NATAL-74 is a programing language designed for Canadian computer aided learning (CAL) programs. The language has two fundamental elements: the UNIT provides the interface between the student and the subject matter, and the PROCEDURE element embodies teaching strategy. Desirable features of several programing languages have been adapted to cope with a wide range of display equipment. A variety of computational capabilities, including a calculator mode, provide flexibility in use and response processing. A major goal of NATAL-74 is to provide an effective means to exchange courseware programs. The implementation phase has initially used the DEC-10 computer, but is working toward a high level of machine independence. Cooperation and continuing dialog between CAL users, vendors and researchers is necessary to achieve a meaningful standard for a CAL Language. (CH)