; (2) barriers to participation in such stakeholder processes for new market participants and other non-incumbent stakeholders; (3) the need for periodic, independent review of RTO and ISO stakeholder policies and procedures; (4) power imbalances between incumbent and non-incumbent stakeholders, including whether current RTO and ISO membership rules, sectoral designations, and voting procedures allow for adequate representation of all stakeholder views; (5) whether and how RTOs and ISOs should take State public policy objectives into consideration as part of such stakeholder processes; (6) whether existing RTO and ISO decision-making processes are sufficiently independent from the control of any market participant or class of participants; (7) the role of the Office of Public Participation of the Commission in facilitating greater stakeholder participation in RTOs and ISOs; and (8) such other subjects as the Commission considers appropriate. (d) Public comment The Commission shall provide an opportunity for public comment on the technical conference convened under subsection (a). (e) Rulemaking Not later than 18 months after the conclusion of the technical conference convened under subsection (a), the Commission shall issue a final rule adopting such policies and procedures as the Commission determines necessary to maintain the independence of RTOs and ISOs, and to enhance the transparency and responsiveness of RTOs and ISOs to their customers and other stakeholders. (f) Definitions In this section: (1) Commission The term Commission means the Federal Energy Regulatory Commission. (2) Federal Power Act definitions The terms electric utility , Independent System Operator , ISO , Regional Transmission Organization , RTO , and State commission have the meanings given such terms in section 3 of the Federal Power Act ( 16 U.S.C. 796 ). 621. Savings clause Nothing in this title diminishes— (1) any right granted through the National Environmental Policy Act of 1969 ( 42 U.S.C. 4321 et seq. ) to the public