22 C.F.R. § 72.3
If a consular office learns that a United States citizen or non-citizen national employee or dependent of an employee of a member of the United States Armed Forces, or a United States citizen or non-citizen national employee of another department or agency or a dependent of such an employee, or a Peace Corps volunteer as defined in 22 U.S.C. 1504(a) or dependent of a Peace Corps volunteer has died while in the officer's consular district while the employee or volunteer is on assignment abroad, the officer should notify the Department. The consular officer should not attempt to notify the next of kin (or legal guardian) and legal representative of the death, but rather should assist, as needed, the appropriate military, other department of agency or Peace Corps authorities in making notifications of death with respect to such individual.
22 C.F.R. §72.3