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Underlined terms in the definitions refer to other defined terms.

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Term	Definition
Administrative boundary	A geographic polygon or polygons representing the perimeter of one administrative unit.
Administrative heirarchy	A set of recognized and hierarchical levels of administrative authority and geographic partition of a country or territory. Increasing administrative level numbers represent lower (geographically smaller and administratively subservient) units, with administrative level 0 representing the entire country, administrative level 1 representing the next lower level, and so on. EXAMPLE: Afghanistan is divided into provinces, which are in turn divided into districts. Thus Afghanistan's administrative level 0 is the country (Afghanistan), administrative level 1 is the provinces, and administrative level 2 is the districts. In some countries an administrative level may consist of more than one type of administrative unit. EXAMPLE: The United States of America's administrative level 1 consists of States, the District of Colombia, and further remote units. EXAMPLE: Canada's administrative level 1 consists of provinces and territories.
Administrative level
Administrative unit

Term	Definition



COD	See Common Operational Dataset
COD-AB	See Administrative Boundary COD
COD-PS	See Population Statistics COD
COD-CS	sEE Country-Specific COD

Common Operational Dataset (COD)	Authoritative reference datasets needed to support operations and decision-making for all actors in a humanitarian response. They provide essential baseline data and data standards that allow humanitarian actors to collaborate, coordinate and exchange information. CODs provide the basis for a common operational picture and a shared situational awareness. .

Core Common Operatioanal Datasets	Administrative Boundary CODs (COD-AB) and Population Statistics CODs (COD-PS)

Term	Definition
Emergency Response Preparedness	To enhance emergency preparedness within the multilateral humanitarian system, the Inter-Agency Standing Committee (IASC) has developed the Emergency Response Preparedness (ERP) approach, which was adopted for field testing in August 2015. The approach is based on a review of relief operations over the past decade and enables the humanitarian community to proactively prepare for crises requiring a coordinated international response.