Buddy trained at intro level.... received NSSCDS Basic and TDI Intro cards...

TDI card specifies following limitations: Max depth 130' w/ 30' vis, no deco, no restrictions, reserve 2/3 air supply to exit, continuous guideline to exit, at least 3 lights/diver...

Is single tanks assumed....?
Card makes no reference to advanced topics; navigation jumps, gaps, curcuits, traverses

TDI's site is lacking on detail....

Whats the scoop...?
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Yes - they are diving 6ths...