Hi Pam,
As I understand it, Fly America Act is still in place. It is not part of the UG but is incorporated in the "public policy" requirements of the grant terms and conditions. I was able to easily find the NIH and NSF references:
4 Public Policy Requirements, Objectives and Other Appropriation Mandates
http://www.nsf.gov/bfa/dias/policy/gc1/policymatrix_dec14.pdf
Hope this helps!
Janet
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Janet Simons
Director, Research Policy
University of Maryland Baltimore
Baltimore, MD
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