Freight Carrier · Conroe, TX

SOUTHERN MAIL SERVICE INC

2505 N FRAZIER · Conroe, TX 77303

AUTHORIZED FOR:
(800) 958-5844 Tap to call
  • MC #1535071
  • USDOT #172954 USDOT Active
  • 361
    Power Units
  • 350
    Drivers
  • Carrier
    Entity Type

About this carrier

SOUTHERN MAIL SERVICE INC is a Conroe, TX freight carrier that is authorized for: in the state of Texas. This company has 361 truck(s) in their fleet and 350 truck drivers. Their motor carrier number is MC-1535071 and their USDOT number is 172954.

Sourced from FMCSA SAFER · last filed 05/13/2026 · last updated Oct 21, 2026.

Carrier Details

  • Operating Status AUTHORIZED FOR:
  • MCS-150 Filed 05/13/2026
  • MCS-150 Mileage 35,000,000 (2026)

Authority & Operations

Operation Classification
  • Authorized for Hire
Carrier Operation
  • Interstate

Cargo Authorized

  • General Freight
  • U.S. Mail
  • Paper Products

Operating Territory

Inspection activity   Inspected in 21 states over the past 24 months: TX (70), NM (13), LA (11), IL (4), TN (3), WA (3), PA (3), AZ (3), MS (2), UT (2), AR (2), AL (2), +9 more. Home base: Conroe, Texas.

Safety Record

17 Severe Violations Updated Oct 15, 2026

Crashes (24 mo)

  • 3
    Fatal
  • 11
    Injury
  • 12
    Tow
  • 26
    Total

Behavior Categories (BASICs)

CategoryMeasureViolations Unsafe Driving 0.22 5 Crash Indicator Not Public — Hours of Service 0.01 2 Vehicle Maintenance 3.25 30 Drugs / Alcohol 0 0 Hazmat Not Public — Driver Fitness 0.04 1

Inspection Summary

  • 128
    Total
  • 90
    Clean
  • 38
    With violations

24-month window ending Sep 25, 2026

Violations Cited 35 unique codes

Critical 13

  • 392.2-SLLS4State/Local Laws - Speeding 15 or more miles per hour over the speed limit2× SW 10
  • 393.75A3-TAOLTISTires - All others, leaking in tread area and inflation less than 50% of the maximum inflation pressure on tire equipped with ATIS4× OOS×4 SW 8
  • 393.75(a)(3)Tire-flat and/or audible air leak3× OOS×3 SW 8
  • 393.75A3-TAOLTires - All others, leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS3× OOS×3 SW 8
  • 393.75(a)Flat tire or fabric exposed1× OOS×1 SW 8
  • 393.75A1-TFSMFTires - Front, sidewall is cut/worn/damaged exposing ply cord1× OOS×1 SW 8
  • 383.23(a)(2)Operating a CMV without a CDL1× OOS×1 SW 8
  • 393.9A-LTSILighting - Turn signal - Any inoperative on the rearmost vehicle.1× OOS×1 SW 6
  • 393.45B2UVBrake Hose or Tubing Chafing and/or Kinking Under Vehicle5× OOS×2 SW 4
  • 393.45B2PCBrake Hose or Tubing Chafing and/or Kinking - Connection to Power Unit4× OOS×1 SW 4
  • 393.45PCBrake Tubing and Hose Adequacy - Connections to Power Unit1× OOS×1 SW 4
  • 393.45UVBrake Tubing and Hose Adequacy Under Vehicle1× OOS×1 SW 4
  • 396.3(a)1BOSBrake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination1× OOS×1 SW 0

Unsafe Driving 3

  • 392.2-SLLS3State/Local Laws - Speeding 11-14 miles per hour over the speed limit2× SW 7
  • 392.2-SLLTCDState/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g., safety official, signal, sign, light, lane marking, other1× SW 5
  • 392.2CFailure to obey traffic control device1× SW 5

Vehicle Maintenance 18

  • 393.45DLUVBrake Connections with Leaks Under Vehicle2× SW 4
  • 396.17C-PIOperating a CMV without documentation of a periodic inspection1× SW 4
  • 393.55(d)(3)No or Defective ABS Malfunction Indicator for towed vehicles on vehicles manufactured after February 20011× SW 4
  • 393.55E-BAir Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1, 19981× SW 4
  • 393.55(e)No or Defective ABS Malfunction Indicator Lamp for trailer manufactured after 03/01/19981× SW 4
  • 393.53(b)CMV manufactured after 10/19/94 has an automatic airbrake adjustment system that fails to compensate for wear1× SW 4
  • 393.47(e)Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt1× SW 4
  • 393.11TLTruck-Tractor lower rear mud flaps retroreflective sheeting / reflex reflective material requirements for vehicles manufactured after July 19971× SW 3
  • 393.11No or defective lighting devices or reflective material as required1× SW 3
  • 393.9Inoperable Required Lamp5× SW 2
  • 393.9A-LCLLighting - Clearance lamp(s) inoperative2× SW 2
  • 393.9A-LSMLLighting - Side marker lamp(s) inoperative2× SW 2
  • 396.3(a)(1)Inspection, repair and maintenance of parts and accessories2× SW 2
  • 393.203C-CBPCab and Body Parts - Hood not securely fastened1× SW 2
  • 393.203(b)Cab/body improperly secured to frame1× SW 2
  • 393.95(f)Emergency Equipment - Stopped vehicle warning devices missing or improper1× SW 2
  • 393.9A-LILLighting - Identification lamp(s) inoperative1× SW 2
  • 393.9A-LLPLLighting - License plate lamp inoperative1× SW 2

Hours of Service 1

  • 395.22H4Driver failed to maintain supply of blank drivers records of duty status graph-grids2× SW 1

Locations

Physical Address
SOUTHERN MAIL SERVICE INC
2505 N FRAZIER
CONROE, TX 77303
Mailing Address
SOUTHERN MAIL SERVICE INC
P O BOX 2145
HOUSTON, TX 77252

Location on Map