Welcome to the Centralized Application for Teaching Sections (CATS) (currently in BETA)

CATS invites students in the Harvard Graduate School of Arts and Sciences (GSAS) to submit their qualifications to become a Teaching Fellow in select courses in the Humanities and Social Sciences.

Students in other Harvard colleges are unable to use CATS at this time. Please consult with the appropriate department administrators for questions.


To enter this application you must authenticate via HarvardKey, using your HarvardKey. After successfully authenticating you will be returned to the application.


Harvard Affiliates: if you are eligible to but have not yet done so, you may claim your HarvardKey here.

Login to CATS


If you are experiencing technical difficulties, please email the HUIT helpdesk at ithelp@harvard.edu or call 617-495-7777.