Carrier profile · USDOT 1441456 · MC-544735 · Updated Jun 13, 2026
ACST TRANSPORT LLC
2 power unitsavg 14.5 yrRegional · 4 statesPROSSER, WA87/100
CARRIER ACTIVEMC-544735 ACTIVERATED SATISFACTORY
Identity & Federal
The official FMCSA identity — legal name, DBA, addresses, contact, officers, and registration — alongside the daily-captured federal-record activity feed, monitored daily by Vektor.
Location
- Physical address
- 147401 W BUENA VISTA ROAD, PROSSER, WA, 99350
- Mailing address
- PO BOX 349, PROSSER, WA, 99350
- Operation
- Interstate
Contact
- Phone
- (509) 832-1445
- Fax
- (509) 278-7861
Registration
- Officers
- Dean Mcwhirk · Amber Mcwhirk
- USDOT / docket
- 1441456 · MC-544735
- First registered
- Dec 7, 2005
- Last MCS-150
- Aug 19, 2025 · 154,000 mi (2024)
- FMCSA safety rating
- Satisfactory · Apr 8, 2008
- Recordable crash rate
- 0.00
- D-U-N-S
- —
Fleet (self-reported · MCS-150)
—CDL drivers
MCS-150 filing history· biennial-update cadence
Per-filing MCS-150 history (each biennial update + the fleet/mileage it reported) is being captured from the daily federal feed and will appear here as we capture the full history.
Federal record activity· monitored daily by Vektor
No licensing or insurance changes captured since Vektor began monitoring this carrier (June 2026). Quiet is usually good.