(a) In addition to the written notice of loss requirements specified for all crops in paragraphs (b) and (c) of this section, for hand-harvested crops and for other crops determined by FSA, at least one producer having a share in the unit must notify FSA of the damage or loss through the administrative county office for the unit within 72 hours of the date damage or loss on the unit first becomes apparent. Notification required under this paragraph may be via telephone to the administrative county office during business hours or via written notice on a form prescribed by FSA as specified in paragraph (c) of this section.