Air T Inc was incorporated under the laws of the State of Delaware in 1980. The Company through its subsidiaries, provides overnight air freight service to the express delivery industry, manufactures and sells aircraft deicers and other special purpose industrial equipment, and provides ground support equipment and facilities maintenance to airlines. The Company operates in three business segments namely The overnight air cargo segment, the ground equipment sales segment and the ground support services segment. The overnight air cargo segment, comprised of its Mountain Air Cargo, Inc. (MAC) and CSA Air, Inc. (CSA) subsidiaries, operates in the air express delivery services industry. The ground equipment sales segment, comprised of its Ground Support, LLC (GGS) subsidiary, manufactures and provides mobile deicers and other specialized equipment products to passenger and cargo airlines, airports, the U. S. military and industrial customers. The ground support services segment, comprised of its Aviation Services, LLC (GAS) subsidiary, provides ground support equipment maintenance and facilities maintenance services to domestic airlines and aviation service providers. Each business segment has separate management teams and infrastructures that offer different products and services. The Department of Transportation (DOT) has the authority to regulate economic issues affecting air service.