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FMCSA - Federal Motor Carrier Safety Adminstration

CSA - Compliance, Safety, Accountability

Working Together for Safety.


SMS - Safety Measurement System SMS - Safety Measurement System

JAZ LLC

BLACK DIAMOND OILFIELD SERVICES

  • 2537037
  • 10924 E COTTONWOOD RD
    GARDENDALE, TX 79758
  • 43
  • 45
  • 63

Safety Rating & OOS Rates

(As of 03/18/2026 updated daily from SAFER )

Not Rated

Out of Service Rates

Type OOS % National Avg %
Vehicle 43.3 23.4
Driver 3.2 6.7
Hazmat 4.4

Licensing and Insurance

(As of 03/18/2026 updated hourly from L&I )

Active For-Hire Authority
Type Yes/No MC#/MX#
Property No
Passenger No
Household Goods No
Broker No

Vehicle Maintenance

More Info

On-Road Performance

15.41 How is the measure calculated?

Safety Event Group: 21-100 relevant vehicle inspections

Investigation Results

No Acute/Critical Violations Discovered

Expand Graph

Carrier Measure Over Time

  • Trends

This graph displays a carrier’s measure based on 24 months of on-road performance. Zero indicates the best performance. To see how the measure is calculated click here. To see how the measure relates to percentile click here. Expand for more information.

  • 24
  • 18
  • 12
  • 6
  • 0
  • -6
  • Sep 26
  • Oct 31
  • Nov 28
  • Dec 26
  • Jan 30
  • Feb 27
  • 2025
  • 2025
  • 2025
  • 2025
  • 2026
  • 2026
  Sep 26 2025 Oct 31 2025 Nov 28 2025 Dec 26 2025 Jan 30 2026 Feb 27 2026
Measure 16.76 17.27 17.14 16.88 15.96 15.41
Measure 0 0 0 0 0 0

Violation Summary

Vehicle Maint. Violations: 287

Violations Description # Violations # OOS Violations Violation Severity Weight
393.9 Inoperable Required Lamp 39 2 2
393.55(e) No or Defective ABS Malfunction Indicator Lamp for trailer manufactured after 03/01/1998 25 0 4
393.78 Wipers - Inoperative / missing / damaged wipers. 20 0 1
393.11TL Truck-Tractor lower rear mud flaps retroreflective sheeting / reflex reflective material requirements for vehicles manufactured after July 1997 13 0 3
393.75(a)(3) Tire-flat and/or audible air leak 13 13 8
393.11 No or defective lighting devices or reflective material as required 12 0 3
393.11TU Truck-Tractor upper body corner requirements for retroreflective sheeting or reflex reflective material for vehicles manufactured after July 1997 10 0 3
393.47(e) Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt 8 0 4
393.53(b) CMV manufactured after 10/19/94 has an automatic airbrake adjustment system that fails to compensate for wear 8 0 4
393.9TS Inoperative turn signal 8 3 6
393.75(a)(1) Tire-ply or belt material exposed 7 0 8
393.75(c) Tire-other tread depth less than 2/32 of inch measured in a major tread groove 7 0 8
393.95(a) No/discharged/unsecured fire extinguisher 7 0 2
393.60(c) Windshield - Damaged or Discolored 6 0 1
393.9H Inoperable head lamps 6 0 6
396.5(b) Oil and/or grease leak 6 0 3
392.8 Failing to inspect/use emergency equipment 5 0 2
393.11UR Upper Rear retroreflective sheeting or reflex reflecting material requirements for vehicles manufactured after December 1993 5 0 3
393.207(a) Axle positioning parts defective/missing 5 4 7
393.55(d)(3) No or Defective ABS Malfunction Indicator for towed vehicles on vehicles manufactured after February 2001 5 0 4
396.3(a)1BOS Brake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination. 5 5 0
393.48(a) Inoperative/defective brakes 4 0 4
393.55(c)(1) Truck Tractor manufactured on or after March 1, 1997 not equipped with an antilock brake system. 4 0 4
393.95(f) Emergency Equipment - Stopped vehicle warning devices missing or improper. 4 0 2
393.9T Inoperable tail lamp 4 0 6
396.3A1BL Brake system pressure loss 4 4 4
393.11LR No Lower rear retroreflective sheeting or reflex reflective materials as required for vehicles manufactured after December 1993 3 0 3
393.209(e) Power steering violations 3 0 6
393.45DLPC Brake Connections with Leaks - Connection to Power Unit 3 0 4
393.51 No or defective brake warning device or pressure gauge 3 1 4
393.55(c)(2) CMV other than truck-tractor manufactured on or after March 1, 1998 not equipped with an antilock brake system. 3 0 4
393.81 Horn inoperative 3 0 3
396.3(a)(1) Inspection, repair and maintenance of parts and accessories 3 0 2
396.3A1B Brakes (general) Explain: 3 0 4
392.2WC Wheel (Mud) Flaps missing or defective 2 0 1
393.203(c) Hood not securely fastened 2 0 2
393.207(c) Leaf spring assembly defective/missing 2 2 7
393.45DLUV Brake Connections with Leaks Under Vehicle 2 0 4
393.47(b) Mis-matched brake chambers on same axle 2 2 4
396.17(c) Operating a CMV without proof of a periodic inspection 2 0 4
393.11S Side retroreflective sheeting or reflex reflector requirements for vehicles manufactured after December 1993 1 0 3
393.19 Inoperative/Defective Hazard Warning Lamp 1 0 6
393.205(c) Wheel fasteners loose and/or missing 1 0 2
393.45 Brake tubing and hose adequacy 1 1 4
393.47(a) Inadequate brakes for safe stopping - Brake Lining condition 1 1 4
393.60(d) Windshield / Windows - Tinting permits less than 70% of light transmittance. 1 0 1
393.70B1I Defective latching fasteners - Fasteners on either side of the vehicle are missing or ineffective 1 1 3
393.83(g) Exhaust - Discharging at a point forward or directly below the driver or sleeper compartment. 1 0 1
396.3(a)(1) Brake - Hole in Spring Brake Housing 1 1 4
396.5B-HLOW Hubs - oil and/or Grease Leaking from hub - outer wheel 1 0 2
396.5B-HWSLOW Hubs - Wheel seal leaking - outer wheel 1 0 2

Inspection History

Vehicle Inspections: 63

Please select to view your Inspection History. You can also sort your data by Date, Report Number, Vehicle Type, etc.

(or)
Report Vehicle Measure = Sum of the Total Weight (TotW) Sum of the Time Weight (TiW)
Inspection Date Number State Plate Number Plate State Type Severity Weight
(SW)
Time Weight
(TiW)
Total Weight
(TotW)
Sum of measure weights Sum of measure weights 1,009 129 1,988
TotW TiW
=
1,988 129
= 15.41
More Info

*** The sum of all violation severity weights (violation weight + out-of-service) for this inspection has been capped at 30.

Investigation Results

Vehicle Maint. Acute/Critical Violations: 0

This carrier has no Vehicle Maintenance 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.

  • 7/6/2023 (Compliance Review)
  • 63
    • 2
    • 61
  • : 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

Enforcement Cases

(Six years as of 03/18/2026 updated monthly from FMCSA )

No penalties found

Tools/Resources

SMS Methodology How to Improve Request a Data Review
For U.S. DOT# 2537037
Complete SMS Profile Carrier History Downloads