This note is designed as a reference and primer on these key sovereign debt-related Fund policies. It focuses on how to establish that a program is “fully financed” (i.e., the financing assurances policy), how to handle arrears owed by a member to its official and private creditors (i.e., the lending into arrears policies), and how to establish safeguards for continued Fund lending at the stage of program reviews (i.e., financing assurances reviews). It also provides guidance on the more general role of the Fund in debt-restructuring situations. It is the first comprehensive operational guidance on these policies, replacing the guidance previously available at the departmental level.