In 2023, the Navajo Nation Council comprehensively amended the Procurement Act,1 which included removing the Sole Source procurement method, one often used by the divisions, departments, offices, and programs of the Navajo Nation (“Navajo Nation”).2 Now, under the Procurement Act, the Navajo Nation may source a procurement from a specific vendor when using the Direct Source or Solo Source procurement methods if the facts of the procurement meet the requirements of the method. This memorandum provides the Navajo Nation guidance for understanding when a procurement qualifies for use of either the Direct Source or Solo Source method and the procedures necessary to appropriately complete each method in the current legal environment.