Curious about the cost of a program and what salary you may earn upon completion? Then check out the links below. The "Gainful Employment" information is a requirement by the U.S. Department of Education. Gainful employment applies to vocational programs and non-degree programs at community and technical colleges that receive federal student aid. In essence, it compares your cost of education to your potential earnings. Here at Columbus Technical College, we boast plenty of bang for your buck and the data helps prove our point.