Administrative Code of 1987
Section 26. Assimilated Ranks. -
(1) Except as the President may appoint, no officer of the Philippine government stationed abroad, outside the Department of Foreign Affairs, shall be assigned assimilated ranks higher than Foreign Service Officer Class I.
(2) The assignment of assimilated rank personnel of the Philippine government stationed abroad shall remain with the President who shall act on the basis of recommendations of the Department of Foreign Affairs and the Department of Budget and Management.
(3) The assimilated ranks are for purposes of compensation only and shall not confer diplomatic rank for purposes of protocol. Civil attaches shall always rank after the lowest ranking Foreign Service officer in the post.