Miller Long & Arnold CO INC (USDOT 509845)
1 caution found.
- DOT number
- USDOT 509845
- Operating authority
- No active operating authority on file with FMCSA. The federal bulk file showed this carrier active as of 2026-08-29. We could not confirm that live just now.
- Insurance on file
- No active liability (BIPD) insurance on file with FMCSA.
- Safety rating
- No published safety rating
- Fleet on file
- 6 power units, 6 drivers
- Operation type
- Interstate
- Physical address
- 4701 WASHINGTON BLVD, BALTIMORE, MD 21227
- MCS-150 last filed
- 2026-02
Findings
- Unsafe driving at the FMCSA intervention threshold (Caution): Unsafe driving ranks 69 of 100 among similar carriers with recent violations (higher = worse). fleetfax peer estimate, not an official CSA score.
Frequently asked questions
What carrier is DOT 509845?
DOT 509845 (USDOT 509845) is Miller Long & Arnold CO INC, an interstate motor carrier.
What is Miller Long & Arnold CO INC's USDOT number?
Miller Long & Arnold CO INC's USDOT number is 509845. No MC docket number is on file.
Is Miller Long & Arnold CO INC currently authorized to operate?
No active operating authority on file with FMCSA. The federal bulk file showed this carrier active as of 2026-08-29. We could not confirm that live just now. Source: FMCSA registration and licensing records.
Does Miller Long & Arnold CO INC have insurance on file with FMCSA?
No active liability (BIPD) insurance on file with FMCSA.
What is Miller Long & Arnold CO INC's safety record?
In the last 24 months, FMCSA records show 1 of 8 vehicle inspections ending out-of-service for Miller Long & Arnold CO INC, too few inspections for a stable rate. FMCSA records also show 0 recordable crashes in the same window.
What is Miller Long & Arnold CO INC's CSA score?
FMCSA does not publish a single CSA score for carriers. Miller Long & Arnold CO INC's public safety data includes its roadside inspection out-of-service rates and crash record, listed on this page.
What is Miller Long & Arnold CO INC's FMCSA safety rating?
Miller Long & Arnold CO INC has no published FMCSA safety rating. Most US carriers have never received a rating review, so an unrated carrier is the common case, not a warning sign by itself.
Changes over time
Carriers change. Phone numbers, email addresses, insurance, authority. A sudden contact-info change is often the first sign of carrier identity fraud. fleetfax tracks these changes. Create a free account to follow changes on carriers you save.
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Carriers based in Baltimore, MD
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Reconstructed from cached and fleetfax-ingested FMCSA public records, so it may be out of date. Records loaded Aug 29, 2026. Verify current status on FMCSA SAFER. fleetfax surfaces the facts; brokers make the judgment. FMCSA status