Abstract
In the article the author presents the specificity of decompression of deep-sea dives in relation to methods used in underwater works, with particular emphasis on commercial diving in our country. In the 50 - 90 m depth zone in the Polish offshore area, decompression was used in underwater works (works below the depth of 50 m) based on tables designed for bell diving. The technical, organisational and formal conditions of these underwater works corresponded to the national diving potential. The implementation of decompression, particularly in deep-sea dives, provides the possibility of performing it in many different ways. They, in turn, are the result of experience, diving technique, organisation and specificity of underwater works.
The article presents the implementation of decompression from the executive side of underwater deep-sea works developed and carried out by the Department of Underwater Works Technology of the Naval Academy in cooperation with the Navy until 2001 and civil companies to date.