Real property, equipment, intangible property and debt instruments that are acquired or improved with Federal funds shall be held in trust by the recipients as trustee for the beneficiaries of the project or program under which the property was acquired or improved, and shall not be encumbered without the approval of the HHS awarding agency. Recipients shall record liens or other appropriate notices of record to indicate that real property has been acquired or constructed or, where applicable, improved with Federal funds, and that use and disposition conditions apply to the property.