Consistent with the DHS Fair Information Practice Principles (FIPPs), TSA retains PII only for as long as is necessary to fulfill the specified purpose(s) of biometric technology pilots. DHS FIPPs and TSA’s PIAs provide guidance on matters such as transparency, specific use limitations, data minimization, and purpose specification for our biometric identity verification pilots. Additional information on data protection procedures for each test is available in TSA’s PIAs.