RTC members have agreed to adopt the ISO Standards for rebreather diver training as they are published. The following ISO Standards have been published to date:
ISO 24804 “Recreational diving services — Requirements for rebreather diver training — No- decompression diving”
A diver able to make dives with a rebreather not requiring mandatory decompression stops using a nitrox or air diluent to a maximum of 30 metres
ISO 24805 “Recreational diving services — Requirements for rebreather diver training — Decompression diving to 45 m”
A diver able to make dives with a rebreather requiring mandatory decompression stops using a nitrox or air diluent to 40 metres or to 45 metres with trimix diluent
The RTC has created the following standards defining the minimum requirements for training divers using rebreathers (these will be superseded by ISO 24806 and ISO 24807 when they are published in 2023):
RTC Technical Rebreather Diver Level 2
A diver able to dive with a rebreather and two or more off-board bailout cylinders in the company of at least one other certified diver without supervision in conditions similar to those experienced during this course. The training organization may specify a maximum depth for certified divers up to a maximum of 60 metres/200 feet.
RTC Technical Rebreather Diver Level 3
A diver able to dive with a rebreather and at least two or more off-board bailout cylinders in the company of at least one other certified diver without supervision in conditions similar to those experienced during this course. The training organization may specify a maximum depth for certified divers up to a maximum of 100 metres/330 feet.
The RTC standards can be downloaded without charge from here: