; and (ii) is unable to obtain within 2 business days of such determination the affirmative express consent required under this section. (B) If unable to remove and delete user data pursuant to subparagraph (A), discontinue the covered research. (5)(A) Establish a process by which a user may choose to opt out of covered research at a later date from when the user previously provided affirmative express consent for such research. (B) Subject to subparagraph (A), following the decision of a user to opt out, stop collecting, processing, or transferring any data from such user for the purposes of the covered research. (6) Establish an independent review board that shall— (A) develop, on a continuing basis and using the resources developed under section 4, guidance and rules for the development of user interface and user experience design of the large online operator that are consistent with the requirements of subsection (a) of this section; and (B) review and have authority to approve, require modification in, or disapprove all covered research conducted on users or on the basis of user activity or data consistent with subsection (a)(2). (7) Ensure that any independent review board established under paragraph (6) registers with the Commission, including providing to the Commission— (A) the names and resumes of every member of the independent review board; (B) the composition and reporting structure of the independent review board to the management of the large online operator; (C) the process by which the independent review board is to be notified of covered research or modifications of covered research, along with the processes by which the independent review board is capable of vetoing or amending such research; (D) any compensation provided to members of the independent review board