DIACAP is established by DoD Instruction 8510.01.
The relevant DoD Instruction is DoDI 8500.2, which states that the IA posture must be reviewed at least once a year.
DoD Information Assurance Certification and Accreditation Process (DIACAP)It is the title of DoD Instruction 8510.01, which defined the process for certification and accreditation of DoD information systems (computer, computer networks, etc.) for Information Assurance (confidentiality, integrity, availability, non-repudiation, etc.).It has since been replaced by the RMF process - although as of 2016 some packages were still being allowed to process for accreditation under DIACAP with ATO's issued for much shorter periods of time.
According to DODI 8500.2, the "DIACAP team members" are defined as: E2.25. DIACAP Team. Comprised of the individuals responsible for implementing the DIACAP for a specific DoD IS. At a minimum the DIACAP Team includes the DAA, the CA, the DoD IS program manager (PM) or system manager (SM), the DoD IS IA manager (IAM), IA officer (IAO), and a user representative (UR) or their representatives.
According to DODI 8500.2, the "DIACAP team members" are defined as: E2.25. DIACAP Team. Comprised of the individuals responsible for implementing the DIACAP for a specific DoD IS. At a minimum the DIACAP Team includes the DAA, the CA, the DoD IS program manager (PM) or system manager (SM), the DoD IS IA manager (IAM), IA officer (IAO), and a user representative (UR) or their representatives.
No - DIACAP required that the posture be at least partially reviewed every year (for the Annual Security Review - aka ASR) except for very sensitive systems that must be reviewed more often - usually every six months. A comprehensive review is required every 3 years under DIACAP.
According to DoDI 8510.01, Enclosure 2: E2.25. DIACAP Team. Comprised of the individuals responsible for implementing the DIACAP for a specific DoD IS. At a minimum the DIACAP Team includes the DAA, the CA, the DoD IS program manager (PM) or system manager (SM), the DoD IS IA manager (IAM), IA officer (IAO), and a user representative (UR) or their representatives.
DIACAP replaced DITSCAP as the process for certification and accreditation of DoD information systems. DIACAP supersedes DITSCAP.
DODI 8510.01 (DIACAP) is the current DoD process for IA Certification and Accreditation of DoD systems. It replaced DITSCAP.
DoD Information Assurance Certification and Accreditation Process. The term is general to all of DoD, not just the Army.
C. Continue DITSCAP This might have been a correct answer to a quiz in the past, but DoDI 5200.40 (DITSCAP) and DoD 8510.1-M (DITSCAP Manual) were cancelled when DoDI 8510.01 (DIACAP) was issued on November 28, 2007. If a system does not have a signed Phase One System Security Authorization Agreement (SSAA) they are required to conduct their certification and accreditation under DIACAP. Anything prepared under DITSCAP is useful only as reference material to aid in preparing the DIACAP documentation.
DoD InfDoD Information Assurance Certification and Accreditation Programormation Assurance Certification and Accreditation Program