This Research Note reports on a task-based performance assessment development project for Korean as a foreign language through the National Foreign Language Resource Center at the University of Hawai‘i. It contains an overview of college-level Korean language teaching and testing in the United States as well as an introduction to task-based performance assessment in general and the design of performance assessment tasks using test and item specifications in particular. Questionnaire forms used and prototype tasks developed in English and Korean are presented in the appendices.