To authorize the United States Man and the Biosphere Program, and for other purposes.

Authorizes the President to carry out the United States Man and the Biosphere Program (Program) and to designate a lead agency for the Program.

(Sec. 2) Requires the activities of the United States Man and the Biosphere Program to include: (1) promotion of interagency cooperation to develop scientific information pertaining to the relationship between human activities and the biosphere; (2) funding of scientific research, with particular focus on interdisciplinary methodologies, pertaining to the relationship between human activities and the biosphere; (3) promotion of public and private partnerships and linkages that sponsor and promote scientific study, education, and information exchange on options for prudent management of natural resources and the relationship between the environment and human health; and (4) coordination of the United States Biosphere Reserve Network to facilitate the study of biological diversity and encourage the sustainable use of natural resources.

(Sec. 3) Sets forth requirements for the designation of areas as additions to the United States Biosphere Reserve Network.

(Sec. 4) Permits the Departments of State, the Interior, and Agriculture and any other Federal agency with authority over the management, protection, or study of natural resources and the environment to provide financial support or other resources to the United States Man and the Biosphere Program to support research, science education, information exchange, and scientific cooperation activities of the United States Man and the Biosphere Program.