SDI TDI Instructor Crossover Online
Become a TDI/SDI Instructor
with Divers UnderGround.
TDI is the world’s largest technical diving training agency. SDI is one of the most respected recreational agencies globally. Crossing over unlocks the ability to certify students in TDI/SDI programs, gives you access to International Training’s global network, and positions you within one of the most safety-focused instructor communities in professional diving.
The SDI TDI Instructor Crossover Online is a professional development process offered by Divers UnderGround, a TDI/SDI 5-Star Professional Development Facility based in Playa del Carmen, Riviera Maya, Mexico.
The crossover allows active scuba instructors certified by agencies such as PADI, SSI, NAUI, CMAS, BSAC, or RAID to join the International Training (TDI/SDI) system. The process is primarily administrative and academic; most candidates complete it entirely online without traveling to Mexico.
Eligibility depends on current instructor level, active teaching status, requested ratings, and agency recognition by TDI/SDI World Headquarters. Where a practical evaluation is required, water sessions may be added. Certification is issued by International Training upon approval of all documentation. The program is facilitated by Camilo García, TDI/SDI Instructor Trainer, with over 18 years of professional diving experience.
Course Details
Includes:
- Instructor Materials
- Current Year Membership
- Online Crossover Class
- Standards and procedures review
- Administrative guidance
- Support with required documentation
- Review of current specialties
- Eligibility review for technical ratings
Dives:
No required dives for the administrative crossover.
Duration:
2 Hours
Your TDI Instructor Trainer Qualifications:
- Nitrox IT
- Intro to Tech IT
- Advanced Nitrox IT
- Deco. Procedures IT
- Sidemount Instructor Trainer
- Cavern Inst. Evaluator IT
- Course Director
- Open Water Instructor Trainer
SDI TDI Instructor Crossover Specs
Certification: SDI / TDI Instructor
Location: Online (worldwide)
Format: Administrative & academic
Evaluation: In-person only if required
Price: USD 650 all-inclusive
Course Overview
You’ll complete the crossover in a professional, supportive, and standards-focused setting. Through guided review of the TDI/SDI system, standards, procedures, and real-world teaching scenarios, you’ll gain the clarity and confidence needed to represent TDI/SDI as a dependable instructor from day one.
WHERE OTHERS SEE WATER, WE SEE THRESHOLDS.
Why Choose Divers UnderGround for Your SDI/TDI Instructor Crossover Online
Completing your SDI or TDI instructor crossover with Divers UnderGround means working directly with Camilo García, a TDI/SDI Instructor Trainer and Course Director with over 18 years of professional diving and instructor-level training experience. Based in Playa del Carmen since 2012, Divers UnderGround is one of the few TDI/SDI 5-Star Professional Development Facilities in the Riviera Maya, a designation that reflects both the facility’s operational standards and the qualification level of its instructors.
The crossover process is guided, not just administered. Before you start, we will review your current certifications, confirm your eligibility, identify the correct crossover pathway, and help you prepare the required documentation. This matters because the route to TDI/SDI recognition differs depending on your agency background, current instructor level, requested ratings, and active teaching status. Getting it right the first time saves time and avoids costly delays.
Most candidates complete the entire process online, with no travel required. Scheduling is arranged around your availability, not a fixed calendar. If your pathway requires a practical evaluation, this can be arranged at Divers UnderGround’s facility in Playa del Carmen, where you have access to world-class cenotes for confined, open-water, and technical dive environments as needed.
Who Can Apply for the SDI/TDI Instructor Crossover Online?
Not sure if you qualify? Contact Divers UnderGround to review your instructor certification, teaching status, and SDI/TDI crossover options.
- Certified scuba instructors from recognized agencies Ideal for instructors currently certified through agencies such as PADI, SSI, NAUI, CMAS, BSAC, RAID, or other accepted organizations.
-
Active professionals in teaching status
Candidates should be current, active dive professionals with no unresolved Quality Assurance issues or active investigations.
-
Instructors ready to cross over to TDI/SDI
This program helps qualified instructors understand TDI/SDI standards, procedures, documentation, and methodologies.
-
Applicants who want a guided eligibility review
Divers UnderGround can review your background, confirm your crossover pathway, and help you prepare the required documentation.
Prerequisites:
Required conditions:
- Active Instructor.
- Current teaching status.
- No active Quality Assurance investigations.
Crossover Price
Before You Start Your SDI/TDI Instructor Crossover Online Complete Your TDI/SDI eLearning
Ready to Start Your Instructor Crossover Online?
What divers say about training with us
— Andy Ho, Full Cave Diver graduate
— Aqua Lung, Google Review
Frequently Asked Questions
Do you have any questions?
Share them with us.
How long does the TDI/SDI Instructor Crossover take?
The TDI/SDI Instructor Crossover is usually completed in just a few hours, especially when all documents and prerequisites are already in order. Because the process is primarily administrative and academic, the exact duration may vary depending on your current instructor level, agency background, requested ratings, and the documentation provided.
Do I need to travel to Mexico?
Which agencies are accepted?
Can I crossover into technical instructor ratings?
What documents do I need?
Is certification guaranteed?
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