Safety Measurement System - Complete SMS Profile (U.S. DOT# 345957)

CHALK MOUNTAIN SERVICES OF TEXAS LLC

U.S. DOT#: 345957

Address: 1701 RIVER RUN SUITE 200
FORT WORTH, TX 76107
Number of Vehicles: 308
Number of Drivers: 522
Number of Inspections: 90

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 Measure	Not Public	0 Measure	1.20 Measure	0 Measure	Not Public	0 Measure
On-Road Performance Detail
Driver Inspections with Unsafe Driving Violations: 0 Safety Event Group: No Safety Event Grouping Avg. PU × UF: 302.3 Segment: Combination Carrier	Not Public	Driver Inspections: 90 with HOS Compliance Violations: 0 Safety Event Group: 21-100 relevant driver inspections	Vehicle Inspections: 90 with Vehicle Maint. Violations: 16 Safety Event Group: 21-100 relevant vehicle inspections	Driver Inspections: 90 with Drugs/Alcohol Violations: 0 Safety Event Group: No Safety Event Grouping	Not Public	Driver Inspections: 90 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: 24


Violations	Description	# Violations	# OOS Violations	Violation Severity Weight	BASIC

393.100(a)	No or improper load securement	1	1	1	Vehicle Maint.
393.45B2UV	Brake Hose or Tubing Chafing and/or Kinking Under Vehicle	3	1	4	Vehicle Maint.
393.45DLPC	Brake Connections with Leaks - Connection to Power Unit	4	0	4	Vehicle Maint.
393.45DLUV	Brake Connections with Leaks Under Vehicle	1	0	4	Vehicle Maint.
393.47(e)	Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt	3	0	4	Vehicle Maint.
393.53(b)	CMV manufactured after 10/19/94 has an automatic airbrake adjustment system that fails to compensate for wear	3	0	4	Vehicle Maint.
393.55(d)(1)	CMV not equipped with ABS malfunction circuit or signal (Truck-Tractor mfg on/after 3/1/1997; Straight Truck mfg on/after 3/1/1998)	1	0	4	Vehicle Maint.
393.55(d)(3)	No or Defective ABS Malfunction Indicator for towed vehicles on vehicles manufactured after February 2001	1	0	4	Vehicle Maint.
393.75(a)(3)	Tire-flat and/or audible air leak	3	3	8	Vehicle Maint.
393.95(a)	No/discharged/unsecured fire extinguisher	1	0	2	Vehicle Maint.
396.3A1BL	Brake system pressure loss	1	1	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	2	2	0	Vehicle Maint.

