提供进行职业潜水作业的组织和后勤要求，包括使用压缩气体供应装置，以及在深度不超过50米（165英尺）的职业水下作业中使用表面供应呼吸器（SSBA）和自给式水下呼吸器（SCUBA）的具体要求。

Provides organizational and logistical requirements for the conduct of occupational diving operations, including the use of compressed gas supply apparatus, and specific requirements for the use of surface-supplied breathing apparatus (SSBA) and self-contained underwater breathing apparatus (SCUBA) in occupational underwater operations at depths not exceeding 50m (165ft).