Anil John

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Level of Assurance (LOA)

cite #desc Description of Assurance Levels

This [..] describes four identity authentication assurance levels for e-government transactions. Each assurance level describes the agency’s degree of certainty that the user has presented an identifier (a credential in this context) that refers to his or her identity. In this context, assurance is defined as (1) the degree of confidence in the vetting process used to establish the identity of the individual to whom the credential was issued, and (2) the degree of confidence that the individual who uses the credential is the individual to whom the credential was issued. 

  • Level of Assurance (LOA) 1: Little or no confidence in the asserted identity’s validity. 
  • Level of Assurance (LOA) 2: Some confidence in the asserted identity’s validity. 
  • Level of Assurance (LOA) 3: High confidence in the asserted identity’s validity. 
  • Level of Assurance (LOA) 4: Very high confidence in the asserted identity’s validity.