Register by March 26 to receive the early registration discount and reserve your seat for one of the exciting field trips or short courses. Scholarships and Volunteer Positions A limited number of scholarships and volunteer positions are available. Apply by March 19. Poster Session Share your innovative project or study with conference attendees during the poster session. Submit a proposal by March 19. Exhibit Hall Universities, non-profits, government agencies, and for-profit businesses are encouraged to feature themselves in our Exhibit Hall during the conference. Sign up for a table by April 23.