EN 14153-2 "Autonomous Diver" Abstract This European Standard specifies the competencies that a scuba diver has to have achieved in order for a service provider to award the scuba diver certification indicating that he has met or exceeded scuba diver level 2 ? ?Autonomous diver? and assessment of these competencies. It also specifies conditions under which training has to be provided, in addition to the general requirements for recreational diving service provision according to European Standard EN 14467.
Competencies of a recreational scuba diver at level 2 ? "Autonomous Diver" A scuba diver at level 2 ? "Autonomous Diver" shall be trained to have sufficient knowledge, skill and experience to dive with other scuba divers of at least the same level in open water without supervision of a scuba instructor.
Scuba divers at level 2 ? "Autonomous Diver" are qualified to dive within the following parameters unless they have additional training or are accompanied by a dive leader:
- dive to a recommended maximum depth of 20 m with other scuba divers of the same level,
- make dives, which do not require in-water decompression stops,
- dive only when appropriate support is available at the surface,
- dive under conditions that are equal or better than the conditions where they were trained.
If diving conditions are significantly different from those previously experienced, a scuba diver at level 2 "Autonomous Diver" requires an appropriate orientation from a dive leader.
If accompanied by a scuba instructor, a scuba diver at level 2 ? "Autonomous Diver" may gain progressive experience beyond these parameters and develop competency in managing more challenging diving conditions (e.g. increased depth and current, reduced visibility, extreme temperatures) designed to lead to higher qualifications.

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 - A certified "Autonomous Diver" has sufficient knowledge, skill and experience to dive with other scuba divers of at least the same level in open water without supervision.

The European Standard EN 14153 consists of the following parts:
EN 14153-1, Recreational diving services - Safety related minimum requirements for the training of recreational scuba divers - Part 1: Level 1 ? "Supervised Diver"
EN 14153-2, Recreational diving services - Safety related minimum requirements for the training of recreational scuba divers - Part 2: Level 2 ? "Autonomous Diver"
EN 14153-3, Recreational diving services - Safety related minimum requirements for the training of recreational scuba divers - Part 3: Level 3 ? "Dive Leader".
The requirements specified are minima; they do not preclude the provision of additional training or the assessment by a service provider of additional competencies. The European Standards represent a tool for comparison of existing (or future) qualifications of scuba divers. In no way do they represent a course programme nor do they imply that course programs and scuba diver certifications issued by different organisations must necessarily correspond to these levels.

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