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Home Certifications SDI-TDI-ERDI

Certifications

ACUC ADSI BSAC CMAS IANTD NASE NAUI PADI SDI-TDI-ERDI SSI UTD

Certificates:

Certification Name	Pre Requisites	Minimum Age	Max Depth	More Info	Certifying Dive Shops
SDI-TDI-ERDI, Advanced Adventure Diver	Open Water Scuba Diver, equal rating				42 dive shops View All
SDI-TDI-ERDI, Advanced Buoyancy	Open Water Scuba Diver, equal rating				29 dive shops View All
SDI-TDI-ERDI, Advanced Diver	Open Water Scuba Diver, equal rating				36 dive shops View All
SDI-TDI-ERDI, Advanced Gas Blender	Nitrox Gas Blender				20 dive shops View All
SDI-TDI-ERDI, Advanced Gas Blender Instructor	Intro to Tech Instructor				8 dive shops View All
SDI-TDI-ERDI, Advanced Mix Gas Closed Circuit Rebreather Diver	Mixed Gas Closed Circuit Rebreather Diver, equal rating		100 meters	100 meters	6 dive shops View All
SDI-TDI-ERDI, Advanced Mix Gas Closed Circuit Rebreather Instructor	Mixed Gas Closed Circuit Rebreather Instructor				4 dive shops View All
SDI-TDI-ERDI, Advanced Nitrox Diver	Advanced Diver (or equal rating) + Nitrox Diver (or equal rating)		40 meters	40 meters	34 dive shops View All
SDI-TDI-ERDI, Advanced Nitrox Instructor	Nitrox Instructor				12 dive shops View All
SDI-TDI-ERDI, Advanced Trimix Diver	Trimix Diver, equal rating		100 meters	100 meters	24 dive shops View All
SDI-TDI-ERDI, Advanced Trimix Instructor	Trimix Instructor + significant experience reaching Trimix				9 dive shops View All
SDI-TDI-ERDI, Advanced Wreck Diver	Advanced Diver, equal rating				13 dive shops View All
SDI-TDI-ERDI, Advanced Wreck Instructor	Instructor + Advanced Wreck Diver (or equal rating) + significant experience				5 dive shops View All
SDI-TDI-ERDI, Air Diluent Closed Circuit Rebreather Diver	Advanced Diver (or equal rating) + Nitrox Diver (or equal rating)		30 meters	30 meters Unit Specific- Discovery Poseidon MKVI	8 dive shops View All
SDI-TDI-ERDI, Air Diluent Closed Circuit Rebreather Diver	Advanced Diver (or equal rating) + Nitrox Diver (or equal rating)		30 meters		7 dive shops View All
SDI-TDI-ERDI, Air Diluent Closed Circuit Rebreather Instructor	Nitrox Instructor + significant Closed circuit rebreather experience				4 dive shops View All
SDI-TDI-ERDI, Altitude Diver	Open Water Scuba Diver, equal rating				5 dive shops View All
SDI-TDI-ERDI, Assistant Instructor	Divemaster (or equal rating)				17 dive shops View All
SDI-TDI-ERDI, Basic Air Diluent Decompression Rebreather Diver	Air Diluent Closed Circuit Rebreather Diver, equal certification		45 meters		9 dive shops View All
SDI-TDI-ERDI, Basic Closed Circuit Rebreather Decompression Procedures Instructor	Air Diluent Closed Circuit Rebreather Instructor				5 dive shops View All
SDI-TDI-ERDI, Boat Diver	Open Water Scuba Diver, equal rating				27 dive shops View All
SDI-TDI-ERDI, Cave DPV Diver	Full Cave Diver, equal rating				7 dive shops View All
SDI-TDI-ERDI, Cave DPV Instructor	Full Cave Instructor + Cave DPV Diver (or equal rating)				4 dive shops View All
SDI-TDI-ERDI, Cave Surveying Diver	Full Cave Diver, equal rating				4 dive shops View All
SDI-TDI-ERDI, Cave Surveying Instructor	Full Cave Instructor + Cave Surveying Diver (or equal rating)				2 dive shops View All
SDI-TDI-ERDI, Cavern Diver	Open Water Scuba Diver, equal rating				15 dive shops View All
SDI-TDI-ERDI, Cavern Instructor	Instructor + Full Cave Diver (or equal rating)				6 dive shops View All
SDI-TDI-ERDI, Computer Diver	Open Water Scuba Diver, equal rating				26 dive shops View All
SDI-TDI-ERDI, Computer Nitrox Diver	Open Water Scuba Diver, equal rating				28 dive shops View All
SDI-TDI-ERDI, CPR1st Administrator Course	Open Water Scuba Diver, equal rating				19 dive shops View All
SDI-TDI-ERDI, CPROX Administrator Course	Open Water Scuba Diver, equal rating				15 dive shops View All
SDI-TDI-ERDI, Decompression Procedures Diver	Advanced Nitrox Diver, equal rating		45 meters	45 meters	32 dive shops View All
SDI-TDI-ERDI, Decompression Procedures Instructor	Advanced Nitrox Instructor				13 dive shops View All
SDI-TDI-ERDI, Deep Diver	Open Water Scuba Diver, equal rating		40 meters	40 meters	44 dive shops View All
