The purpose of this Operational Guideline is to support state health authorities, programme managers and health care professionals with recommendations on appropriate management of children with SAM in the health facilities. Facility based management includes setting up and managing within the health facility premises, a functional space where these children are cared for. This Facility Based Unit is referred to as Nutritional Rehabilitation Centre or NRC in the document. While the scale and design may vary in a given situation, it is intended that the document provide the basis for a consistent set of principles that can be used by all states for facility based management of children with SAM. The Operational Guideline focuses on the Facility/Hospital based approach for the management of SAM children under 5 years of age based on the WHO and revised IAP protocols.