44 C.F.R. § 206.346
(a) Emergency assistance. The Regional Administrator may approve assistance pursuant to sections 402, 403, or 502 of the Stafford Act, for emergency actions which are essential to the saving of lives and the protection of property and the public health and safety, are necessary to alleviate the emergency, and are in the public interest. Such actions include but are not limited to:
(b) Permanent restoration assistance. Subject to the limitations set out below, the Regional Administrator may approve assistance for the repair, reconstruction, or replacement but not the expansion of the following publicly owned or operated facilities and certain private nonprofit facilities.