under subsection (c). (E) The person agrees to maintain its information technology infrastructure in a manner that is consistent with the cybersecurity best practices established under subsection (c). (F) The vendor shall report any known or suspected security incidents involving voting systems to the chief State election official of the State involved or the official’s designee, the Chair, and the Secretary. (2) Permitting waiver of domestic ownership requirement for certain subsidiaries The Secretary of Homeland Security may waive the requirement of subparagraph (A) of paragraph (1) with respect to a person who is a United States subsidiary of a parent company which has implemented a foreign ownership, control, or influence mitigation plan that has been approved by the Secretary. Such plan shall ensure that the parent company cannot control, influence, or direct the subsidiary in any manner that would compromise or influence, or give the appearance of compromising or influencing, the independence and integrity of an election. (f) Voting system defined In this section, the term voting system has the meaning given such term in section 301(b). . (b) Conforming amendment relating to enforcement Section 401 of such Act ( 52 U.S.C. 21111 ) is amended by striking and 303 and inserting 303, and 304 . (c) Clerical amendments The table of contents of such Act is amended— (1) by redesignating the items relating to sections 304 and 305 as relating to sections 305 and 306