BUD/S Warning Order

After completing the First Phase, you have proven to the instructor staff that you are motivated to continue more in-depth training. The diving Phase is seven weeks in length. During this period, physical training continues, but the times are lowered for the four mile runs, two mile swims, and obstacle course. Second Phase concentrates on combat SCUBA (Self Contained Underwater Breathing Apparatus). Students are taught two types of SCUBA: open circuit (compressed air) and closed circuit (100% oxygen). Emphasis is placed on long distance underwater dives with the goal of training students to become basic combat divers, using swimming and diving techniques as a means of transportation from their launch point to their combat objective. This is a skill that separates SEALS from all other Special Operations forces.