SDI-TDI-ERDI, Divemaster	Master Scuba Diver (or equal rating)				36 dive shops View All
SDI-TDI-ERDI, Diver Propulsion Vehicle	Open Water Scuba Diver, equal rating				12 dive shops View All
SDI-TDI-ERDI, Drift Diver	Open Water Scuba Diver, equal rating				25 dive shops View All
SDI-TDI-ERDI, Dry Suit Diver	Open Water Scuba Diver, equal rating				28 dive shops View All
SDI-TDI-ERDI, Equipment Specialist	Open Water Scuba Diver, equal rating				21 dive shops View All
SDI-TDI-ERDI, ERD 1	Rescue Diver, equal rating				4 dive shops View All
SDI-TDI-ERDI, ERD 2	ERD 1				3 dive shops View All
SDI-TDI-ERDI, ERD Drysuit OPS	ERD 2				2 dive shops View All
SDI-TDI-ERDI, ERD Full Face Mask OPS	ERD 2				4 dive shops View All
SDI-TDI-ERDI, ERD Ice Diving OPS	ERD 2				2 dive shops View All
SDI-TDI-ERDI, ERD Ice/Surface Rescue OPS	ERD Ice Diving OPS				2 dive shops View All
SDI-TDI-ERDI, ERD Instructor	ERD Supervisor + significant experience				3 dive shops View All
SDI-TDI-ERDI, ERD Instructor Trainer	ERD Instructor + significant experience				3 dive shops View All
SDI-TDI-ERDI, ERD Supervisor	ERD 2 + significant experience				4 dive shops View All
SDI-TDI-ERDI, ERD Tender	ERD 1				4 dive shops View All
SDI-TDI-ERDI, ERDi Contaminated Water Diver Ops	ERD 2 + significant experience
SDI-TDI-ERDI, Extended Range Diver	Advanced Nitrox Diver (or equal rating) + Decompression Procedures Diver (or equal rating)		55 meters		21 dive shops View All
SDI-TDI-ERDI, Extended Range Instructor	Advanced Nitrox Instructor				12 dive shops View All
SDI-TDI-ERDI, Full Cave Diver	Intro to Cave Diver, equal rating				12 dive shops View All
SDI-TDI-ERDI, Full Cave Instructor	Intro Cave Instructor + significant experience				5 dive shops View All
SDI-TDI-ERDI, Full Face Mask Diver Specialty	Open Water Scuba Diver, equal rating				6 dive shops View All
SDI-TDI-ERDI, Future Buddies		8		The SDI Future Buddies program is an innovative course designed to provide children between the ages of 8 & 9 an introduction to scuba diving in a controlled environment under the direct supervision of an SDI instructor. Once the future buddy turns 10 they can enroll in the SDI Junior Open Water Diver course.	10 dive shops View All
SDI-TDI-ERDI, Ice Diver	Open Water Scuba Diver, equal rating				5 dive shops View All
SDI-TDI-ERDI, Inactive Diver Program	Open Water Scuba Diver, equal rating				14 dive shops View All
SDI-TDI-ERDI, Instructor	Divemaster, Assistant Instructor, equal rating				19 dive shops View All
SDI-TDI-ERDI, Instructor Trainer	Instructor + significant experience				3 dive shops View All
SDI-TDI-ERDI, Instructor Trainer	significant experience in specialties as professional				2 dive shops View All
SDI-TDI-ERDI, Intro Cave Instructor	Instructor + recommendation from Cave Instructor + Full Cave Diver (or equal rating)				6 dive shops View All
SDI-TDI-ERDI, Intro to Cave Diver	Open Water Scuba Diver, equal rating				13 dive shops View All
SDI-TDI-ERDI, Intro to Tech Diving	Open Water Scuba Diver, equal rating				24 dive shops View All
SDI-TDI-ERDI, Intro to Tech Instructor	Instructor + Advanced Nitrox Diver (or equal rating)				12 dive shops View All
SDI-TDI-ERDI, IT Staff Instructor	Instructor + significant experience				7 dive shops View All
SDI-TDI-ERDI, Marine Ecosystems Awareness	Open Water Scuba Diver, equal rating				8 dive shops View All
SDI-TDI-ERDI, Master Scuba Diver	Open Water Scuba Diver (or equal rating) + Advanced Diver (or equal rating) + Rescue Diver (or equal rating)			50	21 dive shops View All
SDI-TDI-ERDI, Mixed Gas Closed Circuit Rebreather Diver	Air Diluent Closed Circuit Rebreather Diver + Trimix Diver (or equal rating)		60 meters		7 dive shops View All
SDI-TDI-ERDI, Mixed Gas Closed Circuit Rebreather Instructor	Basic Closed Circuit Rebreather Decompression Procedures Instructor				3 dive shops View All
SDI-TDI-ERDI, Night- Limited Visibility Diver	Open Water Scuba Diver, equal rating				31 dive shops View All
SDI-TDI-ERDI, Nitrox Diver	Open Water Scuba Diver, equal rating				42 dive shops View All
SDI-TDI-ERDI, Nitrox Gas Blender					21 dive shops View All
SDI-TDI-ERDI, Nitrox Gas Blender Instructor	Nitrox Instructor				9 dive shops View All
