The requirement for equipotential bonding of perimeter surfaces at outdoor spas goes away under the 2011 NEC.

Until then, the code requires the single #8 ring with four pionts of connection to the spa EGC, any other fixed metal parts, and the metal parts of the spa.

680.42 references Part II which contains the provisions of 680.26(B).

Where does the #8 go if this whole thing is sitting on an elevated plastic deck?

What amazes me is that this was not taken into consideration from square 1. It seems like we have this new "trial-and-error" type of CMP-17, and it has been like that now for a few years. I hope NFPA changes out most of the players on this code making panel. Does anyone know if this panel has changed any of its members in the last few years?

It goes on the green plastic screw. That is listed for use!
Mounted on the rest of the non-conductive material.
Smile.