The University Interscholastic League (UIL) uses the following guidelines at the beginning of each school year to determine participation in any school-sponsored activity:
- Students must be promoted to the ninth grade for UIL participation.
- Students beginning their second year of high school must have earned 5 credits, which count toward state high school graduation requirements.
- Students beginning their third year of high school either must have earned a total of 10 credits which count toward state high school graduation requirements or have earned a total of 5 credits which count toward state high school graduation requirements during the preceding 12 months.
- Students beginning their fourth year of high school either must have earned a total of 15 credits which count toward state high school graduation credits or have earned a total of 5 credits which count toward state high school graduation requirements during the preceding 12 months.
Students must maintain a minimum of 70 in every course at the beginning of each six-week period to remain eligible for participation in UIL and extracurricular activities. If a student fails a course, he/she is ineligible for the following three-week period. Ineligibility becomes effective seven days after the end of the six-week period. The student will regain eligibility for competition seven days after the three-week period if the student has passing grades of a 70 or above in all courses at that time. Dickinson High School publishes a UIL calendar showing all relevant dates for participation.