of Indian Affairs shall undertake and complete a survey of each of the Federal rights-of-way established under this Act. The Bureau of Indian Affairs shall cause the surveys undertaken pursuant to this Act to be published in the Federal Register. (b) Contract The Bureau of Indian Affairs is authorized, subject to appropriations, to contract for the survey of all Federal rights-of-way established pursuant to this Act to the Community or a third party. (c) Deletions Upon completion of the surveys authorized and undertaken pursuant to subsection (a), the Community and the Bureau of Indian Affairs may determine that anomalies exist with respect to certain Federal rights-of-way such that deletion of such Federal right-of-way from the ROW, Easements, and Federal and Tribal Facilities Map is appropriate and such Federal right-of-way may be removed from the ROW, Easements, and Federal Tribal Facilities Map. 10. Authorization of appropriations Subject to available appropriations, there are authorized to be appropriated such sums as are necessary for the Secretary to— (1) take actions required or authorized by this Act