Many engineering schools in Korea implement ABEEK programs. One of the core parts of ABEEK is accreditation criterion 2, the program outcomes and their appraisal. This paper tries to discuss the program outcomes and to study the impact of applying the program outcomes to one of the graduation requirements. We show simple survey results for implementing ABEEK programs concerning the program outcomes and their relation to graduation requirements. If the program outcomes are used as one of the graduation requirements, some graduates may satisfy the average grade point for graduation requirements but can not meet the program outcome criteria satisfied by other than regular classes. In this case, the graduate may have trouble to try to meet the program outcome criteria, since he may not be able to stay in school without taking classes. The problems of setting the levels of program outcomes as graduation requirements, non classwork related program outcomes, and work burden to professors should be also prudently reviewed for successful ABEEK implementation.