Inspection History

Total Inspections: 90


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

7/13/2026	TXV262461662	TX	R722935	TX	TRUCK TRACTOR		3
7/10/2026	TXV262386772	TX	R778624	TX	TRUCK TRACTOR		3
7/4/2026	TXV262459790	TX	R734892	TX	TRUCK TRACTOR		3
Vehicle Maint. Violation: 393.45DLPC Brake Connections with Leaks - Connection to Power Unit						4
6/11/2026	TXV262386624	TX	R823683	TX	TRUCK TRACTOR		3
6/10/2026	TXV262357331	TX	R712737	TX	TRUCK TRACTOR		3
6/1/2026	TXV262323923	TX	R734892	TX	TRUCK TRACTOR		3
5/25/2026	TXV262360756	TX	R757754	TX	TRUCK TRACTOR		3
Vehicle Maint. Violation: 393.55(d)(3) No or Defective ABS Malfunction Indicator for towed vehicles on vehicles manufactured after February 2001						4
5/25/2026	TXV262360757	TX	R747756	TX	TRUCK TRACTOR		3
4/1/2026	TXV262294889	TX	R712738	TX	TRUCK TRACTOR		3
3/12/2026	TXV262233097	TX	R783626	TX	TRUCK TRACTOR		3
3/12/2026	TXV262199423	TX	R778624	TX	TRUCK TRACTOR		3
2/9/2026	TXV262201496	TX	R819770	TX	TRUCK TRACTOR		3
12/28/2025	TXV252145443	TX	R742206	TX	TRUCK TRACTOR		2
12/26/2025	TXV252140865	TX	R712742	TX	TRUCK TRACTOR		2
12/24/2025	TXV252140864	TX	R747756	TX	TRUCK TRACTOR		2
11/24/2025	TXV252107819	TX	BYR69018	TX	TRUCK TRACTOR		2
11/23/2025	TXV252080365	TX	R818858	TX	TRUCK TRACTOR		2
11/23/2025	TXV252080366	TX	R758508	TX	TRUCK TRACTOR		2
11/18/2025	TXV252054809	TX	R748394	TX	TRUCK TRACTOR		2
Vehicle Maint. Violation: 393.75(a)(3) Tire-flat and/or audible air leak (OOS)						8 + 2 (OOS)
11/9/2025	TXV252111293	TX	R734894	TX	TRUCK TRACTOR		2
10/24/2025	TXV252027107	TX	R719591	TX	TRUCK TRACTOR		2
10/22/2025	TXV252077081	TX	R741951	TX	TRUCK TRACTOR		2
10/17/2025	TXV252037432	TX	R719310	TX	TRUCK TRACTOR		2
9/1/2025	TXV251987756	TX	R731523	TX	TRUCK TRACTOR		2
8/31/2025	TXV252006520	TX	R718350	TX	TRUCK TRACTOR		2
8/28/2025	TXV251976764	TX	R719306	TX	TRUCK TRACTOR		2
Vehicle Maint. Violation: 393.53(b) CMV manufactured after 10/19/94 has an automatic airbrake adjustment system that fails to compensate for wear						4
Vehicle Maint. Violation: 393.47(e) Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt						4
Vehicle Maint. Violation: 396.3(a)1BOS BRAKES OUT OF SERVICE: The number of defective brakes is equal to or greater than 20 percent of the service brakes on the vehicle or combination (OOS)						0 + 2 (OOS)
8/28/2025	TXV251997711	TX	R752941	TX	TRUCK TRACTOR		2
Vehicle Maint. Violation: 393.53(b) CMV manufactured after 10/19/94 has an automatic airbrake adjustment system that fails to compensate for wear						4
Vehicle Maint. Violation: 393.47(e) Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt						4
Vehicle Maint. Violation: 396.3(a)1BOS BRAKES OUT OF SERVICE: The number of defective brakes is equal to or greater than 20 percent of the service brakes on the vehicle or combination (OOS)						0 + 2 (OOS)
8/21/2025	TXV251982641	TX	R722935	TX	TRUCK TRACTOR		2
8/15/2025	TXV251983924	TX	R747752	TX	TRUCK TRACTOR		2
8/15/2025	TXV251983925	TX	R773167	TX	TRUCK TRACTOR		2
8/6/2025	TXV251920724	TX	R752941	TX	TRUCK TRACTOR		2
Vehicle Maint. Violation: 393.45DLPC Brake Connections with Leaks - Connection to Power Unit						4
8/6/2025	TXV251976723	TX	R734897	TX	TRUCK TRACTOR		2
7/13/2025	TXV251923239	TX	R712739	TX	TRUCK TRACTOR		1
7/11/2025	TXV251943558	TX	R748391	TX	TRUCK TRACTOR		1
7/9/2025	TXV251944340	TX	R752942	TX	TRUCK TRACTOR		1
7/8/2025	TXV251943534	TX	R773167	TX	TRUCK TRACTOR		1
7/6/2025	TXV251943748	TX	R748388	TX	TRUCK TRACTOR		1
7/6/2025	TXV251943619	TX	R719306	TX	TRUCK TRACTOR		1
7/5/2025	TXV251909011	TX	R687741	TX	TRUCK TRACTOR		1
7/2/2025	TXV251933470	TX	R718348	TX	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.45DLPC Brake Connections with Leaks - Connection to Power Unit						4
6/27/2025	TXV251872810	TX	R748387	TX	TRUCK TRACTOR		1
6/22/2025	TXV251876126	TX	R712743	TX	TRUCK TRACTOR		1
6/18/2025	TXV251914629	TX	R748393	TX	TRUCK TRACTOR		1
