Getting Started Central Illinois Softball Assigning provides assigning services for over twenty area schools and organizations. Umpires Are you interested in umpiring? Learn more about why you should umpire, steps to take to become an umpire, and how to join CISA. Why umpire? Become an umpire Equipment requirements Join CISA Organizations Many schools and organizations have realized the benefits of using an assignor. Learn more about CISA services and how they’ll benefit you and your organization. Why use an assignor CISA services Have CISA assign for you