1. Short title This Act may be cited as the Interregional Transmission Planning Improvement Act of 2019 . 2. Rulemaking to increase the effectiveness of interregional transmission planning (a) In general Not later than 6 months after the date of enactment of this Act, the Federal Energy Regulatory Commission shall initiate a rulemaking to consider— (1) the effectiveness of existing planning processes for identifying transmission projects across regions that provide economic, reliability, operational, and public policy benefits, taking into consideration the public interest, the integrity of markets, and the protection of consumers; (2) changes to the processes described in paragraph (1) to ensure that efficient, cost-effective, and broadly beneficial transmission solutions are selected for construction, taking into consideration— (A) the public interest; (B) the integrity of markets; (C) the protection of consumers; (D) the broad range of benefits that interregional transmission provides; (E) the need for single projects to secure approvals based on a comprehensive assessment of the multiple benefits provided; (F) that projects that meet interregional benefit criteria should not be subject to subsequent reassessment by regional entities; (G) the importance of synchronization of planning processes in neighboring regions, such as using a joint model on a consistent timeline with a single set of needs, input assumptions, and benefit metrics; (H) that evaluation of long-term scenarios should align with the expected life of a transmission asset; (I) that transmission planning authorities should allow for the identification and joint evaluation of alternatives proposed by stakeholders; (J) that interregional planning should be done regularly and not less frequently than once every 3 years; and (K) the elimination of arbitrary project voltage, size, or cost requirements for interregional solutions