(I) Settlement of or delivery on such contract (or option on such contract) shall be effected in cash or by means other than the transfer or receipt of any security, except an exempted security under section 77c of title 15 or section 78c(a)(12) of title 15 as in effect on January 11, 1983, (other than any municipal security, as defined in section 78c(a)(29) of title 15 on January 11, 1983);