ROCK N A MATERIALS LLC
- 3425821
-
110 POSEY RD
SAN MARCOS, TX 78666 - 2
- 2
- 8
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 October 30, 2026
-
Unsafe Driving
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Not Public Crash Indicator
-
Hours-of-Service Compliance
-
Vehicle Maintenance
-
Controlled Substances and Alcohol
-
Not Public Hazardous Materials Compliance
-
Driver Fitness
| On-Road Performance | ||||||
|---|---|---|---|---|---|---|
| 0 | Not Public | 0 | 9.83 | 0 | Not Public | 0 |
| On-Road Performance Detail | ||||||
|
0
No Safety Event Grouping
2.3
Combination Carrier
|
Not Public |
8
0
3-10 relevant driver inspections
|
7
6
5-10 relevant vehicle inspections
|
8
0
No Safety Event Grouping
|
Not Public |
8
0
5-10 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: 22
| Violations | Description | # Violations | # OOS Violations | Violation Severity Weight | BASIC |
|---|---|---|---|---|---|
| 393.11TL | Truck-Tractor lower rear mud flaps retroreflective sheeting / reflex reflective material requirements for vehicles manufactured after July 1997 | 1 | 0 | 3 | Vehicle Maint. |
| 393.11TU | Truck-Tractor upper body corner requirements for retroreflective sheeting or reflex reflective material for vehicles manufactured after July 1997 | 1 | 0 | 3 | Vehicle Maint. |
| 393.11UR | Upper Rear retroreflective sheeting or reflex reflecting material requirements for vehicles manufactured after December 1993 | 2 | 0 | 3 | Vehicle Maint. |
| 393.130 | No/improper heavy vehicle/machine securement | 1 | 1 | 1 | Vehicle Maint. |
| 393.43(d) | No or defective automatic trailer brake | 1 | 1 | 4 | Vehicle Maint. |
| 393.45B2UV | Brake Hose or Tubing Chafing and/or Kinking Under Vehicle | 1 | 0 | 4 | Vehicle Maint. |
| 393.48(a) | Inoperative/defective brakes | 1 | 0 | 4 | Vehicle Maint. |
| 393.55(e) | No or Defective ABS Malfunction Indicator Lamp for trailer manufactured after 03/01/1998 | 3 | 0 | 4 | Vehicle Maint. |
| 393.71(k) | Lower saddle-mount - Missing Fasteners, loose, cracked, or excessive movement | 1 | 0 | 3 | Vehicle Maint. |
| 393.75(a)(3) | Tire-flat and/or audible air leak | 1 | 1 | 8 | Vehicle Maint. |
| 393.78 | Wipers - Inoperative / missing / damaged wipers | 1 | 0 | 1 | Vehicle Maint. |
| 393.95(a) | No/discharged/unsecured fire extinguisher | 2 | 0 | 2 | Vehicle Maint. |
| 393.95(f) | Emergency Equipment - Stopped vehicle warning devices missing or improper | 1 | 0 | 2 | Vehicle Maint. |
| 393.9T | Inoperable tail lamp | 1 | 0 | 6 | Vehicle Maint. |
| 396.17(c) | Operating a CMV without proof of a periodic inspection | 2 | 0 | 4 | Vehicle Maint. |
| 396.3(a)(1) | Inspection, repair and maintenance of parts and accessories | 1 | 1 | 2 | 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: 8
| Report | Vehicle | Measure | |||||
|---|---|---|---|---|---|---|---|
| Inspection Date | Number | State | Plate Number | Plate State | Type |
Severity Weight (SW) |
Time Weight (TiW) |
| 9/1/2026 | TXV262560601 | TX | 1M21838 | TX | TRUCK TRACTOR | 3 | |
| 6/30/2026 | TXV262416442 | TX | 1M70500 | TX | TRUCK TRACTOR | 3 | |
| 396.3(a)(1) Inspection, repair and maintenance of parts and accessories (OOS) | 2 + 2 (OOS) | ||||||
| 6/18/2026 | TXV262435226 | TX | 1M70500 | TX | TRUCK TRACTOR | 3 | |
| 393.55(e) No or Defective ABS Malfunction Indicator Lamp for trailer manufactured after 03/01/1998 | 4 | ||||||
| 6/5/2026 | TXV262309251 | TX | 1L44916 | TX | TRUCK TRACTOR | 3 | |
| 393.71(k) Lower saddle-mount - Missing Fasteners, loose, cracked, or excessive movement | 3 | ||||||
| 393.55(e) No or Defective ABS Malfunction Indicator Lamp for trailer manufactured after 03/01/1998 | 4 | ||||||
| 393.45B2UV Brake Hose or Tubing Chafing and/or Kinking Under Vehicle | 4 | ||||||
| 393.11UR Upper Rear retroreflective sheeting or reflex reflecting material requirements for vehicles manufactured after December 1993 | 3 | ||||||
| 393.95(a) No/discharged/unsecured fire extinguisher | 2 | ||||||
| 396.17(c) Operating a CMV without proof of a periodic inspection | 4 | ||||||
| 393.11TL Truck-Tractor lower rear mud flaps retroreflective sheeting / reflex reflective material requirements for vehicles manufactured after July 1997 | 3 | ||||||
| 393.78 Wipers - Inoperative / missing / damaged wipers | 1 | ||||||
| 5/5/2026 | TXV262252902 | TX | 1L44916 | TX | TRUCK TRACTOR | 3 | |
| 393.48(a) Inoperative/defective brakes | 4 | ||||||
| 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) | ||||||
| 4/13/2026 | TXV262309154 | TX | 1M70500 | TX | TRUCK TRACTOR | 2 | |
| 393.75(a)(3) Tire-flat and/or audible air leak (OOS) | 8 + 2 (OOS) | ||||||
| 393.11TU Truck-Tractor upper body corner requirements for retroreflective sheeting or reflex reflective material for vehicles manufactured after July 1997 | 3 | ||||||
| 393.11UR Upper Rear retroreflective sheeting or reflex reflecting material requirements for vehicles manufactured after December 1993 | 3 | ||||||
| 393.55(e) No or Defective ABS Malfunction Indicator Lamp for trailer manufactured after 03/01/1998 | 4 | ||||||
| 1/15/2026 | TXV262178577 | TX | 1L44916 | TX | TRUCK TRACTOR | 2 | |
| 5/12/2025 | TXV251876992 | TX | SBT5487 | TX | STRAIGHT TRUCK | 1 | |
| 393.130 No/improper heavy vehicle/machine securement (OOS) | 1 + 2 (OOS) | ||||||
| 393.43(d) No or defective automatic trailer brake (OOS) | 4 + 2 (OOS) | ||||||
| 393.95(a) No/discharged/unsecured fire extinguisher | 2 | ||||||
| 393.95(f) Emergency Equipment - Stopped vehicle warning devices missing or improper | 2 | ||||||
| 396.17(c) Operating a CMV without proof of a periodic inspection | 4 | ||||||
| 393.9T Inoperable tail lamp | 6 | ||||||
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.
- 10/14/2026 (Compliance Review)
-
8
- 2
- 6
- : 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 DetailsCarrier Registration
Carrier Registration Details Subject to General Threshold Update Registration InfoInspection Selection System
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.
Enforcement Cases
(Six years as of 11/12/2026 updated monthly from FMCSA )
No penalties found
Tools/Resources
SMS Methodology How to Improve Request a Data ReviewFor U.S. DOT# 3425821
Complete SMS Profile Carrier History DownloadsUse 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/.