Is Knowles Industrial Services Corp Safe? DOT 438631 – Safety Rating, Crashes & Violations

Q: What is the safety rating of Knowles Industrial Services Corp?

Knowles Industrial Services Corp has a safety rating of "Satisfactory" as of June 21, 2002, based on the most recent FMCSA compliance review.

This carrier is active with a Satisfactory safety rating and no crashes reported.

Knowles Industrial Services Corp is a registered motor carrier with the FMCSA under USDOT number 438631. The company operates from Gorham, ME and maintains an active operating status with 7 power units and 30 drivers on record.

Safety Rating

FMCSA Safety Rating

✓ Satisfactory

Rated: June 21, 2002

Knowles Industrial Services Corp holds a "Satisfactory" safety rating from the Federal Motor Carrier Safety Administration (FMCSA). This rating indicates that the carrier has been found to comply with federal safety regulations based on the most recent compliance review conducted by FMCSA. View official FMCSA record →

Inspection Summary

All-time Inspections

All-time

Total

OOS

Driver OOS

Vehicle OOS

7 inspections — relatively low volume, which may indicate a smaller or newer carrier.

OOS Rate71.43%

The out-of-service (OOS) rate represents the percentage of inspections that resulted in the carrier being placed out of service. 71.4% — above the national vehicle OOS average of ~21%. Review BASICS scores below.

Crash History

✅No crashes reported (FMCSA data)

BASICS Safety Scores

BASICS Scores

Higher = more risk · FMCSA Behavior Analysis and Safety Improvement Categories

0.0

Unsafe Driving

Measures violations related to speeding, reckless driving, and improper lane changes.

0.0

HOS Compliance

Tracks hours-of-service violations, including driving beyond legal limits without rest.

0.1

Driver Fitness

Reflects issues with driver qualifications, licenses, and medical certifications.

0.0

Controlled Substances

Captures drug and alcohol violations, including failed or refused tests.

3.4

Vehicle Maintenance

Reflects brake, tire, lighting, and other equipment-related inspection violations.

Scores above 65 (general freight) or 50 (passenger/hazmat) trigger an FMCSA Alert. Higher scores indicate more safety risk. National median is approximately 20–30 for active carriers.

Other Carriers in Gorham, ME

View all carriers in Gorham, ME →

More Carriers in Maine

View all carriers in Maine →

Largest Trucking Companies →Safest Trucking Companies →

Carrier Insight

Knowles Industrial Services Corp is a small motor carrier operating in Maine. With 7 total inspections on record, the carrier has an out-of-service rate of 71.4%, which exceeds the national average of approximately 21%. No crashes have been reported in FMCSA records, which is a positive indicator for shippers and brokers evaluating this carrier.

A Satisfactory rating from the FMCSA indicates that Knowles Industrial Services Corp meets federal safety standards based on the most recent compliance review. This is the highest rating a carrier can receive.

The company operates 7 power units and employs 30 drivers. This is a small carrier operation.

Frequently Asked Questions

What is USDOT Number 438631?

USDOT number 438631 is assigned to Knowles Industrial Services Corp, an active motor carrier registered with the FMCSA, based in Gorham, ME.

What is the safety rating of Knowles Industrial Services Corp?

Knowles Industrial Services Corp has a safety rating of Satisfactory as of June 21, 2002.

How many inspections has Knowles Industrial Services Corp had?

Knowles Industrial Services Corp has recorded 7 total inspections with 5 out-of-service orders, representing an OOS rate of 71.43%.

Where is Knowles Industrial Services Corp located?

Knowles Industrial Services Corp is headquartered at 295 New Portland Road, Gorham, ME 04038.

What does "Not Rated" mean?

"Not Rated" means the FMCSA has not conducted a formal compliance review for this carrier. It does not indicate a safety problem — many active carriers operate without a formal rating.

Is zero crashes always a good sign?

Generally yes, but context matters. A carrier with zero crashes and very few inspections may simply have limited road exposure. Always review crash data alongside inspection volume and fleet size.

What is a normal OOS rate?

The national average vehicle out-of-service rate is approximately 21%. Driver OOS averages around 5%. Rates significantly above these thresholds may indicate recurring compliance issues.

How often is FMCSA data updated?

FMCSA publishes updated carrier data monthly. This page reflects the most recent available snapshot, updated on the date shown above.

Data sourced from the FMCSA Open Data Portal. Updated monthly. DOT# 438631 · Last updated: 2026-03-09. View official FMCSA record →

Knowles Industrial Services Corp (DOT# 438631) – FMCSA Carrier Profile