This report describes and compares the honor and conduct systems at the Department of Defense's service academies and describes the attitudes and perceptions of students toward these systems. Principal findings included the following: (1) academy honor systems differ regarding toleration and standards of proof; (2) honor systems provide the majority of due process protections, while limiting others (such as the right to representation by counsel); (3) what constitutes an honor violation is unclear (e.g., widespread differences of opinion were found in a survey of students and administrators regarding the violation status of 27 specific acts); (4) students are reluctant to report honor violations; (5) Air Force Academy conduct hearings provide fewer protections than those at the other academies; (6) fewer rights are granted in academy administrative conduct systems than are mandated for other nonjudicial punishment; (7) academy students see themselves as overregulated by trivial rules; and (8) academy students perceive the conduct system as operating inconsistently. Appendices provide comments from the Department of Defense, a description of the questionnaire methodology, and a summary of the status of various scenarios under each academy's honor code. (DB)