Consistent with this chapter, each designated contract market and registered derivatives transaction execution facility shall issue such rules as are necessary to avoid duplicative or conflicting rules applicable to any futures commission merchant registered with the Commission pursuant to section
6f
(a) of this title (except paragraph (2) thereof), that is also registered with the Securities and Exchange Commission pursuant to section
78o
(b) of title
15 (except paragraph (11) thereof) with respect to the application of—