TruckCodex

DIAMANTINA P MONTEMAYOR

USDOT 2787648 • DBA: D&S HAULING • 6434 DAY ST, DALLAS, TX, 75227

ACTIVE
Authority:None on file
Insurance:None on file
BOC-3:Not on file
Safety Rating:Not rated
MCS-150:Never updated
OOS Orders:None

Overview

Company profile from FMCSA Census File

USDOT
2,787,648
Status
ACTIVE
Operation
Intrastate (Non-Hazmat)
State
Texas
Phone
2145844717
Email
[email protected]
Power Units (MCS-150)
6
Drivers (MCS-150)
6
MCS-150 Mileage
40,000
Physical Address
6434 DAY ST, DALLAS, TX, 75227
Contact
Phone: 2145844717

Risk Signals2 flagged

MEDIUM
Elevated vehicle OOS rate: 58.3%
National average is 23.4%. This carrier's vehicle OOS rate is 34.9 percentage points above average.
HIGH
2 fatal crashes in last 24 months
2 total fatalities. See crash history below.

Signals are auto-detected from FMCSA public records. This is not a regulatory determination.

Authority & Insurance

Operating authority, insurance filings, and BOC-3 status

Active Authority
0
Revoked / Inactive
0
Authority Types
0
Insurance Policies
None on file
BOC-3 Filing
Not on file

Operating Authority

fmcsa-authhistApr 5, 2026
No records found

No insurance filings found for this carrier in FMCSA records.

Check FMCSA SAFER for current insurance status

Safety & Inspections

SMS BASIC scores, inspection history, and out-of-service rates

SMS BASIC Scores

Driver Fitness
1%
Drugs / Alcohol
0%
Hours of Service
N/A
Unsafe Driving
N/A
Vehicle Maintenance
22%

Higher percentile = worse safety performance relative to peers. Scores at or above 75% trigger FMCSA alerts.

Inspections
12
Violations
96
12 OOS
Vehicle OOS %
58.3%
Above nat'l avg (23.4%)
Driver OOS %
8.3%
Above nat'l avg (6.7%)
Power Units (MCS-150)
6
Drivers (MCS-150)
6
Crash Records
2

Inspection Activity (24 months)

Monthly inspection counts with OOS months highlighted. Hover bars for details.

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
1
Jul
1
Aug
3
Sep
1
Oct
2
Nov
Dec
1
Jan
Feb
3
Mar
Apr
Clean monthMonth with OOSBased on latest 12 of 12 inspection records

Inspection Activity Map

1 state • 12 inspections

🚛
None Low Medium High🚛 Home base

Violation Summary (96 violations from 12 inspections)

fmcsa-inspection-file
Violation Summary (96 violations from 12 inspections)
CodeDescription# Violations# OOSSeverity WtBASIC
FMCSR:393.47ESlack adjuster defective1307Vehicle Maintenance
FMCSR:393.9Inoperable Required Lamp100—Vehicle Maintenance
FMCSR:393.53BSteering system components worn707Vehicle Maintenance
FMCSR:393.55ECoupling device/towing methods defective608Vehicle Maintenance
FMCSR:396.3A1BOSBRAKES OUT OF SERVICE: The number of defective brakes is equal to or greater than 20 percent of the service brakes on the vehicle or combination55—Vehicle Maintenance
FMCSR:396.3A1Inspection repair and maintenance of parts and accessories40—Vehicle Maintenance
FMCSR:392.2RGOperating a CMV while ill or fatigued408Unsafe Driving
FMCSR:393.48AInoperative/defective brakes308Vehicle Maintenance
FMCSR:393.9TSInoperative turn signal30—Vehicle Maintenance
FMCSR:396.5BFuel system leak307Vehicle Maintenance
FMCSR:393.11Lighting devices/reflectors303Vehicle Maintenance
FMCSR:393.205CWheel fasteners loose and/or missing21—Vehicle Maintenance
FMCSR:393.78Windshield condition defective204Vehicle Maintenance
FMCSR:396.3A1BBrakes (general) Explain:20—Vehicle Maintenance
FMCSR:393.55C1Coupling device/towing methods defective208Vehicle Maintenance
FMCSR:393.9HInoperable head lamps20—Vehicle Maintenance
FMCSR:393.55D2Coupling device/towing methods defective208Vehicle Maintenance
FMCSR:393.55C2Coupling device/towing methods defective208Vehicle Maintenance
FMCSR:393.75CTire tread depth insufficient (other axles)205Vehicle Maintenance
FMCSR:393.95BEmergency equipment - warning devices missing204Vehicle Maintenance
FMCSR:393.75A1Tire-ply or belt material exposed20—Vehicle Maintenance
FMCSR:393.95AEmergency equipment - fire extinguisher missing/defective205Vehicle Maintenance
FMCSR:393.45B2UVBrake tubing/hoses inadequate207Vehicle Maintenance
FMCSR:396.3A1BLBrake system pressure loss11—Vehicle Maintenance
FMCSR:393.55D1Coupling device/towing methods defective108Vehicle Maintenance
FMCSR:393.207ASuspension defective117Vehicle Maintenance
FMCSR:393.209EPower steering violations10—Vehicle Maintenance
FMCSR:393.209DWheel fasteners loose/missing118Vehicle Maintenance
FMCSR:393.207FAir suspension pressure loss10—Vehicle Maintenance
FMCSR:383.23A2Operating a CMV without a CDL11—Driver Fitness
FMCSR:393.45B2PCBrake tubing/hoses inadequate107Vehicle Maintenance
FMCSR:393.11TLLighting devices/reflectors103Vehicle Maintenance
FMCSR:393.51Steering wheel free play excessive116Vehicle Maintenance
FMCSR:393.75A3-TAOLTires - All others leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS11—Vehicle Maintenance

Peer Context

This carrier vs national averages. Lower is better for all metrics.

