; and (II) any other information required to be reported under that section. (iii) The election service provider agrees to ensure that the election systems will be developed and maintained in a manner that is consistent with the cybersecurity best practices established under subsection (c). (iv) The election service provider agrees to maintain its information technology infrastructure in a manner that is consistent with the cybersecurity best practices established under subsection (c). (v) The election service provider shall report any known or suspected security incidents involving election systems to the chief State election official of the State involved or the official’s designee, the Chair, and the Secretary. (B) Persons described For purposes of subparagraph (A)(i), a person described in this subparagraph is a corporation or business entity that is created or organized under the laws of a country that is party to the UK–USA Agreement for joint cooperation in signals intelligence, military intelligence, and human intelligence, also known as the Five Eyes alliance . (C) Permitting waiver of domestic ownership and control requirement for certain subsidiaries The Secretary of Homeland Security may waive the requirement of clause (i) of subparagraph (A) with respect to a person who is a United States subsidiary of a parent company which has implemented a foreign ownership or control 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) Election system defined In this section, the term election system means a voting system, an election management system, a voter registration website or database, an electronic pollbook, a system for tabulating or reporting election results, an election agency communications system, or any other information system (as defined in