; and (E) shall include provisions to address new discoveries, which may include halting the activity and returning to scoping stage consultation. (f) Termination of scoping stage consultation without a memorandum of agreement The agency shall make a good faith effort through sustained interaction and collaboration to reach a consensus resulting in a memorandum of agreement. If, after a good faith effort, the agency determines that further consultation will not be productive, it may terminate consultation by providing all consultation partners with a written notification and explanation for its decision, signed by the head of the agency, and proceed to the decision stage procedures described in section 104. The affected Indian Tribal Governments may at any point decide to terminate consultation. In such case, the agency shall provide the affected Indian Tribal Governments with the opportunity to submit a written statement, explanation, or comment on the consultation proceedings that will become part of the agency’s official consultation record. 104. Decision stage procedures (a) Proposal document The agency shall compile a document consisting of the plan for the activity, its anticipated Tribal impacts, any memorandum of agreement, and any written statements made by consulting partners during the scoping stage as described in section 103. The agency shall include sufficient supporting documentation to the extent permitted by law and within available funds to enable any reviewing parties to understand its basis. The agency may use documentation prepared to comply with other laws to fulfill the requirements of this provision to the extent that such documentation is sufficiently pertinent to and focused on the relevant issues as to allow reasonable ease of review. The agency shall mail and, if possible, email a copy of the Proposal Document to all affected Indian Tribal Governments, including those that withdrew from the process. At a minimum, the document shall go to the Tribal leader and all members of any elected