1. Short title This Act may be cited as the Restore Our Parks and Public Lands Act . 2. National Park Service and Public Lands Legacy Restoration Fund (a) In general There is established in the Treasury of the United States a fund, to be known as the National Park Service and Public Lands Legacy Restoration Fund (referred to in this section as the Fund ). (b) Deposits (1) In general Except as provided in paragraph (2), for each of fiscal years 2019 through 2023, there shall be deposited in the Fund an amount equal to 50 percent of all energy development revenues due and payable to the United States from oil, gas, coal, or alternative or renewable energy development on Federal land and water that are not otherwise credited, covered, or deposited under Federal law. (2) Maximum amount The amount deposited in the Fund under paragraph (1) shall not exceed $1,300,000,000 for any fiscal year. (3) Effect on other revenues Nothing in this section affects the disposition of revenues that— (A) are due to the United States, special funds, trust funds, or States from mineral and energy development on Federal land and water; or (B) have been otherwise appropriated under Federal law, including the Gulf of Mexico Energy Security Act of 2006 ( 43 U.S.C. 1331 note; Public Law 109–432 ), the Mineral Leasing Act ( 30 U.S.C. 181 et seq.), and chapter 2003 of title 54, United States Code. (c) Availability of funds Amounts deposited in the Fund shall be available to the Secretary of the Interior without further appropriation or fiscal year limitation. (d) Investment of amounts (1) In general The Secretary of the Interior may request the Secretary of the Treasury to invest any portion of the Fund that is not, as determined by the Secretary of the Interior, required to meet the current needs of the Fund. (2) Requirement An investment requested under paragraph (1) shall be made by the Secretary of the Treasury in a public debt security— (A) with a maturity suitable to the needs of the Fund, as determined by the Secretary of the Interior