The King's Regulations (first published in 1731 and known as the Queen's Regulations when the monarch is female) is a collection of orders and regulations in force in the Royal Navy, British Army, Royal Air Force, and Commonwealth Realm Forces (where the same person as on the British throne is also their separate head of state), forming guidance for officers of these armed services in all matters of discipline and personal conduct. Originally, a single set of regulations were published in one volume. By the mid 19th century, there were separate editions of the Queen's Regulations for the Navy and the Army, and there is now one for each of the United Kingdom's armed forces.