US Army Regulation 25-50. The Army Regulation (AR) 25-50 Preparing and Managing Correspondence is the United States Army’s administrative regulation that “establishes three forms of correspondence authorized for use within the Army: a letter, a memorandum, and a message.”Click to see full answer. Keeping this in view, how do you write a regulation Army memorandum?Skip a line, and type “SUBJECT,” followed by a colon, two spaces and the subject of the memorandum in all capital letters. Press “Enter” three times, and start the body of the memorandum with a short, concise, to-the-point sentence, followed by the main idea or the reason for writing.Also, what is an Army regulation? Army regulations are authoi’ita tive directions as to the details of military duty and discipline. His function as Commander in Chief authorizes him to issue, personally or through his military subordinates, such or ders and directions as are necessary and propel’ to insure order and discipline in the Army. Beside this, what font is used for Army memorandum? Arial What regulation covers chain of command?It provides guidance covering military discipline and conduct, precedence of rank, and the military Equal Opportunity (EO) Program. What is meant by the term “Chain of Command?” It is the succession of commanders, superior to subordinate, through which command is exercised.