IDAHO:
AMTK
Amtrak-National Railroad Passenger Corp.
BNSF
BNSF Railway Company
EIRR
Eastern Idaho Railroad Inc.
INPR
Idaho Northern & Pacific Railroad Co.
MRL
Montana Rail Link, Inc.
PCC
Palouse River & Coulee City Railroad, Inc.
POVA
Pend Oreille Valley Railroad
STMA
St. Maries River Railroad Company
UP
Union Pacific Railroad Co.
ALS
Alton & Southern Railway Co.
GRNW
Great Northwest Railroad Inc.