Dodd-Frank, 7 U.S.C. 7a-2(c)(5)(C) (C) Special rule for review and approval of event contracts and swaps contracts (i) Event contracts In connection with the listing of agreements, contracts, transactions, or swaps in excluded commodities that are based upon the occurrence, extent of an occurrence, or contingency (other than a change in the price, rate, value, or levels of a commodity described in section 1a(2)(i)2 of this title), by a designated contract market or swap execution facility, the Commission may determine that such agreements, contracts, or transactions are contrary to the public interest if the agreements, contracts, or transactions involve -- (I) activity that is unlawful under any Federal or State law; (II) terrorism; (III) assassination; (IV) war; (V) gaming; or (VI) other similar activity determined by the Commission, by rule or regulation, to be contrary to the public interest. (ii) Prohibition No agreement, contract, or transaction determined by the Commission to be contrary to the public interest under clause (i) may be listed or made available for clearing or trading on or through a registered entity.