Ralph Williams Service LLC (USDOT 503813)
1 caution found.
- DOT number
- USDOT 503813
- Docket (MC) number
- MC954686
- Operating authority
- Common carrier authority: active. The federal bulk file showed this carrier active as of 2026-08-27. We could not confirm that live just now.
- Authority granted
- 2016-03-03
- Insurance on file
- Liability (BIPD) insurance on file for $1,000,000.
- Safety rating
- No published safety rating
- Fleet on file
- 6 power units, 4 drivers
- Operation type
- Interstate
- Physical address
- 3581 WI 175, SLINGER, WI 53086
- MCS-150 last filed
- 2025-05
Findings
- Fatal crash on record (last 24 months) (Caution): 1 fatal crash on FMCSA record in last 24 months
- No inspections in the last 24 months (Note): 6 trucks on file · active 10 years · no inspections in our 24-month roadside record
Frequently asked questions
What carrier is DOT 503813?
DOT 503813 (USDOT 503813) is Ralph Williams Service LLC, an interstate motor carrier.
What carrier is MC 954686?
MC 954686 is the docket number of Ralph Williams Service LLC, USDOT 503813.
What is Ralph Williams Service LLC's MC number?
Ralph Williams Service LLC's docket number is MC 954686. Its USDOT number is 503813.
Is Ralph Williams Service LLC currently authorized to operate?
Common carrier authority: active. The federal bulk file showed this carrier active as of 2026-08-27. We could not confirm that live just now. Source: FMCSA registration and licensing records.
Does Ralph Williams Service LLC have insurance on file with FMCSA?
Liability (BIPD) insurance on file for $1,000,000.
Who provides Ralph Williams Service LLC's insurance?
Ralph Williams Service LLC's liability insurance is filed with FMCSA by Pioneer Specialty Insurance Company.
What is Ralph Williams Service LLC's safety record?
FMCSA records show no vehicle inspections for Ralph Williams Service LLC in the last 24 months, so there is no out-of-service rate. FMCSA records also show 1 recordable crash in the same window.
What is Ralph Williams Service LLC's CSA score?
FMCSA does not publish a single CSA score for carriers. Ralph Williams Service LLC's public safety data includes its roadside inspection out-of-service rates and crash record, listed on this page.
What is Ralph Williams Service LLC's FMCSA safety rating?
Ralph Williams Service LLC 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
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