G4 TANK LINES LLC
G4 TANK LINES LLC (USDOT 4013855) in DENVER, CO — carries a hard disqualifier. FMCSA authority, fleet size, BASIC safety measures, crash and inspection history.
- Has active operating authority that's tenderable today (common or contract).
- Authority revocation is currently pending — carrier may lose operating authority soon.
- Not under an uncleared federal out-of-service or safety action.
- BIPD on file: $1,000,000.
- No cargo insurance on file. Required for many shipper contracts.
- No history of insurance lapses.
- Unrated by FMCSA. Most carriers are unrated — unrated is not the same as unsafe.
- No BASIC alerts in any of the five public SMS categories.
- Driver and vehicle out-of-service rates are at or below the national roadside average.
- No preventable crashes in the last 24 months; recordable crash rate 0 not elevated.
- No fatal crashes in the last 24 months.
- No link to a prior revoked authority.
- Crash Indicator and Hazmat Compliance BASICs are statutorily withheld from public SMS under the FAST Act — their absence is not a clean record; use the crash-risk signals above instead. The Hazmat Compliance BASIC is also withheld for this hazmat carrier.
Built from FMCSA's public Safety Management System data — guidance, not legal advice. Verify directly with the carrier and your cargo policy before tendering.
Authority
- Common authority
- Active
- Contract authority
- Not applicable
Safety & BASIC scorecard
BASIC safety measures
Under the FAST Act, FMCSA publishes an absolute per-category measure (not a 0–100 percentile) for these five BASICs — the alert flag, not the raw number, is the risk signal. The Crash Indicator and Hazmat Compliance BASICs are statutorily withheld from public view.
Last 24 months
Insurance
- BIPD on file
- $1,000,000
- Cargo insurance
- No
- Bond on file
- No
Fleet
- Power units
- 56
- Total drivers
- 55
- Years in business
- 3
- Hazmat authority
- Yes
Crash risk
- Preventable crashes (24 mo)
- 0 of 0 total crash(es)
- Recordable crash rate
- 0
- Driver OOS rate
- 2.5%
- Vehicle OOS rate
- 16.7%
The official Crash Indicator BASIC is withheld from public SMS under the FAST Act — these derived signals stand in for it; their absence is not a clean record.
Compliance & history
- Reincarnation / chameleon
- No prior revoked authority
- Involuntary revocations
- None on file
- Physical address
- No address flags
- Federal OOS / safety action
- None on file
- MCS-150 self-report
- 2026-04-16
- Insurance lapse history
- No lapses on record
- Last compliance review
- None on file
Inspection history (all-time)
Record spans 2023-08-30 → 2026-05-04.
Crash history (last 24 months)
No crashes recorded in the last 24 months.
Violation pattern (all-time, by area)
| Area (49 CFR part) | Violations | Out of service | Most recent |
|---|---|---|---|
Vehicle parts & maintenance 393
|
56 | 12 | 2026-06-03 |
Unsafe driving 392
|
18 | 0 | 2026-06-09 |
Vehicle inspection & repair 396
|
8 | 3 | 2026-06-03 |
Hours of service 395
|
8 | 0 | 2025-08-27 |
Hazardous materials (HMR) 172
|
7 | 0 | 2026-06-09 |
General safety regulations 390
|
2 | 0 | 2023-11-13 |
Hazardous materials (HMR) 173
|
1 | 1 | 2023-11-13 |
Hazardous materials (HMR) 177
|
1 | 1 | 2026-06-03 |
CDL standards 383
|
1 | 1 | 2024-08-12 |
Hazardous materials (HMR) 178
|
1 | 0 | 2025-09-23 |
Operating authority / leasing 376
|
1 | 0 | 2023-11-01 |
Recent violations (last 24 months, worst first)
| Date | Category | Violation | OOS |
|---|---|---|---|
| 2026-04-28 | Vehicle Maintenance | Inoperable head lamps | — |
| 2026-04-28 | Hazardous Materials Compliance | Fail to mark manual remote shutoff device with Emergency Shutoff | — |
| 2026-04-28 | Vehicle Maintenance | Inoperative/defective brakes | — |
