SSI - Decompression Diving Specialty Course

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SSI - Decompression Diving Specialty Course


The SSI Decompression Diving Specialty will teach you how to dive beyond the no-decompression limits. You will learn to plan and conduct dives to a maximum depth of 40 meters with limited decompression using your recreational total diving system and a single decompression cylinder.

You will learn and practice how to effectively use your dive computer features, including switching gases, gas integration, time-to-reserve, and time-to-surface. Using these computer functions will become second nature, enabling you to safely conduct dives with limited decompression without hours of dive planning.

Upon completion, you will earn the SSI Decompression Diving Specialty certification and be able to explore stunning deep dive sites or larger wrecks without being restricted by the traditional no-decompression limits. The opportunities to expand your diving adventures have just got bigger!


Minimum age: 16 years old. 24 total dives

Have the following certifications or an equivalent:

Deep Diving certified,  Enriched Air Nitrox certified  .

Minimum Equipment

Students participating in this program must use at least one of the following equipment configurations: A complete recreational Total Diving System as outlined in the Recreational Scuba General Training Standards with appropriate D-rings for stage cylinder attachment. Including: A single-stage cylinder (minimum volume 5.7 litres) with a delivery system and submersible pressure gauge.

Depth Limitations

Maximum confined water depth limit: 12 metres. Maximum depth limit for Open Water Training Dives 1 through 3:  , 40 metres. At least one dive must be to a depth of at least 30 meters.

Requirements For Completion

Complete all academic sessions and assessments  

Complete the final exam.

Independently create a full dive plan using dive planning software.

Complete one confined water session  

Complete three open-water training dives


Open Water Training Dive 1 must be planned within the no-decompression limits of the student’s dive computer or dive planning software. Actual staged decompression training must be conducted on Open Water Training Dives 2 and 3. The total time for all required decompression stops on the back gas profile must not exceed 15 minutes per dive. Divers may carry a decompression mixture of up to 40% oxygen.


Day One: Theory 1 plus Equipment Configuration workshop Day Two: Confined Water Session Day Three: Open Water Training Dive 1 ,Day Four:   Open Water Training Dives 2 and 3 


Upon completion of all academic and in-water requirements; Certified divers can dive with an equally- or more-qualified buddy in environments equivalent to their training and within the recommended depth limits of their certifications.