; and (5) such other work on Federal or State land incidental to or necessary in connection with any projects of the character enumerated in paragraphs (1) through (4) that the President determines to be desirable. (b) Role of Federal agencies To operate the Civilian Conservation Corps, the President may utilize existing Federal departments and agencies, including the Department of Labor, the Department of Defense, the National Guard Bureau, the Department of the Interior, the Department of Agriculture, the Army Corps of Engineers, the Department of Transportation, the Department of Energy, the Environmental Protection Agency, and Federal governmental corporations. (c) Inclusion of other lands The President may extend the activities of the Civilian Conservation Corps to lands owned by a political subdivision of a State and lands in private ownership, but only for the purpose of conducting such kinds of cooperation work as are otherwise authorized by law in preventing and controlling forest fires and the attacks of forest tree pests and diseases and such work as is necessary and in the public interest to control floods. (d) Contract authority For the purpose of carrying out this Act, the President may enter into such contracts or agreements with States as may be necessary, including provisions for utilization of existing State administrative agencies. (e) Acquisition of real property The President, or the head of any department or agency authorized by the President to construct any project or to carry on any public works under this Act, may acquire real property for such project or public work by purchase, donation, condemnation, or otherwise. 3. Administration of Civilian Conservation Corps (a) Employment preference If the President determines that amounts appropriated to carry out a Civilian Conservation Corps under this Act for a fiscal year will be insufficient to employ all of the citizens of the United States described in section 2(a) who are seeking or likely to seek employment in the Civilian Conservation