This document provides information and resources for students to declare or change their major at the University of Arizona. It outlines the major exploration process, which begins with self-exploration to understand one's interests and strengths. It directs students to utilize the Degree Search website to research options and contact advisors in departments of interest. Additional resources like Career Services and academic advisors can provide support during the major decision process. A four-year timeline is presented to help students stay on track with their major, course planning, and involvement.