How can I get training to dive below the recreational limit of 130 feet?

IANTD offers training on extended range and recreational trimix diving. You'll have to meet all of the prerequisit certifications such as advanced open water,and advanced nitrox. Technicle diving requires a lot of extensive training and work. You must be very disiplened with the preceedures and processes. Small mistakes here deliver serious consiquinces of the unheathy catigory. I have one rule I rely on thru all the years of my diving activities. Never dive past your education and training. Luck very seldom goes diving with you and when it does it's never a reliable dive buddy.