The US Citizenship and Immigration Services began using a new secure blue ink on the following stamps: Department of Homeland Security Parole Stamp, ADIT Stamp – Temporary I-551 Alien Documentary Identification and Telecommunication, Refugee Stamp, Asylum Stamp and Initial/Replacement Form I-94 Stamp. This new secure blue ink will replace the red ink that was previously used. The new blue secure ink began to be used on July 1, 2014.