This is a course where you rise to the challenge and commit to becoming a technical diver. The PADI Tec 45 course extends your depth limit to 45 metres/150 feet. You will learn to plan and execute single and repetitive decompression dives using a single decompression cylinder with up to 100 percent oxygen. You will use double cylinders, which can be either back mount or sidemount diving configuration. Tec 45 is a prerequisite to Tec 50. There is also an option for divers to earn a Tec 45 Trimix Diver certification.

To enroll in the Tec 45 course, you must meet these qualifications:

PADI Tec 40 Diver
PADI Rescue Diver (Proof of CPR/First Aid training within the previous two years required)
Minimum of 50 logged dives, with at least 10 dives deeper than 30 metres/100 feet
18 years old
You also need to have a Download the Diver Medical Participant Questionnaire signed by a physician within the last 12 months.

Note that some qualifying certifications from other diver training organisations may apply – ask your Tec 45 Instructor.