1a. Find the academic catalog
Open your university's website and search for any of these terms. Different schools use different labels, but they all point to the same source of truth:
Academic Catalog Course Catalog University Catalog Degree Requirements Program Requirements Degree Audit Curriculum Guide
Fastest path: Google this exact pattern: site:yourschool.edu academic catalog [your major].
Save the catalog page as a PDF or screenshot before you keep going. This becomes your working document.