Established in 1971, the Capacity of Texas is a manufacturer of specialty vehicles used to move semitrailer equipment. The company is an ISO 9001-certified organization. It offers a range of spotting tractors and suspension systems. In addition, the company provides a variety of service and replacement parts. Capacity of Texas is a wholly owned subsidiary of Collins Industries, which is one of the leading manufacturers of ambulances, small school and commercial buses and terminal trucks throughout the United States. Collins Industries also operates Collins Bus Corporation, Wheeled Coach Industries, World Trans, Mid Bus Corporation, Corbeil Bus Corporation and Lay-Mor. Its companies additionally manufacture street sweepers and loader backhoes for use in industrial, construction and landscaping applications.