6/18/2025	TXV251914628	TX	R712737	TX	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.45B2UV Brake Hose or Tubing Chafing and/or Kinking Under Vehicle (OOS)						4 + 2 (OOS)
Vehicle Maint. Violation: 396.3A1BL Brake system pressure loss (OOS)						4 + 2 (OOS)
6/17/2025	TXV251854460	TX	R747756	TX	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.45DLUV Brake Connections with Leaks Under Vehicle						4
Vehicle Maint. Violation: 393.45DLPC Brake Connections with Leaks - Connection to Power Unit						4
4/3/2025	TXV251800542	TX	R587726	TX	TRUCK TRACTOR		1
1/26/2025	TXV251718696	TX	R734898	TX	TRUCK TRACTOR		1
1/17/2025	TXV251605666	TX	R731523	TX	TRUCK TRACTOR		1
1/13/2025	TXV251747194	TX	R587726	TX	TRUCK TRACTOR		1
1/8/2025	TXV251746473	TX	R731526	TX	TRUCK TRACTOR		1
1/7/2025	TXV251655711	TX	R741951	TX	TRUCK TRACTOR		1
1/6/2025	TXV251745947	TX	R757759	TX	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.45B2UV Brake Hose or Tubing Chafing and/or Kinking Under Vehicle						4
12/20/2024	TXV241731538	TX	R670906	TX	TRUCK TRACTOR		1
11/27/2024	TXV241711162	TX	R587718	TX	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.55(d)(1) CMV not equipped with ABS malfunction circuit or signal (Truck-Tractor mfg on/after 3/1/1997; Straight Truck mfg on/after 3/1/1998)						4
11/21/2024	TXV241660804	TX	R718349	TX	TRUCK TRACTOR		1
11/16/2024	TXV241669591	TX	R718350	TX	TRUCK TRACTOR		1
11/11/2024	TXV241682928	TX	R587726	TX	TRUCK TRACTOR		1
11/10/2024	TXV241692295	TX	6629E12	TX	TRUCK TRACTOR		1
11/7/2024	TXV241682875	TX	R687741	TX	TRUCK TRACTOR		1
11/6/2024	TXV241609952	TX	R747749	TX	TRUCK TRACTOR		1
10/30/2024	TXV241671680	TX	R748390	TX	TRUCK TRACTOR		1
10/26/2024	TXV241655769	TX	R752947	TX	TRUCK TRACTOR		1
10/23/2024	TXV241620983	TX	R561467	TX	TRUCK TRACTOR		1
10/23/2024	TXV241655138	TX	R734896	TX	TRUCK TRACTOR		1
10/23/2024	TXV241605856	TX	R747752	TX	TRUCK TRACTOR		1
10/22/2024	TX6ZP89DIR4V	TX	R752944	TX	TRUCK TRACTOR		1
10/21/2024	TXV241656183	TX	R719735	TX	TRUCK TRACTOR		1
10/19/2024	TXV241655458	TX	R577573	TX	TRUCK TRACTOR		1
10/16/2024	TXV241575209	TX	R747750	TX	TRUCK TRACTOR		1
10/8/2024	TXV241620911	TX	R752944	TX	TRUCK TRACTOR		1
10/5/2024	TXV241620587	TX	R747753	TX	TRUCK TRACTOR		1
10/5/2024	TXV241603546	TX	R747749	TX	TRUCK TRACTOR		1
10/4/2024	TXV241620333	TX	R577571	TX	TRUCK TRACTOR		1
10/1/2024	TX6Z4C9DIP6X	TX	R748392	TX	TRUCK TRACTOR		1
9/26/2024	TXV241507649	TX	R747750	TX	TRUCK TRACTOR		1
9/25/2024	TXV241559088	TX	R722938	TX	TRUCK TRACTOR		1
9/17/2024	TX6YQB9DIP6A	TX	R747751	TX	TRUCK TRACTOR		1
8/29/2024	TXV241525251	TX	R741950	TX	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.100(a) No or improper load securement (OOS)						1 + 2 (OOS)
8/15/2024	TXV241489767	TX	R577577	TX	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.75(a)(3) Tire-flat and/or audible air leak (OOS)						8 + 2 (OOS)
8/13/2024	TXV241344316	TX	R734895	TX	TRUCK TRACTOR		1
8/8/2024	TXV241497892	TX	R579549	TX	TRUCK TRACTOR		1
8/7/2024	TXV241503600	TX	R579549	TX	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.53(b) CMV manufactured after 10/19/94 has an automatic airbrake adjustment system that fails to compensate for wear						4
Vehicle Maint. Violation: 393.47(e) Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt						4
Vehicle Maint. Violation: 393.45B2UV Brake Hose or Tubing Chafing and/or Kinking Under Vehicle						4
8/6/2024	TXV241497886	TX	R718345	TX	TRUCK TRACTOR		1
8/6/2024	TXV241497890	TX	R687741	TX	TRUCK TRACTOR		1
8/6/2024	TXV241500334	TX	R708019	TX	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.75(a)(3) Tire-flat and/or audible air leak (OOS)						8 + 2 (OOS)
8/4/2024	TXV241457371	TX	R741950	TX	TRUCK TRACTOR		1
8/3/2024	TXV241502682	TX	R722936	TX	TRUCK TRACTOR		1
8/2/2024	TXV241310039	TX	R718349	TX	TRUCK TRACTOR		1
8/2/2024	TXV241502417	TX	R561690	TX	TRUCK TRACTOR		1
8/1/2024	TXV241436459	TX	R708167	TX	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.95(a) No/discharged/unsecured fire extinguisher						2

