Contracting with the federal government is a highly regulated process governed by a maze of statutes and regulations. Government contracts law involves assisting businesses in complying with the complex set of procedures that must be followed in order for companies to provide goods and services to governments (federal, state or municipal) or challenging the actions of the government or a third party in entering into or executing a government contract for goods or services.
Tunnel City is an unincorporated community in the town of Greenfield, in Monroe County, Wisconsin, United States, named for the train tunnel just to the west which was used by the Chicago and North Western Railway (trackage now abandoned west of the tunnel) and the Chicago, Milwaukee, St. Paul & Pacific Railroad (Milwaukee Road). The existing track is owned by the Canadian Pacific Railway, and carries the Amtrak Empire Builder passenger train, though rail traffic is dominated by freight.