This bill proposes an amendment to the Aamodt Litigation Settlement Act, specifically targeting Section 623(g) of the original legislation. Its primary purpose is to revise the conditions under which the completion dates for the Regional Water System can be extended. The amendment establishes a new process for determining substantial completion, allowing for greater flexibility in project timelines. Under the new provision, these critical completion dates may be extended if there is a mutual agreement among all key stakeholders. This includes the Pueblos , the United States (acting through the Secretary), the State , the City , and the County , provided they concur that such an extension is reasonably necessary for the project's successful completion.