44 C.F.R. § 7.7
Every application for Federal financial assistance to which this regulation applies, and every application for Federal financial assistance to provide a facility shall, as a condition to its approval and the extension of any Federal financial assistance pursuant to the application, contain or be accompanied by an assurance that the program will be conducted or the facility operated in compliance with all requirements imposed by or pursuant to this regulation. In the case of an application for Federal financial assistance to provide real property or structures thereon, the assurance shall obligate the recipient, or, in the case of a subsequent transfer, the transferee, for the period during which the real property or structures are used for a purpose for which the Federal financial assistance is extended or for another purpose involving the provision of similar services or benefits. In the case of personal property the assurance shall obligate the recipient for the period during which he retains ownership or possession of the property. In all other cases the assurance shall obligate the recipient for the period during which Federal financial assistance is extended pursuant to the application. The responsible agency official shall specify the form of the foregoing assurances and the extent to which like assurances will be required of subgrantee, contractors and subcontractors, transferees, successors in interest, and other participants. Any such assurance shall include provisions which give the United States a right to seek its judicial enforcement.
44 C.F.R. §7.7