A credential issued based on proof of possession and control of a PIV Card. Derived PIV credentials are typically used in situations that do not easily accommodate a PIV Card, such as in conjunction with mobile devices.
Sources:
FIPS 201-3 under Derived PIV Credential

  An X.509 Derived PIV Authentication certificate, which is issued in accordance with the requirements specified in this document where the PIV Authentication certificate on the Applicant’s PIV Card serves as the original credential. The Derived PIV Credential is an additional common identity credential under HSPD-12 and FIPS 201 that is issued by a Federal department or agency and that is used with mobile devices.
Sources:
NIST SP 800-157 under Derived PIV Credential

  A credential issued based on proof of possession and control of the PIV Card, so as not to duplicate the identity proofing process as defined in [NIST SP 800-63-2]. A Derived PIV Credential token is a hardware or software based token that contains the Derived PIV Credential.
Sources:
NIST SP 800-79-2 under Derived PIV Credential

  An X.509 Derived PIV Authentication certificate with associated public and private key that is issued in accordance with the requirements specified in this document where the PIV Authentication certificate on the applicant’s PIV Card serves as the original credential. The Derived PIV Credential (DPC) is an additional common identity credential under Homeland Security Presidential Directive-12 and Federal Information Processing Standards (FIPS) 201 that is issued by a federal department or agency and is used with mobile devices.
Sources:
NIST SP 1800-12b under Derived PIV Credential