Carrier profile · USDOT 203286 · MC-603997 · Updated Jul 25, 2026

Sla Transport Inc

14 power unitsavg 10.1 yrRegional · 4 statesGLOVERSVILLE, NY63/100
CARRIER INACTIVEMC-603997 INACTIVERATED 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

Mailing address
P O BOX 230, MAYFIELD, NY, 12117
Operation
Interstate

Contact

Web domain
schoolhouseco.net

Registration

Officers
Sharon S Olbrych · Alfred J. Olbrych
USDOT / docket
203286 · MC-603997
First registered
Jun 1, 1974
Last MCS-150
May 11, 2026 · 850,665 mi (2023)
FMCSA safety rating
Satisfactory · Jul 28, 2006
D-U-N-S
5483656

Fleet (self-reported · MCS-150)

14Power units
14Drivers
10CDL drivers
850,665Annual mileage

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.