Vehicle OOS Rate
58.3%vs nat'l 23.4%
+34.9 pts above avg
Driver OOS Rate
8.3%vs nat'l 6.7%
+1.6 pts above avg
Violations / Inspection
8.00vs nat'l 1.80
+6.20 above avg

National averages: vehicle OOS 23.4%, driver OOS 6.7%, violations per inspection ~1.8. Based on FMCSA MCSAP program data.

Inspection History (12 inspections)

fmcsa-inspectionsApr 5, 2026
Inspection History (12 inspections)
DateReport #StationStateLevelVehicleViolationsTop CodesOOS
Mar 27, 202687466731US-0380 IN COLLIN CO. (628-656TXLevel 1KW TRUCK TRACTOR11393.48A, 393.47E, 393.53BYes
Mar 19, 202687373517US380 DECATUR SCALETXLevel 1KW TRUCK TRACTOR7393.47E, 393.53B, 393.78Yes
Mar 19, 202687397697US-0380 IN DENTON CO. (592-626TXLevel 1TRVS SEMI-TRAILER4393.9, 393.9TS, 396.3A1No
Jan 20, 202686877028RoadsideTXLevel 2KW TRUCK TRACTOR5392.2RG, 393.207A, 393.9HYes
Nov 6, 202586299776SH-0005 IN COLLIN CO. (224-246TXLevel 1OTHR SEMI-TRAILER14393.9, 396.5B, 393.11Yes
Nov 4, 2025862466551732 US69TXLevel 2CLEM SEMI-TRAILER4393.55C2, 393.75C, 393.9HNo
Oct 16, 202586097043US-0380 IN COLLIN CO. (628-656TXLevel 2EGLR STRAIGHT TRUCK7393.9, 392.2RG, 393.11Yes
Sep 29, 202585971375RoadsideTXLevel 2KW TRUCK TRACTOR3396.5B, 393.95B, 393.9No
Sep 3, 202585713219US-0380 IN COLLIN CO. (628-656TXLevel 1TRVS SEMI-TRAILER10393.47E, 396.3A1BOS, 396.3A1BYes
Sep 2, 202585673737IH-0635 IN DALLAS CO. (0-35)TXLevel 2CLEM SEMI-TRAILER12393.47E, 392.2RG, 393.11No
Aug 8, 202585496584SH-0289 IN COLLIN CO. (228-254TXLevel 1CLMC SEMI-TRAILER13393.45B2UV, 393.47E, 393.9Yes
Jul 23, 202585322499SH-0078 IN COLLIN CO. (234-272TXLevel 1TRVS SEMI-TRAILER6393.75A3-TAOL, 393.48A, 393.75A1Yes

Inspection analytics

Monthly cadence, frequent stations, and violation mix

Inspections per month (24 mo)

12 total · 66.7% OOS
2025-072026-03
InspectionsOOS

Most frequent inspection stations

US-0380 IN COLLIN CO. (628-6563 · 3 OOS
IH-0635 IN DALLAS CO. (0-35)1
SH-0005 IN COLLIN CO. (224-2461 · 1 OOS
SH-0078 IN COLLIN CO. (234-2721 · 1 OOS
SH-0289 IN COLLIN CO. (228-2541 · 1 OOS
US-0380 IN DENTON CO. (592-6261
1732 US691
US380 DECATUR SCALE1 · 1 OOS

Violations by BASIC category

Driver Fitness1 · 1 OOS

Recent Crashes

2 crash records from FMCSA Crash File

Total Crashes
2
Fatalities
2
Fatal crashes on record
Injuries
0
Tow-Aways
2

Crash History (2 records)

fmcsa-crash-fileApr 5, 2026
Crash History (2 records)
DateStateSeverityFatalitiesInjuriesCityLocationVINCarrier Name at Crash
Nov 10, 2025TXFATAL10BRIDGEPORTS 3300 STATE HWY 101...405742DIAMANTINA P MONTEMAYOR
Nov 6, 2025TXFATAL10MCKINNEYS MCDONALD ST...329956DIAMANTINA P MONTEMAYOR

Compliance Timeline

2 events merged from authority, insurance, enforcement, OOS, crash, MCS-150, and safety rating records

Nov 10, 2025
Crash
Fatal crash in TX
1 fatality, 0 injuries
Nov 6, 2025
Crash
Fatal crash in TX
1 fatality, 0 injuries

Related Records

Related records

StateAll entities in Texas
Browse carriers, brokers, and FFs in TX
CityEntities in DALLAS, TX
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Crashes2 crash records
FMCSA Crash File
Inspections12 inspection records
Full inspection history
StationUS-0380 IN COLLIN CO. (628-656
3 inspections at this station
StationUS380 DECATUR SCALE
1 inspection at this station
StationUS-0380 IN DENTON CO. (592-626
1 inspection at this station
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Data sources & freshness

FMCSA Company Census File
Generated from 24-hour old database. Contact info and fleet counts may lag.
Updated 1 weeks ago
FMCSA Authority History
Updated 1 weeks ago
FMCSA Insurance Filings
Updated 1 weeks ago
FMCSA Vehicle Inspection File
Updated 1 weeks ago
Refresh dataLast updated: Apr 5, 2026