(a) The provisions of this subpart apply to each of the following: a subpart C derivatives clearing organization, a systemically important derivatives clearing organization, and any derivatives clearing organization, as defined under section 1a(15) of the Act and § 1.3 of this chapter, seeking to become a subpart C derivatives clearing organization pursuant to § 39.31 .(b) A systemically important derivatives clearing organization is subject to the provisions of subparts A and B of this part in addition to the provisions of this subpart.(c) A subpart C derivatives clearing organization is subject to the provisions of subparts A and B of this part in addition to the provisions of this subpart except for §§ 39.41 and 39.42 . 78 FR 72514 , Dec. 2, 2013, as amended at 83 FR 7996 , Feb. 23, 2018