The Transportation Security Administration has updated the list that identifies TWIC card readers that have successfully completed the Initial Capability Evaluation (ICE).
Two ICE lists are maintained. The first list details portable and fixed readers which directly support the TWIC Privacy Key (TPK) enciphered on card reference biometrics during registration and in operation. The second list details portable and fixed readers which implement an alternate operational biometric solution. The TPK enciphered on card reference biometrics is used only during registration into a Physical Access Control System (PACS) prior to having the cardholder biometrically enroll. (Such a verification and validation process of the card and cardholder prior to local enrollment into an operational biometric solution is required to preserve the Chain of Trust).