Passport Scuba Diver certification is completing the required open water dives with a NAUI Instructor. Upon successful completion, you may continue to enjoy scuba diving under the direct supervision of a NAUI Instructor or dive leader for up to 12 months. Engaging in such activities during the initial 12-month period automatically extends your passport for an additional 12 months. NAUI Passport Scuba Divers are qualified to participate in supervised dives in conditions similar to those in which they are trained.