Not later than 60 days after January 17, 2014, the Secretary shall, in consultation with the heads of other relevant executive agencies, issue guidance with criteria for determining eligibility for, and order of payments to, survivors and beneficiaries of any employee or of an individual in a special category serving in an uncompensated capacity for that agency who dies as a result of injuries sustained in the performance of duty while subject to the authority of the chief of mission pursuant to section 3927 of this title.