SECTION 1. SHORT TITLE.

    This Act may be cited as the ``National Park Restoration Act''.

SEC. 2. NATIONAL PARK RESTORATION FUND.

    (a) Establishment.--There is established in the Treasury of the 
United States a special fund, to be known as the ``National Park 
Restoration Fund'' (referred to in this section as the ``Fund'').
    (b) Contents.--The Fund shall consist of--
            (1) any amounts deposited in the Fund under subsection 
        (c)(2); and
            (2) any income on investments under subsection (d).
    (c) Deposits to Fund.--
            (1) Definitions.--In this subsection:
                    (A) Available receipts.--
                            (i) In general.--The term ``available 
                        receipts'', with respect to a fiscal year, 
                        means, of the amount described in clause (ii) 
                        for the fiscal year, the amounts that would 
                        otherwise be credited, covered, or deposited in 
                        the Treasury of the United States as 
                        miscellaneous receipts for the fiscal year.
                            (ii) Description of amount.--The amount 
                        referred to in clause (i) is the amount equal 
                        to the difference between--
                                    (I) the total amount of energy 
                                development revenues for the applicable 
                                fiscal year; and
                                    (II)(aa) for fiscal year 2018, 
                                $7,800,000,000;
                                    (bb) for fiscal year 2019, 
                                $8,000,000,000;
                                    (cc) for fiscal year 2020, 
                                $8,200,000,000;
                                    (dd) for fiscal year 2021, 
                                $8,600,000,000;
                                    (ee) for fiscal year 2022, 
                                $8,800,000,000;
                                    (ff) for fiscal year 2023, 
                                $9,000,000,000;
                                    (gg) for fiscal year 2024, 
                                $9,000,000,000;
                                    (hh) for fiscal year 2025, 
                                $9,100,000,000;
                                    (ii) for fiscal year 2026, 
                                $9,300,000,000; and
                                    (jj) for fiscal year 2027, 
                                $9,400,000,000.
                    (B) Energy development revenues.--The term ``energy 
                development revenues'' means all revenues due and 
                payable to the United States from oil, gas, coal, or 
                alternative or renewable energy development on Federal 
                land and water.
            (2) Deposits.--For each of fiscal years 2018 through 2027, 
        there shall be deposited in the Fund an amount equal to the 
        product obtained by multiplying--
                    (A) the available receipts for the fiscal year; and
                    (B) 0.5.
            (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.
    (d) Investment of Amounts.--
            (1) In general.--The Secretary of the Treasury shall invest 
        any portion of the Fund that is not, as determined by the 
        Secretary of the Interior, required for the purposes described 
        in subsection (e)(1).
            (2) Credits to fund.--The income on investments of the Fund 
        under paragraph (1) shall be credited to, and form a part of, 
        the Fund.
    (e) Use of Fund.--
            (1) In general.--Amounts deposited in the Fund shall be 
        available to the Secretary of the Interior, without further 
        appropriation or fiscal year limitation, for the priority 
        deferred maintenance needs that support critical infrastructure 
        and visitor services, if applicable, of the National Park 
        Service, as determined by the Secretary and the Director of the 
        National Park Service.
            (2) Additional amounts.--Amounts made available under 
        paragraph (1) shall be in addition to amounts otherwise 
        available for the purposes described in that paragraph.
            (3) Prohibition on use of funds for land acquisition.--
        Amounts in the Fund shall not be used for the acquisition of 
        land.
    (f) Termination of Deposits.--
            (1) In general.--Deposits under subsection (c)(2) shall 
        terminate on the earlier of--
                    (A) September 30 of the tenth fiscal year after the 
                date of enactment of this Act; and
                    (B) the date on which the aggregate amount 
                deposited in the Fund under subsection (c)(2) equals at 
                least $18,000,000,000.
            (2) Limitation.--Notwithstanding paragraph (1), the 
        Secretary of the Interior may continue to expend any remaining 
        amounts in the Fund after the termination date described in 
        that paragraph in accordance with subsection (e).
    (g) Summary to Congress.--The Secretary of the Interior shall 
submit to the appropriate committees of Congress (including the 
Committee on Energy and Natural Resources and the Committee on 
Appropriations of the Senate and the Committee on Natural Resources and 
the Committee on Appropriations of the House of Representatives), 
together with the annual budget submission of the President, a list of 
each project for which amounts from the Fund are allocated under this 
section, including a summary of each such project.
    (h) Sense of Congress Regarding Offset.--It is the sense of 
Congress that the costs of carrying out this section should be offset.
National Park Restoration Act This bill establishes the National Park Restoration Fund in the Treasury to be made available to the Department of the Interior for priority deferred maintenance needs that support critical infrastructure and visitor services of the National Park Service. Funds deposited through FY2027 are calculated according to a formula that uses as a factor the total amount of energy development revenues due and payable to the federal government. Interior may not use amounts in the fund to acquire lands.  Interior shall submit to Congress a list of the projects for which amounts from the fund are allocated, including a summary of each project. 
National Park Restoration Act