250.104(A)(1)The bonding jumper(s) shall be sized in accordance with Table 250.66 except as permitted in 250.104(A)(2) and (A)(3).
(2) ...the individual occupancies is metallically isolated from all other occupancies by use of nonmetallic water piping... 250.122
(3) ... 250.66 again
It sure sounds like 250.66 to me.
