42 C.F.R. § 137.361 Does the Secretary have any other opportunities to approve planning or design documents prepared by the Self-Governance Tribe?
Title 42 - Public Health
Yes, but only if there is an amendment to the construction project agreement that results in a significant change in the original scope of work.
Title 42: Public Health
PART 137—TRIBAL SELF-GOVERNANCE
Subpart N—Construction
Roles of the Secretary in Establishing and Implementing Construction Project Agreements
§ 137.361 Does the Secretary have any other opportunities to approve planning or design documents prepared by the Self-Governance Tribe?

