; or (2) if the Commission determines appropriate, to establish disclosure requirements for entities with interests in matters before a Regional Transmission Organization or Independent System Operator that serve as financial sponsors of special events or activities at Regional Transmission Organization or Independent System Operator meetings. (e) Boards of directors (1) Independent board Not later than 180 days after the date of enactment of this Act, the Commission shall promulgate regulations requiring, subject to exceptions defined by the Commission, that the board of directors of a Regional Transmission Organization or Independent System Operator be independent from, and not affiliated with, the members of the Regional Transmission Organization or Independent System Operator. (2) Membership Not later than 18 months after the date of enactment of this Act, the Commission shall promulgate regulations— (A) requiring the board of directors of each Regional Transmission Organization and Independent System Operator to have members who have expertise and experience in representing consumers, including at least 1 member with expertise in the interests of retail residential consumers; (B) establishing the number of members described in subparagraph (A) that shall be required on a board of directors described in that subparagraph in order to avoid marginalization of the perspectives and contributions of those members