IOWA	AMTK	Amtrak-National Railroad Passenger Corp.
	APNC	Appanoose County Community Railroad
	BJRY	Burlington Junction Railway
	BNSF	BNSF Railway Company
	CN	Canadian National Railways
	CIC	Cedar Rapids & Iowa City Railway Co.
	CBGR	Council Bluffs Railway
	DAIR	D & I Railroad Company
	DME	Dakota, Minnesota & Eastern Railroad Corp.
	EACH	East Camden & Highland Railroad Company
	IAIS	Iowa Interstate Railroad, Ltd.
	IANR	Iowa Northern Raiload
	IANW	Iowa Northwestern Railroad
	ISR	Iowa Southern Railroad Company
	IATR	Iowa Traction Railroad Company
	ICE	Iowa, Chicago and Eastern Railroad Corp.
	IARR	Iowa River Railroad, Inc.
	KJRY	Keokuk Junction Railway
	NENE	Nebraska Northeastern Railway Co.
	NS	Norfolk Southern Railway Co.
	OTT	Ottumwa Terminal Railroad Co.
	UP	Union Pacific Railroad Co.