approve or establish rates for the expansion service that are designed to ensure the recovery, on an incremental or rolled-in basis, of the cost associated with the expansion (including a reasonable rate of return on investment);

ensure that the rates do not require existing shippers on the Alaska natural gas transportation project to subsidize expansion shippers;

find that a proposed shipper will comply with, and the proposed expansion and the expansion of service will be undertaken and implemented based on, terms and conditions consistent with the tariff of the Alaska natural gas transportation project in effect as of the date of the expansion;

find that the proposed facilities will not adversely affect the financial or economic viability of the Alaska natural gas transportation project;

find that the proposed facilities will not adversely affect the overall operations of the Alaska natural gas transportation project;

find that the proposed facilities will not diminish the contract rights of existing shippers to previously subscribed certificated capacity;

ensure that all necessary environmental reviews have been completed; and

find that adequate downstream facilities exist or are expected to exist to deliver incremental Alaska natural gas to market.