ISSC INC

AUTHORIZED

DBA: SEAPORT STEEL CO

3660 EAST MARGINAL WAY S, SEATTLE, WA, 98134|(206) 224-9093

USDOT

343395

MC Number

N/A

Fleet Size

26

Total Drivers

21

Last updated: March 16, 2026

Safety overview

ISSC INC is a mid-size interstate motor carrier based in SEATTLE, Washington, operating 26 power units with 21 drivers. Their safety profile raises flags: 3 of 5 BASIC categories exceed the 75th percentile, which is where FMCSA considers stepping in. Their driver out-of-service rate of 0.0% comes in under the 5.51% national average. No crashes on file. FMCSA records show 43 inspections for this carrier.

BASIC scores

SMS Percentiles

Higher percentile = worse performance relative to peers. Scores at or above 75% may trigger an FMCSA investigation.

Unsafe Driving
84%
HOS / Fatigue
84%
👤Driver Fitness
35%
Controlled Substances
42%
🔧Vehicle Maintenance
83%

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.

Driver OOS rate0.0%
National average5.5%
Vehicle OOS rate57.1%
National average20.7%

For reference, the average driver OOS rate in Washington is 7.4% and the average vehicle OOS rate is 32.8% across 48,296 carriers.

Company details

Entity Type
N/A
Carrier Operation
Interstate
Operation Classification
Private (Property)
Cargo Carried
N
Hazmat
No
Safety Rating Date
N/A

What are BASIC scores?

FMCSA tracks carrier performance through its Safety Measurement System (SMS), which scores carriers across six categories called BASICs. Each score is a percentile from 0 to 100, based on inspection and crash data from the past 24 months.

A score of 65 means the carrier performed worse than 65% of its peers. Anything above 75% can trigger FMCSA alerts or investigations. Brokers vetting new carriers should pay attention to scores above 50%.

Unsafe driving
Speeding, reckless driving, improper lane changes, seatbelt violations. All based on what officers find during roadside inspections.
HOS / Fatigue
Hours-of-service violations, logbook problems, driving past the allowed limits. Fatigued driving is one of the top causes of truck crashes in the US.
Driver fitness
Licensing problems, expired medical certificates, and other driver qualification issues.
Controlled substances
Drug and alcohol testing violations, possession, or impairment.
Vehicle maintenance
Brake problems, tire issues, lighting defects, load securement failures. Caught during the vehicle portion of roadside inspections.
Crash indicator
Based on crash history from state-reported data. Higher percentile means more crashes relative to the carrier's size and mileage.

Inspections

43

Total

67%

Driver %

Driver Inspections43
Vehicle Inspections21
Driver OOS Rate0.0%
Vehicle OOS Rate57.1%

Insurance on file

No insurance records on file with FMCSA.

Crash history

0

Total Crashes

Fatal Crashes0
Injury Crashes0
Tow Crashes0

Need trucking insurance?

Compare quotes from commercial truck insurers. Liability, cargo, physical damage coverage and more.

Get quotes (coming soon)

Frequently asked questions

Is ISSC INC authorized to operate?

Yes. ISSC INC (USDOT #343395) currently holds "AUTHORIZED" status with FMCSA. They're registered as an interstate carrier.

What is ISSC INC's safety record?

ISSC INC has 3 BASIC scores above the 75th percentile, which is where FMCSA may look into a carrier. Brokers should weigh these scores alongside the inspection history and crash data before making a decision.

How many trucks does ISSC INC operate?

ISSC INC operates 26 power units with 21 drivers on file. That puts them in the mid-size range.

Does ISSC INC transport hazardous materials?

No. ISSC INC does not have a hazardous materials flag in the FMCSA database.

Where is ISSC INC located?

ISSC INC is based in SEATTLE, Washington at 3660 EAST MARGINAL WAY S, 98134. Phone: (206) 224-9093.

What are ISSC INC's out-of-service rates?

ISSC INC's driver out-of-service rate is 0.0%, compared to the national average of 5.51%. Below average, which is a good sign. Their vehicle out-of-service rate is 57.1% (national average: 20.72%). Above average, which may point to vehicle maintenance gaps.