105 STAT. 428 PUBLIC LAW 102-87 —AUG. 14, 1991 of the United States, the fair market value of the land, including the value of any improvement thereon, as of the date of conversion of the land to such nonconforming purpose. All amounts received by the Secretary of the Interior pursuant to this subsection shall be retained by the Secretary of the Interior and used, subject to appropriations, for the management of public lands and shall remain available until expended.". (c) AMENDMENT OF PATENTS. —Upon the request of the city of Pocatello, the Secretary of the Interior shall amend any patents issued pursuant to the Act of May 12, 1920, so as to conform to the amendments to such Act made by this Act. SEC. 2. MODIFICATION OF REPORTING REQUIREMENT. The first section of the Act of May 12, 1920 (41 Stat. 596) is amended by designating the existing text of such section as section 1(a) and by striking out "of each year after the expiration of said two years," and inserting in lieu thereof "every five years beginning in 1996,". Approved August 14, 1991. LEGISLATIVE HISTORY—H.R. 1448: HOUSE REPORTS: No. 102-127 (Comm. on Interior and Insular Affairs). SENATE REPORTS: No. 102-121 (Comm. on Energy and Natural Resources). CONGRESSIONAL RECORD, Vol. 137 (1991): June 24, considered and passed House. July 31, considered and passed Senate.