SIGNATURE LINE SERVICES LLC
AUTHORIZEDUSDOT
3320616
MC Number
N/A
Fleet Size
23
Total Drivers
19
FMCSA-derived snapshot updated: November 15, 2026. This is not a real-time record; verify critical authority, insurance and safety details directly with FMCSA.
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Safety overview
SIGNATURE LINE SERVICES LLC is a mid-size interstate motor carrier based in BESSEMER, Alabama, operating 23 power units with 19 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 22.2% runs above the national average of 6.7%. They have 2 crashes on file (1 with injuries). FMCSA records show 9 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 Alabama is 12.8% and the average vehicle OOS rate is 30.6% across 35,294 carriers.
Company details
- Entity Type
- N/A
- Carrier Operation
- Interstate
- Operation Classification
- Private (Property)
- Cargo Carried
- N
- Hazmat
- Yes
- Safety Rating Date
- N/A
Inspections
9
Total
60%
Driver %
Insurance on file
CarrierOwl's current public FMCSA filing snapshot returned no matching insurance rows. This does not prove that no private coverage exists; verify current requirements and filings directly with FMCSA and the carrier.
Crash history
2
Total Crashes
Similar carriers in Alabama
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Frequently asked questions
Is SIGNATURE LINE SERVICES LLC authorized to operate?
CarrierOwl's FMCSA-derived snapshot for SIGNATURE LINE SERVICES LLC (USDOT #3320616) shows "AUTHORIZED" status. The snapshot lists them as an interstate carrier. Verify the current official record with FMCSA before booking a load.
What is SIGNATURE LINE SERVICES LLC's safety record?
SIGNATURE LINE SERVICES LLC has 9 inspections in CarrierOwl's current imported snapshot and 2 matching crashes. 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 SIGNATURE LINE SERVICES LLC operate?
SIGNATURE LINE SERVICES LLC operates 23 power units with 19 drivers on file. That puts them in the mid-size range.
Does SIGNATURE LINE SERVICES LLC transport hazardous materials?
Yes. SIGNATURE LINE SERVICES LLC is flagged for hazardous materials transportation with FMCSA. That means additional safety requirements and more frequent inspections.
Where is SIGNATURE LINE SERVICES LLC located?
SIGNATURE LINE SERVICES LLC is based in BESSEMER, Alabama at 560 MITCHELL FIELD ROAD SE, 35022. Phone: (205) 704-0789.
What are SIGNATURE LINE SERVICES LLC's out-of-service rates?
SIGNATURE LINE SERVICES LLC's driver out-of-service rate is 22.2%, 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 33.3%, 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.