GS Seniors are Girl Scouts who are in ninth and tenth grades (around ages 14–16). Girl Scout Seniors wear the same uniform as Girl Scout Cadettes — however, the disks for their membership pin is red membership. Although they earn the same Interest Projects and STUDIO 2B Focus booklets, GS Seniors may also use the Senior Girl Scout Handbook and work on Program Aide, Leader-in-Training, or Counselor-in-Training, along with the Leadership Award, and Career Award. (4B Challenges were retired.) GS Seniors are typically encouraged to create and lead activities for younger Girl Scouts, and to take a leadership role in organizing and assisting with Council and service unit/association events and activities. Girl Scout Seniors are eligible to earn the Gold Award.