Tuiliks aside, it seems to me a basic requirement all your round (and you don't have to wear anything else)... and not inflatable PFDs or 'suspenders'.

: Look, I don't really care whether or not we actually require
: anything. A tuilik is fine with me, a surfskier without a PFD,
: but tethered to his boat is fine with me. Experienced paddlers
: know what they're getting in to and can decide for themselves
: what's appropriate or not. It just seems to me that if someone
: inexperienced does drown on a ConnYak paddle without a PFD, we
: could be liable for NOT requiring one. We have always
: "required" one in the past. Maybe a "ConnYak
: strongly recommends that a PFD be worn at all times" will
: do. In the unlikely event that someone chooses to go without, we
: could always give them the hairy eyeball and deprive them of
: brownies until they comply.