Final answer:
DoD personnel at U.S. Embassies and Consulates follow State Department Guidelines for the handling of classified materials, in accordance with the authority of the State Department over diplomatic missions.
Step-by-step explanation:
DoD personnel assigned to U.S. Embassies and Consulates follow specific guidelines for the transmission and transportation of classified material. The documents DoD personnel are required to adhere to are generally outlined in the State Department Guidelines. As these personnel are stationed in diplomatic missions such as embassies, they must coordinate with the State Department, which oversees the Foreign Service and embassies abroad.
Implementing and administering foreign policy activities involves diplomacy and the handling of sensitive and classified information. The correct policy documents to follow would be the ones used and outlined by the agency that has administrative control over the embassy or consulate. In this case, as the embassies are under the authority of the State Department, the policies pertaining to classified material transmission and transportation would be the State Department Guidelines. The State Department oversees the U.S. diplomatic missions around the world and provides direct guidance to its personnel on matters of security and intelligence dissemination.