Safety Measurement System - Complete SMS Profile (U.S. DOT# 2315159)

RATTLESNAKE FIELD SERVICES LLC

U.S. DOT#: 2315159

Address: 1094 WEST RIVER ROAD
WORLAND, WY 82401
Number of Vehicles: 10
Number of Drivers: 10
Number of Inspections: 2

Safety Rating & OOS Rates

(As of 01/26/2026 updated daily from SAFER )

Not Rated

Out of Service Rates

Type	OOS %	National Avg %
Vehicle	50.0	23.2
Driver	100.0	6.4
Hazmat		4.4

Licensing and Insurance

(As of 01/26/2026 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
2.44 Measure	Not Public	6 Measure	18 Measure	0 Measure	Not Public	6.50 Measure
On-Road Performance Detail
Driver Inspections with Unsafe Driving Violations: 2 Safety Event Group: No Safety Event Grouping Avg. PU × UF: 18 Segment: Combination Carrier	Not Public	Driver Inspections: 2 with HOS Compliance Violations: 1 Safety Event Group: No Safety Event Grouping	Vehicle Inspections: 2 with Vehicle Maint. Violations: 2 Safety Event Group: No Safety Event Grouping	Driver Inspections: 2 with Drugs/Alcohol Violations: 0 Safety Event Group: No Safety Event Grouping	Not Public	Driver Inspections: 2 with Driver Fitness Violations: 1 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: 20


Violations	Description	# Violations	# OOS Violations	Violation Severity Weight	BASIC

392.16AD	Driver - Failed to use seat belt while operating a CMV.	1	0	7	Unsafe Driving
392.2-INAT	Driver- Inattentive or Distracted Driving.	1	0	5	Unsafe Driving
392.2-SLLML	State/Local Laws - Failure to maintain lane.	1	0	5	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
392.3-F	Fatigue - Operating a commercial motor vehicle while impaired, through fatigue.	1	1	10	HOS Compliance
383.23A2-LCDLN	License (CDL) - Operate a CMV and does not possess a valid CDL.	1	1	8	Driver Fitness
391.41APC	Medical (Certificate) - Operating a property-carrying vehicle without a valid medical certificate in possession or on file with the state drivers licensing agency when medical certification is required.	1	1	1	Driver Fitness
392.9A2-C	Cargo - Vehicle components or dunnage not secured.	1	1	1	Vehicle Maint.
393.205C-WR	Wheel/Rim - Wheel fasteners loose/missing/ineffective/broken.	1	0	2	Vehicle Maint.
393.41-BNPB	Brake - Inoperative or missing parking brake on power unit.	1	1	4	Vehicle Maint.
393.43DBMA	Brake - Breakaway not attached to the towing vehicle.	1	1	4	Vehicle Maint.
393.48A-BIHE	Hydraulic/Electric Brake - Inoperative other than a steering axle.	1	0	4	Vehicle Maint.
393.75C-TAOTD-LT1/32	Tires - Less than 1/32 inch tread depth at 3 locations/2 adjacent tread grooves.	1	1	8	Vehicle Maint.
393.81-H	Horn - Inoperative or defective.	1	0	3	Vehicle Maint.
393.95A1	Emergency Equipment - Fire Extinguishers - no fire extinguisher present or not properly rated.	1	0	2	Vehicle Maint.
393.9A-LRLI	Lighting - Tail lamp - Any inoperative.	1	0	6	Vehicle Maint.
393.9A-LSLI	Lighting - Stop lamps - Any inoperative.	1	0	6	Vehicle Maint.
393.9A-LTSI	Lighting - Turn signal - Any inoperative on the rearmost vehicle.	1	1	6	Vehicle Maint.
396.17C-PI	Operating a CMV without documentation 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.

Inspection History

Total Inspections: 2


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

5/29/2025	WYTAJM000611	WY	20T2798	WY	STRAIGHT TRUCK		2
Vehicle Maint. Violation: 392.9A2-C Cargo - Vehicle components or dunnage not secured (OOS)						1 + 2 (OOS)
Vehicle Maint. Violation: 393.9A-LTSI Lighting - Turn signal - Any inoperative on the rearmost vehicle. (OOS)						6 + 2 (OOS)
Vehicle Maint. Violation: 393.9A-LSLI Lighting - Stop lamps - Any inoperative.						6
Vehicle Maint. Violation: 393.9A-LRLI Lighting - Tail lamp - Any inoperative						6
Vehicle Maint. Violation: 393.81-H Horn - Inoperative or defective						3
Vehicle Maint. Violation: 393.75C-TAOTD-LT1/32 Tires - Less than 1/32 inch tread depth at 3 locations/2 adjacent tread grooves (OOS)						8 + 2 (OOS)
Driver Fitness Violation: 383.23A2-LCDLN License (CDL) - Operate a CMV and does not possess a valid CDL (OOS)						8 + 2 (OOS)
Driver Fitness Violation: 391.41APC Medical (Certificate) - Operating a property-carrying vehicle without a valid medical certificate in possession or on file with the state drivers licensing agency (OOS)						1 + 2 (OOS)
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: 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)
Vehicle Maint. Violation: 393.205C-WR Wheel/Rim - Wheel fasteners loose/missing/ineffective/broken.						2
Vehicle Maint. Violation: 393.41-BNPB Brake - Inoperative or missing parking brake on power unit (OOS)						4 + 2 (OOS)
Vehicle Maint. Violation: 393.43DBMA Brake - Breakaway not attached to the towing vehicle (OOS)						4 + 2 (OOS)
Vehicle Maint. Violation: 393.48A-BIHE Hydraulic/Electric Brake - Inoperative other than a steering axle.						4
4/23/2025	WYTAJM000560	WY	20-459	WY	STRAIGHT TRUCK		2
Vehicle Maint. Violation: 396.17C-PI Operating a CMV without documentation of a periodic inspection						4
Vehicle Maint. Violation: 393.95A1 Emergency Equipment - Fire Extinguishers - no fire extinguisher present or not properly rated.						2
HOS Compliance Violation: 392.3-F Fatigue - Operating a commercial motor vehicle while impaired, through fatigue. (OOS)						10 + 2 (OOS)
Unsafe Driving Violation: 392.2-SLLML State/Local Laws - Failure to maintain lane						5
Unsafe Driving Violation: 392.2-INAT Driver- Inattentive or Distracted Driving						5
Unsafe Driving Violation: 392.16AD Driver - Failed to use seat belt while operating a CMV.						7

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: 1


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)

4/23/2025	WY0202504065	WY	20459	WY	0	1	Yes	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: 2
- Total Inspections without Violations used in SMS: 0
- Total Inspections with Violations used in SMS: 2
Total Crashes* : 1

*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 01/26/2026 updated monthly from FMCSA )

No penalties found

Tools/Resources

SMS Methodology How to Improve Request a Data Review

For U.S. DOT# 2315159

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: None	Total Inspections: 2 Total inspections without violations used in SMS: 0 Total inspections with violations used in SMS: 2	Total Crashes: 1*
	# Insp. OOS Driver Inspections 2 100.0% Vehicle Inspections 2 50.0% Placardable HM Inspections 0 0.0% % Placardable HM Inspections 0.0%	Fatal Crashes 0 Injury Crashes 1 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 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.

18 Average PU × Utilization Factor = 18 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 Average Power Units = 10 Current Power Units + 22 Power Units 6 Months Ago + 22 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# 2315159 = 80% Combination trucks/motor coach buses
Determine VMT per Average Power Unit
547 VMT per Average Power Unit = 9,852 VMT From Registration (MCS-150) ÷ 18 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/.