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.
Calliham is an unincorporated community in northeastern McMullen County, Texas, United States, along State Highway 72 between Three Rivers and Tilden. Its elevation is 226 feet (69 m), and it is located at 28°28′50″N 98°21′01″W / 28.48056°N 98.35028°W / 28.48056; -98.35028 (28.4805479, -98.3502895). Although it is unincorporated, it has a post office with the ZIP code of 78007.