The SSI SCR Diving program provides divers with the knowledge and training necessary to independently plan and conduct semi-closed rebreather (SCR) dives to a maximum depth of 30 meters, using an SCR Total Diving System and SCR diving procedures with an equally- or more-qualified dive buddy.

MINIMUM INSTRUCTOR RATING

An active status, unit-specific SCR Diving Instructor may conduct the unit-specific SCR Diving program.

ADMINISTRATIVE REQUIREMENTS

Prior to training, students must have completed the program-specific Training Record, including:

• Statement of Understanding

• Privacy Stateme

• Medical History form

• Waiver and Release of Liability and Risk Awareness Verification (where applicable)

STUDENT PREREQUISITES

Have logged at least:

• 24 total dives

Have the following SSI certifications or an equivalent from a recognized training agency:

• Enriched Air Nitrox 40

• Deep Diving

SCR UNIT CROSSOVER

Have logged at least:

• 6 SCR open water dives

Have the following SSI certifications or an equivalent from a recognized training agency:

• SCR Diving

DURATION

• Recommended hours for completion: 24-30.

MINIMUM EQUIPMENT

Students participating in this program must use at least the following equipment configuration:

A complete SCR Total Diving System that:

Has CE-type approval Is approved by SSI

A single cylinder (minimum volume 5.7 liters) with:

Second stage with 1-2 meter hose and SPG Oxygen cleaned as required

A surface marker buoy (SMB) Surface signaling device Spool or reel appropriate for the planned dive depth

Cutting device Manufacturer and/or SSI Pre-Dive Checklist

Draft: 12/02/18 229 © SSI International GmbH, 2018

DEPTH LIMITATIONS

• Maximum depth limit for Open Water Training Dive 1and 2: 12 meters.

• Maximum depth limit for Open Water Training Dive 3: 20 meters.

• Maximum depth limit for Open Water Training Dive 4 and any additional training dives: 30 meters. At least

one (1) dive must be to a depth of 25 meters.

• At least one (1) dive must be to a depth of 25 meters.

REQUIREMENTS FOR COMPLETION

• Complete all academic sessions and assessments as outlined in the unit-specific instructor manual for SCR Extended Range.

• Complete an SCR Diving final exam with a passing score of at least 80%.

• Complete a unit-specific final exam with a passing score of at least 80%.

• Complete an equipment configuration session as outlined in the instructor manual for SCR Extended Range.

• Complete the XR Water Fitness Evaluation as outlined in the SSI Training Standards.

• Complete at least one (1) pool/confined water skill development session with a minimum cumulative time of at least one (1) hour as outlined in the instructor manual for SCR Extended Range.

• Complete at least four (4) open water training dives as outlined in the instructor manual for SCR Extended Range.

• Complete at least 300 minutes of in-water runtime on the applicable SCR unit.

NOTES

• All in-water training must be planned within the no-decompression limits of the student’s dive computer,

dive planning software, or the SSI Combined Air/EAN Tables.

• The on-board nitrox gas must not have a ppO2 higher than 1.6 bar at the deepest planned depth of the

dive.

SEQUENCE

• Open Water Training Dives 1 and 2 may only be conducted after the student successfully completes

the equipment configuration session, the XR Water Fitness Evaluation, and all pool/confined water skill

development sessions.

• Overhead Training Dives 3 and 4 may only be conducted after the student successfully completes all

academic sessions, the final exam, and Open Water Training Dives 1 and 2.

CERTIFICATION

The SCR Diving certification entitles the holder to dive with an equally- or more-qualified buddy, with the

equipment configuration used during training and SCR diving procedures, to depths of up to 30 meters, not

requiring decompression stops, providing that dives are conducted in environments similar to those of the

diver’s training and experience.

UPGRADES AND UNIT CROSSOVERS

Students upgrading to SCR Diving from another electronically-controlled SCR unit, or a CCR unit, must complete

the following:

• All unit-specific theory and procedures, including a final exam with a passing score of at least 80%.

• At least one (1) additional pool/confined water skill development session lasting at least one (1) hour.

• Open Water Training Dives 3 through 4 as outlined in the instructor manual for SCR Extended Range.

• At least 120 minutes of open water runtime on the applicable SCR unit.