Final answer:
DoD Instruction 5200.48 defines how to mark CUI, providing guidance for marking, safeguarding, and disseminating CUI within the Department of Defense. Instructors have flexibility in teaching content while ensuring alignment with the C-ID.
Step-by-step explanation:
The DoD Instruction that defines how to mark Controlled Unclassified Information (CUI) is DoD Instruction 5200.48. This instruction sets the policy and provides guidance for marking, disseminating, and safeguarding CUI as well as for decontrolling such information within the Department of Defense. Aligning educational content with the C-ID does not mandate teaching or assigning all material in a textbook, allowing instructors flexibility while ensuring that necessary criteria are met. Chapters are structured to effectively address content requirements and expand worldviews.