22 C.F.R. § 72.23
If the United States citizen or non-citizen national who has died abroad did not leave a will that applies locally, and the personal estate in the consular district consists only of clothing and other personal effects that the consular officer concludes in his or her discretion is worth less than $2000 and/or cash of a value equal to or less than $2000, the consular officer may decide in his or her discretion to accept an affidavit from the decedent's next of kin as satisfactory evidence of the next of kin's right to take possession of the personal estate. The Department must approve any release based on an affidavit of next of kin where the consular officer concludes that the personal estate effects are worth more than $2000 and/or the cash involved is of a value more than $2000 and generally will consider approving such releases only in cases where state law prohibits the appointment of executors or administrators for estates that are valued at less than a specified amount and the law of the foreign country where the personal property is located would not prohibit such a release.
22 C.F.R. § 72.23