Final answer:
An execution order (EXORD) is transmitted by the Secretary of Defense to the supported commander after selecting a Course of Action during CAP, in accordance with national security objectives.
Step-by-step explanation:
Once the Course of Action has been selected during the Crisis Action Planning (CAP) process, the Secretary of Defense (SecDef) approves and transmits an execution order (EXORD) to the supported commander and the Joint Planning and Execution Community (JPEC).
The given reference from Congress aligns with the broader context of military operations where such an execution order would be relevant. This order typically details the approved actions to be taken in response to a situation, while ensuring alignment with the national security objectives as stipulated by the President and Congress.