Safety Measurement System - Complete SMS Profile (U.S. DOT# 454921)

CUMPTON TRUCKING INC

U.S. DOT#: 454921

Address: 13565 HIGHWAY 36 EAST
RED BLUFF, CA 96080
Number of Vehicles: 8
Number of Drivers: 8
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 September 25, 2026

On-Road Performance
2 Measure	Not Public	0.16 Measure	1.82 Measure	0 Measure	Not Public	0 Measure
On-Road Performance Detail
Driver Inspections with Unsafe Driving Violations: 2 Safety Event Group: No Safety Event Grouping Avg. PU × UF: 10 Segment: Combination Carrier	Not Public	Driver Inspections: 25 with HOS Compliance Violations: 1 Safety Event Group: 21-100 relevant driver inspections	Vehicle Inspections: 23 with Vehicle Maint. Violations: 7 Safety Event Group: 21-100 relevant vehicle inspections	Driver Inspections: 25 with Drugs/Alcohol Violations: 0 Safety Event Group: No Safety Event Grouping	Not Public	Driver Inspections: 25 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: 13


Violations	Description	# Violations	# OOS Violations	Violation Severity Weight	BASIC

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	2	0	5	Unsafe Driving
395.8A1-HOSP	HOS (Property) - Failing to have a record of duty status using the method prescribed	1	1	5	HOS Compliance
393.118D-CDL	Dressed Lumber/Similar Building Products - Improper Securement of bundles transported using more than one tier.	1	1	3	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-CSRIGRR	Conspicuity Systems - Trailers, rear impact guard retro reflective sheeting inadequate on vehicle manufactured on or after December 1, 1993	1	0	3	Vehicle Maint.
393.11B-CSSRR	Conspicuity Systems - Trailers, side retro reflective sheeting inadequate on vehicle manufactured on or after December 1, 1993	1	0	3	Vehicle Maint.
393.45D-B	Air Brake - Audible air leak at a proper connection	1	0	4	Vehicle Maint.
393.45D-BAAL	Air Brake - Audible air leak at other than a proper connection	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	3	3	8	Vehicle Maint.
396.5B-L	Lubrication - Oil or grease leak	1	0	3	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)

9/21/2026	CAUF19000286	CA	ZP27532	CA	TRUCK TRACTOR		3
9/18/2026	CANETE004760	CA	ZP93084	CA	TRUCK TRACTOR		3
9/18/2026	CANFAC003086	CA	ZP27533	CA	TRUCK TRACTOR		3
8/28/2026	CAN91G008287	CA	9G66979	CA	TRUCK TRACTOR		3
Vehicle Maint. Violation: 396.5B-L Lubrication - Oil or grease leak						3
8/26/2026	CAUDAJ003655	CA	9G66979	CA	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
Vehicle Maint. Violation: 393.45D-B Air Brake - Audible air leak at a proper connection						4
7/29/2026	CANEL1006131	CA	ZP27531	CA	TRUCK TRACTOR		3
1/20/2026	CAN91G007213	CA	ZP27533	CA	TRUCK TRACTOR		2
10/7/2025	CANCU6005230	CA	ZP27531	CA	TRUCK TRACTOR		2
10/2/2025	CANCV6008701	CA	ZP27532	CA	TRUCK TRACTOR		2
9/29/2025	CANBTJ007690	CA	ZP27531	CA	TRUCK TRACTOR		2
9/26/2025	CANELC004190	CA	ZP27533	CA	TRUCK TRACTOR		2
9/26/2025	CANEZF002914	CA	ZP27531	CA	TRUCK TRACTOR		2
9/23/2025	CANCV6008634	CA	ZP27531	CA	TRUCK TRACTOR		1
9/19/2025	CANEZF002873	CA	ZP27533	CA	TRUCK TRACTOR		1
9/19/2025	CANEZF002871	CA	ZP27532	CA	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.45D-BAAL Air Brake - Audible air leak at other than a proper connection (OOS)						4 + 2 (OOS)
9/11/2025	CAN9PH006080	CA	ZP27533	CA	TRUCK TRACTOR		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)
8/12/2025	CAUCCC003787	CA	ZP27531	CA	TRUCK TRACTOR		1
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
HOS Compliance Violation: 395.8A1-HOSP HOS (Property) - Failing to have a record of duty status using the method prescribed (OOS)						5 + 2 (OOS)
5/15/2025	CAUDI1002955	CA	ZP27533	CA	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.11B-CSRIGRR Conspicuity Systems - Trailers, rear impact guard 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
Vehicle Maint. Violation: 393.118D-CDL Dressed Lumber/Similar Building Products - Improper Securement of bundles transported using more than one tier. (OOS)						3 + 2 (OOS)
Vehicle Maint. Violation: 393.11B-CSSRR Conspicuity Systems - Trailers, side retro reflective sheeting inadequate on vehicle manufactured on or after December 1, 1993						3
4/8/2025	CAUG0K005062	CA	ZP27532	CA	TRUCK TRACTOR		1
3/24/2025	CANEKW003162	CA	ZP27533	CA	TRUCK TRACTOR		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)
12/15/2024	CAND5A007438	CA	ZP27532	CA	TRUCK TRACTOR		1
12/10/2024	ORAW40840108	OR	ZP27533	CA	TRUCK TRACTOR		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)
12/5/2024	CANDZX003087	CA	ZP27532	CA	TRUCK TRACTOR		1
10/14/2024	CANCU6003963	CA	ZP27533	CA	TRUCK TRACTOR		1
10/2/2024	CAN92M006487	CA	ZP27531	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: 2/18/1992 (Compliance Review)
Total Inspections: 25
- Total Inspections without Violations used in SMS: 17
- Total Inspections with Violations used in SMS: 8
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 10/31/2026 updated monthly from FMCSA )

No penalties found

Tools/Resources

SMS Methodology How to Improve Request a Data Review

For U.S. DOT# 454921

Complete SMS Profile Carrier History Downloads

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

Most Recent Investigation: 2/18/1992 (Compliance Review)	Total Inspections: 25 Total inspections without violations used in SMS: 17 Total inspections with violations used in SMS: 8	Total Crashes: 0*
2/18/1992 (Compliance Review) 7/19/1991 (Safety Review)	# Insp. OOS Driver Inspections 25 4.0% Vehicle Inspections 23 21.7% 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.

Average PU × Utilization Factor (as of 9/25/2026, 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.

10 Average PU × Utilization Factor = 10 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.

10 Average Power Units = 8 Current Power Units + 8 Power Units 6 Months Ago + 14 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# 454921 = 100% Combination trucks/motor coach buses
Determine VMT per Average Power Unit
30,000 VMT per Average Power Unit = 300,000 VMT From Registration (MCS-150) ÷ 10 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/.