Here:
11-12-13 PR Land Into Trust Procedures
Excerpt:
“This rule provides greater certainty to tribes in their ability to develop lands acquired in trust for purposes such as housing, schools and economic development,” said Assistant Secretary Washburn. “For such acquisitions, the rule will create a ‘speak now or forever hold your peace moment’ in the land-into-trust process. If parties do not appeal the decision within the administrative appeal period, tribes will have the certainty and peace of mind to begin development without fear that the decision will be later overturned.”