(a) Within 10 business days of the informal conference, the person who conducted the informal conference shall mail to the Tribe/Consortium a brief summary of the informal conference. The summary must include any agreements reached or changes from the initial position of the bureau or the Tribe/Consortium.

(b) If in its judgment no agreement was reached, the Tribe/Consortium may choose to appeal the initial decision, as modified by any changes made as a result of the informal conference, under §1000.421 of this subpart to the IBIA, bureau head/Assistant Secretary, or IBCA.