Reviewed-Not Preventable Crash Activity (vehicles involved in crashes)

Total Number of Crashes: 4


Report			Vehicle		Crash
Date	Number	State	Plate Number	Plate State	Fatal	Inj.	Tow.	HM

2/5/2026	TX7D6BHQE1MZ	TX	R747752	TX	0	0	Yes	No
7/19/2025	TX77C6HQE1SS	TX	R752940	TX	0	1	Yes	No
6/16/2025	TX76LEHQE1DS	TX	R670905	TX	0	0	Yes	No
12/9/2024	TX71AEHQE1HR	TX	R734893	TX	0	1	Yes	No

Crashes Included in SMS (vehicles involved in crashes)

Total Number of Crashes: 6


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)

4/5/2026	TX7EOBHQE1E9	TX	R747754	TX	0	0	Yes	No	1	3	3
3/18/2026	TX7EOEHQE1FI	TX	R712743	TX	0	1	Yes	No	2	3	6
3/8/2026	TX7DZEHQE14H	TX	R734889	TX	0	0	Yes	No	1	3	3
10/12/2025	NM0711439005	NM	R796446	TX	0	1	Yes	No	2	2	4
2/4/2025	NM0711331590	NM	R597039	TX	0	0	Yes	No	1	1	1
9/20/2024	TX6ZEFHQE13P	TX	R553957	TX	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: 1/8/2010 (Compliance Review)
Total Inspections: 90
- Total Inspections without Violations used in SMS: 74
- Total Inspections with Violations used in SMS: 16
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

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 08/15/2026 updated monthly from FMCSA )

No penalties found

Tools/Resources

SMS Methodology How to Improve Request a Data Review

For U.S. DOT# 345957

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: 1/8/2010 (Compliance Review)	Total Inspections: 90 Total inspections without violations used in SMS: 74 Total inspections with violations used in SMS: 16	Total Crashes: 10*
1/8/2010 (Compliance Review) 1/9/2004 (Compliance Review)	# Insp. OOS Driver Inspections 90 0.0% Vehicle Inspections 90 7.8% Placardable HM Inspections 0 0.0% % Placardable HM Inspections 0.0%	Fatal Crashes 0 Injury Crashes 4 Towaway Crashes 6

*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.

302.3 Average PU × Utilization Factor = 302.3 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.

302.3 Average Power Units = 308 Current Power Units + 309 Power Units 6 Months Ago + 290 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# 345957 = 100% Combination trucks/motor coach buses
Determine VMT per Average Power Unit
66,030 VMT per Average Power Unit = 19,962,934 VMT From Registration (MCS-150) ÷ 302.3 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/.