G4 TANK LINES LLC
AUTHORIZEDUSDOT
4013855
MC Number
1512057
Fleet Size
56
Total Drivers
55
FMCSA-derived snapshot updated: September 20, 2026. This is not a real-time record; verify critical authority, insurance and safety details directly with FMCSA.
Broker verification report
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Safety overview
G4 TANK LINES LLC is a mid-size interstate motor carrier based in DENVER, Colorado, operating 56 power units with 55 drivers. CarrierOwl is currently validating BASIC percentile display against the official FMCSA SMS portal; use the inspection, out-of-service, crash, authority, and insurance data below as the primary public safety indicators on this page. Their driver out-of-service rate of 0.0% comes in under the 6.7% national average. The current imported FMCSA crash snapshot returned no matching crash rows for this carrier; this is not proof that no crash occurred. FMCSA records show 51 inspections for this carrier.
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BASIC scores
Under reviewCarrierOwl is validating BASIC percentile calculations against the official FMCSA SMS portal. Until that review is complete, use FMCSA directly for current BASIC percentiles and use the inspection, out-of-service, crash, authority, and insurance data on this page as supporting indicators.
BASIC percentile display is temporarily paused while we validate CarrierOwl's methodology against the official FMCSA SMS portal.
Out-of-service rates vs. national average
An out-of-service order means the driver or vehicle was pulled from operation during a roadside inspection.
For reference, the average driver OOS rate in Colorado is 11.6% and the average vehicle OOS rate is 25.4% across 49,964 carriers.
Company details
- Entity Type
- N/A
- Carrier Operation
- Interstate
- Operation Classification
- Authorized For Hire
- Cargo Carried
- N
- Hazmat
- Yes
- Safety Rating Date
- N/A
Inspections
51
Total
54%
Driver %
Insurance on file
Liability (BIPD)
GUIDEONE MUTUAL INSURANCE COMPANY — eff. Jun 5, 2023
Cargo
Not on file
Surety Bond
Not on file
Trust Fund
Not on file
Source: Legacy FMCSA. Verify current filings directly with FMCSA before relying on them.
Crash history
0
Total Crashes
Similar carriers in Colorado
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Frequently asked questions
Is G4 TANK LINES LLC authorized to operate?
CarrierOwl's FMCSA-derived snapshot for G4 TANK LINES LLC (USDOT #4013855) shows "AUTHORIZED" status. The snapshot lists them as an interstate carrier. Verify the current official record with FMCSA before booking a load.
What is G4 TANK LINES LLC's safety record?
G4 TANK LINES LLC has 51 inspections in CarrierOwl's current imported snapshot; the snapshot returned no matching crash rows. They do not show a formal FMCSA safety rating in CarrierOwl's current data. A zero result is limited to the dataset and snapshot window. Verify current BASIC percentiles and crash information directly with FMCSA before relying on them.
How many trucks does G4 TANK LINES LLC operate?
G4 TANK LINES LLC operates 56 power units with 55 drivers on file. That puts them in the mid-size range.
Does G4 TANK LINES LLC transport hazardous materials?
Yes. G4 TANK LINES LLC is flagged for hazardous materials transportation with FMCSA. That means additional safety requirements and more frequent inspections.
Where is G4 TANK LINES LLC located?
G4 TANK LINES LLC is based in DENVER, Colorado at 610 SOUTH LIPAN STREET, 80223. Phone: (720) 210-8794.
What are G4 TANK LINES LLC's out-of-service rates?
G4 TANK LINES LLC's driver out-of-service rate is 0.0%, compared with the 6.7% reference shown by FMCSA SMS when checked August 4, 2026. Interpret the difference with inspection volume and verify the current FMCSA record. Their vehicle out-of-service rate is 18.2%, compared with the 23.4% reference shown by FMCSA SMS when checked August 4, 2026. Interpret the difference with inspection volume and verify the current FMCSA record.