PUBLIC LAW i04r-37—OCT. 21, 1995 109 STAT. 313 exchange, or purchase at a nominal cost not to exceed $100 pursuant to the Act of August 3, 1956 (7 U.S.C. 428a); purchase and erection or alteration or improvement of permanent and temporary buildings; and operation and maintenance of aircraft, $629,986,000, to remain available until expended (7 U.S.C. 2209b), of which not less than $5,852,000 is for snow survey and water forecasting and not less than $8,875,000 is for operation and establishment of the plant materials centers: Provided, That appropriations hereunder shall be available pursuant to 7 U.S.C. 2250 for construction and improvement of buildings and public improvements at plant materials centers, except that the cost of alterations and improvements to other buildings and other public improvements shall not exceed $250,000: Provided further. That when buildings or other structures are erected on non-Federal land, that the right to use such land is obtained as provided in 7 U.S.C. 2250a: Provided further, That this appropriation shall be available for technical assistance and related expenses to carry out programs authorized by section 202(c) of title II of the Colorado River Basin Salinity Control Act of 1974, as amended (43 U.S.C. 1592(c)): Provided further, That no part of this appropriation may be expended for soil and water conservation operations under the Act of April 27, 1935 (16 U.S.C. 590a-590f) in demonstration projects: Provided further. That this appropriation shall be available for employment pursuant to the second sentence of section 706(a) of the Organic Act of 1944 (7 U.S.C. 2225) and not to exceed $25,000 shall be available for employment under 5 U.S.C. 3109: Provided further, That qualified local engineers may be temporarily employed at per diem rates to perform the technical planning work of the Service (16 U.S.C. 590e-2). WATERSHED AND FLOOD PREVENTION OPERATIONS For necessary expenses to carry out preventive measures, including but not limited to research, engineering operations, methods of cultivation, the growing of vegetation, rehabilitation of existing works and changes in use of land, in accordance with the Watershed Protection and Flood Prevention Act approved August 4, 1954, as amended (16 U.S.C. 1001-1005, 1007-1009), the provisions of the Act of April 27, 1935 (16 U.S.C. 590a-f), and in accordance with the provisions of laws relating to the activities of the Department, $100,000,000, to remain available until expended (7 U.S.C. 2209b) (of which $15,000,000 shall be available for the watersheds authorized under the Flood Control Act approved June 22, 1936 (33 U.S.C. 701, 16 U.S.C. 1006a), as amended and supplemented): Provided, That this appropriation shall be available for employment pursuant to the second sentence of section 706(a) of the Organic Act of 1944 (7 U.S.C. 2225), and not to exceed $200,000 shall be available for employment under 5 U.S.C. 3109: Provided further. That not to exceed $1,000,000 of this appropriation is available to carry out the purposes of the Endangered Species Act of 1973 (Public Law 93-205), as amended, including cooperative efforts as contemplated by that Act to relocate endangered or threatened species to other suitable habitats as may be necessary to expedite project construction.