Here (PDF). The description:
This request for proposal (RFP) is to contract for legal drafting services to be provided for the Penobscot Nation, a federally recognized Indian tribe, for the period of December 1, 2016 to September 30, 2017. Services to be provided will include assisting the Penobscot Nation Constitution Committee to draft its Constitution in time to be considered for adoption at the Nation’s June 2017 General Meeting (legislative body). Following the drafting of the Constitution, drafting of a code governing the operations of the Penobscot Nation Judicial System, comprised of the trial-level Tribal Court and the Court of Appeals will be undertaken.