SDI-TDI-ERDI, Nitrox Instructor	Instructor + Trimix Diver (or equal rating)				14 dive shops View All
SDI-TDI-ERDI, Non-Diving Specialty Instructor	Instructor				6 dive shops View All
SDI-TDI-ERDI, O2 Service Technician	professional equipment repair experience				12 dive shops View All
SDI-TDI-ERDI, O2 Service Technician Instructor	professional equipment repair experience				7 dive shops View All
SDI-TDI-ERDI, Online Instructor Crossover	Instructor rating from other agency				8 dive shops View All
SDI-TDI-ERDI, Open Water Scuba Diver		18		Students between the ages of 10 through 14 may obtain an SDI Junior Open Water Scuba Diver Certification if the following conditions are met: junior students are to train and dive under the direct supervision of a parent, guardian, or active dive professional. When an SDI Junior Open Water Diver reaches the age of 15, they may upgrade to an SDI Open Water Scuba Diver certification	42 dive shops View All
SDI-TDI-ERDI, Rescue Diver	Open Water Scuba Diver (or equal rating) + Advanced Diver (or equal rating)			25	44 dive shops View All
SDI-TDI-ERDI, Research Diver	Open Water Scuba Diver, equal rating				9 dive shops View All
SDI-TDI-ERDI, Scuba Discovery					35 dive shops View All
SDI-TDI-ERDI, Search & Recovery Diver	Open Water Scuba Diver, equal rating				29 dive shops View All
SDI-TDI-ERDI, Semi-Closed Rebreather Diver	Advanced Diver (or equal rating) + Nitrox Diver (or equal rating)			(Dolphin, Ray, Submatix ST100, Azmuth)	7 dive shops View All
SDI-TDI-ERDI, Semi-Closed Rebreather Instructor	Nitrox Instructor + significant Semi-closed rebreather experience			(Dolphin, Ray, Submatix ST100, Azmuth)	4 dive shops View All
SDI-TDI-ERDI, Shore/Beach Diver	Open Water Scuba Diver, equal rating				15 dive shops View All
SDI-TDI-ERDI, Sidemount Diver	Open Water Scuba Diver, equal rating	18	40 meters	40 meters	26 dive shops View All
SDI-TDI-ERDI, Skin Diver					13 dive shops View All
SDI-TDI-ERDI, Solo Diver	Open Water Scuba Diver, equal rating				31 dive shops View All
SDI-TDI-ERDI, Specialty Instructor	Instructor + significant experience				11 dive shops View All
SDI-TDI-ERDI, Stage Cave Diver	Full Cave Diver (or equal rating) + Decompression Procedures Diver (or equal rating)				11 dive shops View All
SDI-TDI-ERDI, Stage Cave Instructor	Full Cave Instructor + Stage Cave Diver (or equal rating)				4 dive shops View All
SDI-TDI-ERDI, Technical Divemaster	Divemaster (or equal rating) + Advanced Trimix Diver (or equal rating)				10 dive shops View All
SDI-TDI-ERDI, Trimix Diver	Extended Range Diver, equal rating		60 meters		25 dive shops View All
SDI-TDI-ERDI, Trimix Instructor	Extended Range Instructor + Advanced Trimix Diver (or equal rating)				11 dive shops View All
SDI-TDI-ERDI, Underwater Hunter & Collector	Open Water Scuba Diver, equal rating				7 dive shops View All
SDI-TDI-ERDI, Underwater Navigation	Open Water Scuba Diver, equal rating				31 dive shops View All
SDI-TDI-ERDI, Underwater Photography	Open Water Scuba Diver, equal rating				24 dive shops View All
SDI-TDI-ERDI, Underwater Video	Open Water Scuba Diver, equal rating				14 dive shops View All
SDI-TDI-ERDI, Visual Inspection Procedures	Open Water Scuba Diver, equal rating				8 dive shops View All
SDI-TDI-ERDI, Wreck Diver	Open Water Scuba Diver, equal rating				34 dive shops View All

Your diving journey always starts with your diver certification. Diving is an immensely fun activity but needs to be done correctly as it can be very dangerous when done irresponsibly. Finding the right training for the diving activity that you intend to partake can be a challenging task.

There are a number of Diver certification bodies with hundreds of different courses offered; these courses are interrelated through a system of prerequisites and requirements such as age, experience and other factors. Through manual research we have compiled a unified database of all certifications & qualifications offered by the major bodies with notes, prerequisites and age requirements for each one.

The database below should provide some insight to the path that a diver can take in attaining the perfect mix of training necessary for the conditions and activities that he/she desires to partake in.