According to a USCIS Press Release: “U.S. Citizenship and Immigration Services (USCIS) has issued revised instructions for USCIS Form I-131, Application for Travel Document. The instructions include changes effective March 5, 2008 that require applicants for re-entry permits and refugee travel documents to provide biometrics (e.g., fingerprints and photographs) at a USCIS Application Support Center (ASC) for background and security checks and to meet requirements for secure travel and entry documents containing biometric identifiers.”
