This article presents a Wisconsin post-secondary guide to disability documentation. The guide will assist organizations to determine their role in understanding needed documentation for students with disabilities transitioning from PK-12 to Wisconsin postsecondary education. This Guide provides the following: (1) Summary of Applicable Laws; (2) Guiding Principles for Disability Documentation; (3) Elements of Proper Documentation of the Disability; (4) Resources; (5) Websites; and (6) Examples of a Transition Checklist and Letters showing Documentation. The guide was developed and composed by the Wisconsin Disability Documentation Workgroup in 2003-04.