Membership in Pi Sigma Alpha is open to undergraduate and graduate students currently enrolled in programs of political science in institutions where chapters are located.
Undergraduates must meet the following criteria: They must have completed at least one-half the credits required by their institution for the baccalaureate degree; they must have completed at least ten semester-credits (or 15 quarter-credits if their institution is on the quarter system) of work in political science including at least one upper-division course, with an average grade of B or higher in those courses; they must have achieved an overall GPA placing them in the top one-third of their whole class (e.g., junior or senior class). They need not be political science majors to qualify for membership.