The ABET 2000 criteria have provided the impetus for the Agricultural and Biosystems Engineering Department at Iowa State University to re-structure the assessment of its undergraduate agricultural engineering program. We linked ABET student outcomes to validated work-place competencies with key actions that are measurable in academic and experiential education environments. Two tools are being used to assess competencies: an on-line assessment system and electronic portfolios developed by each student as a requirement for graduation. This paper discusses the overall philosophy of our assessment program, how the assessment tools are being implemented, and the implications for change in the curriculum.