| 2026-04-28 | Vehicle Maintenance | No Lower rear retroreflective sheeting or reflex reflective materials as required for vehicles manufactured after Decemb | — |
| 2026-04-28 | Vehicle Maintenance | Upper Rear retroreflective sheeting or reflex reflecting material requirements for vehicles manufactured after December | — |
| 2026-03-10 | Vehicle Maintenance | Inoperable head lamps | — |
| 2026-03-10 | Vehicle Maintenance | Wheel fasteners loose and/or missing | OOS |
| 2026-03-10 | Vehicle Maintenance | Cab front bumper missing/unsecured/protrude | — |
| 2026-02-10 | Vehicle Maintenance | Inoperative turn signal | — |
| 2026-02-10 | Vehicle Maintenance | No or defective lighting devices or reflective material as required | — |
| 2026-01-27 | Vehicle Maintenance | Lighting - Front - Turn signal - inoperative | — |
| 2026-01-27 | Hazardous Materials Compliance | HM (Markings) - Failing to mark a manual remote shut-off device as required | — |
| 2026-01-27 | Vehicle Maintenance | Windshield - Obstructed | — |
| 2025-11-20 | Vehicle Maintenance | Mis-matched brake chambers on same axle | OOS |
| 2025-11-03 | Vehicle Maintenance | Windshield - Damaged or Discolored | — |
| 2025-09-23 | Vehicle Maintenance | Suspension - Deflated air suspension | OOS |
| 2025-09-23 | Hazardous Materials Compliance | HM (Packaging) - DOT 406/407/412 thermal and remote closure. | — |
| 2025-09-23 | Vehicle Maintenance | Drum Brake - Contaminated friction surface on a steering axle | OOS |
| 2025-09-23 | Vehicle Maintenance | Brake - Audible air leak from a brake chamber | — |
| 2025-09-23 | Vehicle Maintenance | Brake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination | OOS |
| 2025-08-27 | Vehicle Maintenance | Tires - All others leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS | OOS |
| 2025-08-27 | Hours-of-Service Compliance | HOS (Property) - Driving beyond the 14 hour after coming on duty following 10 consecutive hours off duty during the curr | — |
| 2025-08-27 | Vehicle Maintenance | Emergency Equipment - Fire Extinguishers - not readily accessible or filled | — |
| 2025-08-27 | Hours-of-Service Compliance | HOS (ELD) - Driver failing to certify the record immediately after the final required entry has been made or corrected f | — |
| 2025-07-04 | Vehicle Maintenance | Tire-flat and/or audible air leak | OOS |
| 2025-07-04 | Vehicle Maintenance | Power steering violations | — |
| 2025-07-04 | Hours-of-Service Compliance | Drivers record of duty status not current | — |
| 2025-07-04 | Hours-of-Service Compliance | ELD cannot transfer ELD records electronically | — |
| 2025-07-04 | Vehicle Maintenance | Truck-Tractor upper body corner requirements for retroreflective sheeting or reflex reflective material for vehicles man | — |
| 2025-07-04 | Vehicle Maintenance | Inoperable Required Lamp | — |
| 2025-07-04 | Vehicle Maintenance | Emergency Equipment - Stopped vehicle warning devices missing or improper | — |
| 2025-06-14 | Vehicle Maintenance | Brake - Inoperative or missing parking brake on power unit | OOS |
| 2025-05-06 | Vehicle Maintenance | Air Brake - Audible air leak at a proper connection | — |
| 2025-05-06 | Vehicle Maintenance | Air Brake - ABS malfunction lamp defective on truck-tractor manufactured on or after March 1 2001 for towed vehicle. | — |
| 2025-05-06 | Vehicle Maintenance | Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1 1998 | — |
| 2025-05-06 | Vehicle Maintenance | Windshield - Damaged or Discolored | — |
| 2025-05-06 | Hours-of-Service Compliance | HOS (ELD) - ELD Form and Manner | — |
| 2025-03-05 | Hazardous Materials Compliance | Placard damaged deteriorated or obscured | — |
| 2025-03-05 | Hazardous Materials Compliance | ER phone number not in compliance with Subpart G | — |
