What is "REL TO" used for (in this instruction's context)?

• A. A marking that may be applied (when warranted and consistent with policy) to properly categorized CUI with export control/licensing requirements when a foreign disclosure agreement exists.
• B. A marking that prohibits any foreign release.
• C. A marking for internal use only.
• D. A marking for declassification.

Answer: (A)

REL TO is a dissemination-control marking used with CUI to specify who outside the originator’s organization may receive the information. It comes into play when the CUI carries export-control or licensing requirements and there is a foreign disclosure agreement in place. By applying this marking, you’re signaling the authorized foreign recipients or jurisdictions and ensuring any sharing outside the U.S. or with foreign nationals complies with policy and legal controls. This helps prevent unauthorized foreign release and keeps handling aligned with the applicable rules.

Why this is the best fit: it directly describes the purpose of REL TO—defining permitted foreign recipients when export controls or licensing apply—only used when such disclosure is warranted and policy-compliant. The other options describe different concepts (strict internal use, blanket prohibition of foreign release, or declassification), which do not match the function of REL TO.