
Advanced technical diving certifications can be pursued by many people. TDI offers Intro to Tech, Advanced Nitrox, and Decompression Procedures courses. PADI offers Tec Trimix as well as Deep Diver courses. Advanced Nitrox training is offered by TDI to recreational Nitrox divers. The course covers equipment usage, gas switching, and advanced emergency techniques, such as lift bag deployment. Visit the TDI website for more information.
TDI Introto Tech Course
The TDI Intro to Tech training course is a standalone course that will help you improve your recreational training as well as gain a deeper understanding of advanced technical skills. It is also a great introduction for advanced courses from TDI, such as Advanced Nitrox & Decompression Procedures. Or, it could be used as refresher material for people who have already completed technical courses. During the course, TDI technical instructors will be able to assess your skills.
The TDI Intro to Tech course was designed for divers who are not familiar with twin cylinders. It also covers advanced gas management and buoyancy control. Students will also gain situational awareness as well as trim skills. The course is taught in open cenotes, or at sea. You will also learn advanced gas planning techniques. This course is designed to improve your open water diving skills and introduce you to the technical equipment configurations. You will also learn advanced gas planning techniques. It is strictly a no-decompression course, but you will be allowed to use enriched air nitrox mixes during the course.

TDI Advanced Nitrox and Decompression Procedures course
TDI Advanced Nitrox and Deco Procedures courses prepare divers for accelerated and staged decompression. This course teaches advanced gas planning and management skills to ensure safe diving. Students will also learn how manage their equipment and plan ahead for any eventualities. The TDI Advanced Nitrox and Decompression procedures course includes four dives to a maximum depth 40m (130ft).
This course is available as either a standalone or part of an Advanced Nitrox or Decompression Procedures certificate. Advanced Nitrox and Decompression Procedures are performance-based courses that last for four days. Six dives above 30 meters are required. Students complete the course according their own experience and needs. This course prepares students in advanced technical diving.
PADI Tec Trimix course
The final step in the PADI Technical Diver open-circuit path is the PADI Tec Trimix90 course. This certification allows you to dive deeper and go places that no one else has. This course is only suitable for highly experienced tec divers who want to extend their range and explore deeper environments. A valid dive license is required. You also need to pass a medical check in order to be certified as trimix diving. You will need two 30cf-stage bottles and a facial mask to be certified in trimix diving.
PADI Tec Trimix 65 Divers must have logged at the very least 350 dives. The course also focuses on technical diving techniques and protocols. This course includes many teaching scenarios. It is the highest level of technical diving certification. It is important to note that these requirements are more rigorous than those for the PADI Tec Diver standard course.

PADI Tec Deep Diver course
PADI Tec deep diver certification is for recreational divers. This certification covers four dives, including a practice of safety stops and descents. You will also be able to use technical dive equipment such as a EANx or side-mounted cylinder. Also, you'll learn how to plan a deep dive as well as manage your gas supply. Online and offline lessons are both possible through the PADI Tec eLearning program.
This program, unlike previous PADI courses can be completed within two years. First, you need to be certified as a Tec 50 diver by an approved organization. You must be able to dive at 50m, deep diving and pure oxygen. The Tec Deep Instructor course can also be taught by the PADI Course director. Upon successful completion of the Tec Deep Instructor Course, the PADI course director will issue you a Tec Deep Diver certificate.