You have three options: Take Dive Guide, Science of Diving and Dive Control Specialist single or all as one program or enter the program as a Divemaster from any approved agency. As a Dive Control Specialist you can lead and guide certified divers; assist SSI Instructors in the classroom, pool and open water; teach skills in the classroom and pool under the indirect supervision of an SSI Instructor (except the emergency skills); teach the SSI Scuba Skills Update program, the SSI Snorkeling program, and the SSI Try Scuba program (pool only) and upgrade to a Training Specialist.