34 C.F.R. § 5.31
(h) Search means the process of looking for and retrieving agency records or information responsive to a FOIA request. Searching includes page-by-page or line-by-line identification of information within agency records and reasonable efforts to locate and retrieve information from agency records maintained in electronic form or format, provided that such efforts do not significantly interfere with the operation of the Department's automated information systems.
(Authority: 5 U.S.C. 552(a), 5 U.S.C. 552(a)(4)(A), 20 U.S.C. 3474)