Unlike many other industries where factory walls can hide the number of Negroes employed, the trucking industry's racial composition is largely open to public view. This study concerns the racial employment practices of interstate common and contract carriers, the for-hire segment of the motor trucking industry, in the driver and other job categories. As the Teamsters' Union exerts a powerful influence on the trucking industry, the organizational structure of this union and the factors bearing on its Negro employment decisions are also examined. The document describes the motor carrier or trucking industry and the scope of Negro employment in it. The study is also concerned with governmental efforts to promote equal employment opportunities among public carriers, the effects of law in this field, and current industrial response. (MF)