In the United States, dual enrollment, also called concurrent enrollment, programs allow students to be enrolled in two separate, academically related institutions.
The Enrollment over Secure Transport, or EST is a cryptographic protocol that describes an X.509 certificate management protocol targeting public key infrastructure clients that need to acquire client certificates and associated certificate authority certificates.
The X12 834 EDI Enrollment Implementation Format is a standard file format in the United States for electronically exchanging health plan enrollment data between employers and health insurance carriers.