| 2025-03-05 | Vehicle Maintenance | Windshield - Damaged or Discolored | — |
| 2025-02-06 | Vehicle Maintenance | Inoperable head lamps | — |
| 2025-02-06 | Vehicle Maintenance | Brake Out of Adjustment - Roto Clamp (Short & Long) DD-3 or Bolt | — |
| 2025-02-06 | Vehicle Maintenance | CMV manufactured after 10/19/94 has an automatic airbrake adjustment system that fails to compensate for wear | — |
| 2025-01-22 | Vehicle Maintenance | Operating a CMV without documentation of a periodic inspection | — |
| 2025-01-22 | Vehicle Maintenance | Emergency Equipment - Fire Extinguishers - no fire extinguisher present or not properly rated. | — |
| 2024-11-26 | Unsafe Driving | State/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g. safety official signal sign l | — |
| 2024-11-26 | Vehicle Maintenance | Air Brake - Audible air leak at a proper connection | — |
| 2024-11-26 | Vehicle Maintenance | Drum Brake - Inoperative other than a steering axle | — |
| 2024-11-26 | Vehicle Maintenance | Drum Brake - Loose chamber/spider/camshaft support bracket | — |
| 2024-11-26 | Vehicle Maintenance | Air Brake - Truck-tractor manufactured on or after March 1 1997 not equipped with an ABS system. System does not functio | — |
Recent inspections (with violations, newest first)
Showing the 25 most-recent inspections that had violations. Clean inspections aren't listed here — they're counted in the all-time inspection totals above.
2026-06-09 2 violsHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Hazardous materials (HMR) 172 | 328D-HMM | — | — |
| Unsafe driving 392 | 2-SLLEWG3 | — | — |
2026-06-03 8 viols· 3 OOSHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Vehicle parts & maintenance 393 | 45D-B | — | — |
| Vehicle inspection & repair 396 | 3A1-BALR | OOS | — |
| Vehicle parts & maintenance 393 | 45B2-B-AIR | — | — |
| Vehicle parts & maintenance 393 | 9A-HLLH | — | — |
| Vehicle parts & maintenance 393 | 78A-WS | — | — |
| Vehicle parts & maintenance 393 | 75A3-TAOL | OOS | — |
| Hazardous materials (HMR) 177 | 817A-HMSP | OOS | — |
| Unsafe driving 392 | 16-D | — | — |
2026-06-03 2 viols
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Unsafe driving 392 | 2-SLLSR | — | — |
| Vehicle inspection & repair 396 | 17C-PI | — | — |
2026-05-04 1 viol
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Unsafe driving 392 | 2-SLLIRP | — | — |
2026-04-28 5 violsHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Hazardous materials (HMR) 172 | 328D | — | — |
| Vehicle parts & maintenance 393 | 11LR | — | — |
| Vehicle parts & maintenance 393 | 11UR | — | — |
| Vehicle parts & maintenance 393 | 48A | — | — |
| Vehicle parts & maintenance 393 | 9H | — | — |
2026-03-10 3 viols· 1 OOSHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Vehicle parts & maintenance 393 | 203E | — | — |
| Vehicle parts & maintenance 393 | 205C | OOS | — |
| Vehicle parts & maintenance 393 | 9H | — | — |
2026-02-24 1 violHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Unsafe driving 392 | 2-SLLED | — | — |
2026-02-10 2 violsHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Vehicle parts & maintenance 393 | 11 | — | — |
| Vehicle parts & maintenance 393 | 9TS | — | — |
2026-01-27 3 violsHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Vehicle parts & maintenance 393 | 9A-LFTSI | — | — |
| Vehicle parts & maintenance 393 | 60E | — | — |
| Hazardous materials (HMR) 172 | 328D-HMM | — | — |
2026-01-13 1 violHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Unsafe driving 392 | 2-SLLS1 | — | — |
2025-11-20 2 viols· 1 OOSHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Vehicle parts & maintenance 393 | 47B | OOS | — |
| Unsafe driving 392 | 2RG | — | — |
2025-11-03 1 violHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Vehicle parts & maintenance 393 | 60C | — | — |
2025-09-23 5 viols· 3 OOSHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Vehicle parts & maintenance 393 | 47A-BCFSBD-SA | OOS | — |
| Vehicle inspection & repair 396 | 3A1-BOS | OOS | — |
| Vehicle inspection & repair 396 | 3A1-BALAC | — | — |
| Hazardous materials (HMR) 178 | 345-11B1III-HMP | — | — |
| Vehicle parts & maintenance 393 | 207F-SDAS | OOS | — |
2025-08-27 6 viols· 1 OOSPost-accidentHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Hours of service 395 | 30B2-ELDDFC24 | — | — |
| Hours of service 395 | 3A2-HOSPD | — | — |
| Hours of service 395 | 3A2-HOSPD | — | — |
| Vehicle parts & maintenance 393 | 95A4-EENA | — | — |
| Vehicle inspection & repair 396 | 3A1-TAOCV | OOS | — |
| Vehicle parts & maintenance 393 | 75A3-TAOL | OOS | — |
2025-07-04 8 viols· 1 OOS
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Vehicle parts & maintenance 393 | 11TU | — | — |
| Vehicle parts & maintenance 393 | 209E | — | — |
| Vehicle parts & maintenance 393 | 75A3 | OOS | — |
| Vehicle parts & maintenance 393 | 9 | — | — |
| Vehicle parts & maintenance 393 | 95F | — | — |
| Hours of service 395 | 24D | — | — |
| Hours of service 395 | 8F01 | — | — |
| Unsafe driving 392 | 2-SLLS1 | — | — |
2025-06-14 2 viols· 2 OOS
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Vehicle parts & maintenance 393 | 41-BNPB | OOS | — |
| Vehicle parts & maintenance 393 | 41-BNPB | OOS | — |
2025-05-06 7 violsHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Hours of service 395 | 24 | — | — |
| Vehicle parts & maintenance 393 | 60C | — | — |
| Vehicle parts & maintenance 393 | 45D-B | — | — |
| Vehicle parts & maintenance 393 | 55E-B | — | — |
| Vehicle parts & maintenance 393 | 55D2-B | — | — |
| Vehicle parts & maintenance 393 | 45D-B | — | — |
| Vehicle parts & maintenance 393 | 45D-B | — | — |
2025-04-10 3 violsHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Unsafe driving 392 | 2-SLLEWA2 | — | — |
| Unsafe driving 392 | 2-SLLEWA2 | — | — |
| Unsafe driving 392 | 2-SLLEWG2 | — | — |
2025-03-05 4 violsHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Hazardous materials (HMR) 172 | 201D | — | — |
| Hazardous materials (HMR) 172 | 516C6 | — | — |
| Vehicle parts & maintenance 393 | 60C | — | — |
| Unsafe driving 392 | 2RG | — | — |
2025-02-06 3 violsHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Vehicle parts & maintenance 393 | 47E | — | — |
| Vehicle parts & maintenance 393 | 53B | — | — |
| Vehicle parts & maintenance 393 | 9H | — | — |
2025-01-22 2 viols
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Vehicle parts & maintenance 393 | 95A1 | — | — |
| Vehicle inspection & repair 396 | 17C-PI | — | — |
2024-11-26 8 violsHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Vehicle parts & maintenance 393 | 55C1-B | — | — |
| Vehicle parts & maintenance 393 | 95A1I | — | — |
| Hazardous materials (HMR) 172 | 328D-HMM | — | — |
| Vehicle parts & maintenance 393 | 45D-B | — | — |
| Vehicle parts & maintenance 393 | 48A-BIBD | — | — |
| Hazardous materials (HMR) 172 | 328D-HMM | — | — |
| Vehicle parts & maintenance 393 | 48A-BLMACBD | — | — |
| Unsafe driving 392 | 2-SLLTCD | — | — |
2024-11-19 3 violsHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Unsafe driving 392 | 2-SLL | — | — |
| Vehicle parts & maintenance 393 | 55C1-B | — | — |
| Unsafe driving 392 | 2-SLLEWA3 | — | — |
2024-08-12 1 viol· 1 OOS
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| CDL standards 383 | 23(a)(2) | OOS | — |
2024-05-07 3 violsHazmat
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Vehicle parts & maintenance 393 | 95(a)(1) | — | — |
| Vehicle parts & maintenance 393 | 45(d) | — | — |
| Unsafe driving 392 | 2 | — | — |
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