML State/Local Laws - Failure to maintain lane						5
8/25/2025	ID3464007113	ID	Z093844	UT	TRUCK TRACTOR		2
7/28/2025	UT25TE002026	UT	Z090159	UT	TRUCK TRACTOR		2
7/16/2025	NV7816028915	NV	Z093967	UT	TRUCK TRACTOR		2
7/7/2025	UT25TS001898	UT	Z093970	UT	TRUCK TRACTOR		2
6/2/2025	ID3596000808	ID	Z088894	UT	TRUCK TRACTOR		2
Unsafe Driving Violation: 392.2-SLLML State/Local Laws - Failure to maintain lane						5
5/29/2025	UT25BH001548	UT	Z088894	UT	TRUCK TRACTOR		2
5/28/2025	NV9352020099	NV	Z093969	UT	TRUCK TRACTOR		2
5/20/2025	ID3880003283	ID	Z090159	ID	TRUCK TRACTOR		2
HOS Compliance Violation: 395.22G-ELDMFV HOS (ELD) - A portable ELD is not mounted in a fixed position and visible to the driver when seated in the normal driving position.						1
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)
5/19/2025	UT25JJ001894	UT	Z093969	UT	TRUCK TRACTOR		2
HOS Compliance Violation: 395.3A2-HOSPDIT HOS (Property) - Driver driving beyond the 14 hour after coming on duty following 10 consecutive hours off duty at the time of inspection. Time						7
4/30/2025	AZ7035000354	AZ	Z093844	UT	TRUCK TRACTOR		1
HOS Compliance Violation: 395.30B1-ELDDFR HOS (ELD) - Driver failing to review records and certify the accuracy of the information.						1
HOS Compliance Violation: 395.22G-ELDMFV HOS (ELD) - A portable ELD is not mounted in a fixed position and visible to the driver when seated in the normal driving position.						1
HOS Compliance Violation: 395.8E-HOSPD HOS (Property) - No driver may make a false report in connection with a duty status. Explain						7
Vehicle Maint. Violation: 393.9A-LLPL Lighting - License plate lamp inoperative						2
Vehicle Maint. Violation: 393.11A1-CSLRR Conspicuity Systems - Truck tractor, lower rear retro reflective sheeting missing on vehicle manufactured on or after July 1, 1997						3
4/24/2025	UT25LU001962	UT	Z090158	UT	TRUCK TRACTOR		1
4/16/2025	NV7162028539	NV	Z090158	UT	TRUCK TRACTOR		1
4/15/2025	UT25JH001543	UT	Z093968	UT	TRUCK TRACTOR		1
1/10/2025	UT25SQ001733	UT	Z093969	UT	TRUCK TRACTOR		1
12/30/2024	UT25JM000133	UT	3561654	IN	TRUCK TRACTOR		1
12/13/2024	UT25NZ001608	UT	Z090158	UT	TRUCK TRACTOR		1
12/3/2024	UT25JH001412	UT	Z093970	UT	TRUCK TRACTOR		1
11/8/2024	AZ7010000662	AZ	3561348	IN	TRUCK TRACTOR		1
Unsafe Driving Violation: 392.2-SLLS4 State/Local Laws - Speeding 15 or more miles per hour over the speed limit						10
10/8/2024	ID3472006029	ID	Z093971	UT	TRUCK TRACTOR		1
10/2/2024	UT24CZ001663	UT	Z093969	UT	TRUCK TRACTOR		1
9/30/2024	UT24RQ001207	UT	Z090158	UT	TRUCK TRACTOR		1
9/25/2024	ORAP41270131	OR	Z088895	UT	TRUCK TRACTOR		1
9/12/2024	AZ1034700396	AZ	3561351	IN	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.55(c)(2) CMV other than truck-tractor manufactured on or after March 1, 1998 not equipped with an antilock brake system						4
8/27/2024	UT24RU001224	UT	3561654	IN	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.11A1-LCL Lighting - Clearance lamp(s) missing						2
8/14/2024	AZ1085200028	AZ	3561348	IN	TRUCK TRACTOR		1
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: 395.22H2-ELDNISDT HOS (ELD) Driver failing to have instruction sheet describing the data transfer mechanisms supported by the ELD and step-by-step instructions for the driver to pr						1
8/7/2024	UT24MA001479	UT	Z093970	UT	TRUCK TRACTOR		1
7/30/2024	NV7816028110	NV	Z093967	UT	TRUCK TRACTOR		1
7/29/2024	ID0000238327	ID	3561654	IN	TRUCK TRACTOR		1
Unsafe Driving Violation: 392.2-SLLS4 State/Local Laws - Speeding 15 or more miles per hour over the speed limit						10
7/16/2024	ID3472005782	ID	Z093970	UT	TRUCK TRACTOR		1
Unsafe Driving Violation: 392.2-SLML State/Local Laws - Failure to maintain lane						5
7/10/2024	UT24JH001233	UT	Z093845	UT	TRUCK TRACTOR		1
6/26/2024	AZXC58050068	AZ	3561347	IN	TRUCK TRACTOR		1
6/10/2024	ORAP43240030	OR	Z088894	UT	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)

4/2/2026	UT2601925556	UT	Z093844	UT	0	0	Yes	No	1	3	3
11/7/2025	AZ0I25067848	AZ	3561351	IN	0	0	Yes	No	1	2	2
9/1/2025	UT2600252746	UT	Z093845	UT	1	0	No	No	2	2	4

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: 50
- Total Inspections without Violations used in SMS: 32
- Total Inspections with Violations used in SMS: 18
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 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 06/27/2026 updated monthly from FMCSA )

No penalties found

Tools/Resources

SMS Methodology How to Improve Request a Data Review

For U.S. DOT# 2159312

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: None	Total Inspections: 50 Total inspections without violations used in SMS: 32 Total inspections with violations used in SMS: 18	Total Crashes: 3*
	# Insp. OOS Driver Inspections 50 0.0% Vehicle Inspections 20 5.0% Placardable HM Inspections 0 0.0% % Placardable HM Inspections 0.0%	Fatal Crashes 1 Injury Crashes 0 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 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.

18.7 Average PU × Utilization Factor = 18.7 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.

18.7 Average Power Units = 17 Current Power Units + 18 Power Units 6 Months Ago + 21 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: Combo
Combination trucks/motor coach buses constituting 70% or more of the total PU
U.S. DOT# 2159312 = 94% Combination trucks/motor coach buses
Determine VMT per Average Power Unit
77,504 VMT per Average Power Unit = 1,447,000 VMT From Registration (MCS-150) ÷ 18.7 Average Power Units

Based on Step 1 and 2 calculate the Utilization Factor

Combo Segment
Meets Criteria	VMT per Avgerage PU	Utilization Factor
	< 80,000	1
	80,000 – 160,000	1 + (VMT per PU − 80,000) ÷ 133,333
	160,000 – 200,000	1.6
	> 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/.