And the diving equipment is attached is a job title that refers to a person who some work in water, the bottom of the water, such as sea and lakes. Also referred to as a diver (Sensuiu).
We often refer to persons engaged in labor work has the qualifications, but also refer to a person who dive for the purpose, such as a hobby does not have the qualification (divers).
In Japan there is also under the designation of national qualifications as defined by the Occupational Safety and Health Act (license), in this case, pass the diver's license test, meaning a person who has been issued a license. Further, this designation is also used as one of the occupational MSDF and Coast Guard.