Transportation Worker Identification Credential: Mailing Credentials to Applicants' Residences Would Not Be Consistent with DHS Policy, text, April 13, 2011; (https://digital.library.unt.edu/ark:/67531/metadc301629/m1/1/: accessed March 19, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .