To establish policy and provide program guidance for the administration of emergency funds for the repair or reconstruction of Federal-aid highways, which are found to have suffered serious damage by natural diasters over a wide area or serious damage from catastrophic failures. Guidance for application by Federal agencies for reconstruction of Federal roads that are not part of the Federal-aid highways is contained in 23 CFR part 668, subpart B. [52 FR 21948, June 10, 1987, as amended at 61 FR 67212, Dec. 20, 1996]