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1 ed States Senate and the Committee on Resources of the 



2 United States House of Representatives of such proposal. 



3 Approval of such proposal, if granted by the Secretary, 



4 shall not take effect until sixty days after the date of noti- 



5 fication of both Committees. 



6 SEC. 510. PROTECTION OF CONCESSIONER INVESTMENT. 



7 (a) Existing Structures. — (1) A concessioner 



8 who, pursuant to a concession contract, before the date 



9 of enactment of this title acquired or constructed, or as 



10 of such date was required by such a contract to commence 



11 acquisition or construction, of any structure, fixture, or 



12 improvement upon land owned by the United States within 



13 a park, shall have a possessory interest therein, to the ex- 



14 tent provided by such contract, the value of such 



15 possessory interest to be determined for all purposes on 



16 the basis of applicable laws and contracts in effect on the 



17 day before such date of enactment. 



18 (2) The provisions of this subsection shall not apply 



19 to a concessioner whose contract in effect on the date of 



20 enactment of this title does not include recognition of a 



21 possessory interest. 



22 (3)(A)(i) Except as provided in subparagraph (B), 



23 with respect to a concession contract entered into on or 



24 after the date of enactment of this title, the provisions 



25 of subsection (b) shall apply to any existing structure, fix- 



