The Plano East Senior High Marching Band is comprised of all members in the Wind Ensemble, Symphonic and Concert Bands. The marching band rehearses after school during the fall semester and performs at pep rallies, all regular season and playoff football games, University Interscholastic League Marching Contests, the Plano East Marching Invitational, PISD Band Night, parades, an invitational marching festival and other special events as required. A schedule of rehearsals and performances will be given to students in May so that conflicts can be avoided during the fall semester. Students who attend all rehearsals, make a conscientious effort to improve on their marching fundamentals, demonstrate an understanding of their music and marching assignments for performances will be given an opportunity to perform with the marching band.

A designated number of student marchers will "share" one marching assignment within their instrument grouping. This will vary from year to year and section to section. These students will alternate game and contest/festival performances as long as all the criteria has been met regarding attendance, marching fundamentals, and understanding of the musical and marching assignments. In the case of illness, injury, eligibility, unexcused absence or disciplinary reasons, a student who is sharing a marching assignment may be switched to another marching assignment. All students who share a marching assignment perform at pre-game activities, travel with the marching band, and play in the stands regardless of their performance status that particular week. Those students not performing will assist the directors during the performance.

Students who have an unexcused absence from band class or after school rehearsals may lose the privilege to perform with the band.