(e) An affirmative vote of at least four members of the board is required to approve
- (1) the sale and issuance of bonds;
- (2) the sale or other disposition of a substantial asset or substantial amount of the assets of the corporation; the corporation shall adopt a regulation that defines a substantial asset and a substantial amount of assets for the purposes of this paragraph;
- (3) the ownership structure for a pipeline project of which the corporation is a participant;
- (4) an action committing the corporation to an additional natural gas pipeline project; and
- (5) action on other matters identified in a regulation adopted by the corporation as being subject to this subsection.