in-depth the theory and techniques using the gas to expedition depths of 400 fw.  At these depths the increased physiological implications and requirements to establish reasonably safe SOPs and protocols are mandatory.   A total of five days of training is needed for divers already qualified Full Trimix to instill the needed abilities and knowledge for utilizing Trimix as a dive gas to 400 fw.  One confined water session, one dive no shallower than 150 feet and three Trimix dives up to 400 feet are included in this comprehensive course.CCR Expedition Trimix also presents additional protocols from OC Trimix, bailouts.  Failed or limited gas supply, failed electronics and both during bottom, ascent and deco phase and more. This is an important course for those crossing over from OC trimix also.Qualifies Diver to: make dives utilizing hypoxic mixes of Helium, Oxygen and Nitrogen to depths of 400 ft.