page_title: Autonomous diver
section_title: CMAS *
hierarchical_section_title: Autonomous diver / Training according to ISO 24801-2 / CMAS *
context_page_description: Autonomous diver describes the minimum requirements for basic training and certification for recreational scuba divers in international standard ISO 24801-2 and the equivalent European Standard EN 14153-2. Various organizations offer training that meets the requirements of the Autonomous Diver standard. A certification which corresponds to Autonomous Diver allows for independent diving with a dive buddy in open water. Most training organizations do not recommend exceeding a depth of 18 or 20 meters at this level of certification. After completion this certification the training can be extended to a dive leader to ISO 24801-3 or an intermediate not defined by international standards.
  Before initial diver training and thereafter at regular intervals, a diver should undergo a fitness to dive examination by a diving doctor. In some countries, such an examination is required by law and it is a prerequisite for any training in many diving schools. A diving certification which corresponds to Autonomous Diver and a medical certificate may be required for renting diving equipment and taking part in organised dives.
context_section_description: The CMAS * (one-star) training goes beyond the requirements defined by the Autonomous Diver standard. CMAS requires the theory test before diving in open water. 6 theory lessons, which build the basic understanding of the learner diver and, after the successful completion of a theory test, at least 6 swimming pool or confined water training sessions, and 5 open water training and assessment dives. The course includes breathhold exercises. After successfully completing the course, training can continue with specialisation courses or the CMAS ** (two star). CMAS recommends maximum depth of 20 meters for one-star divers. For divers aged between 8 and 14 years, a maximum depth of 5 meters is recommended.
  The CMAS * course can be started without prior knowledge of diving. Persons who wish to attend a CMAS * course must be at least 14 years old, and in normal physical health and fitness.
  The basic training standards of the individual CMAS member organizations may differ from the training specified by CMAS.
caption: The CMAS certification sustem