This survey is the third in a series of studies of the salaries of engineering technicians conducted by the Engineering Manpower Commission of the Engineers Joint Council. The basic format for the salary presentations is maturity curves in which salary appears as a function of years of experience. Median salaries of all engineering technicians in 1966, 1969, and 1971, as well as a distribution by level of formal education for the respondents in 1971, are included. The distribution of the sample of 759 different establishments employing 71,773 technicians is presented by area of employment. General salary curves for engineering technicians, graduate technicians (Associate degree), graduate technologists (Bachelor's degree), and nongraduate technicians are given for the entire United States and also by four geographic regions of the United States. Industry group curves are included for 20 different employment groups. Curves are presented for small, medium and large industrial establishments and for federal, state and local government as well as educational employers. (TS)