when was the navy chief petty officer rating established
Chief petty officer is the seventh enlisted rate in the U.S. Navy and U.S. Coast Guard, just above petty officer first class and below senior chief petty officer. Chief petty officers are classified as senior non-commissioned officers. The grade of chief petty officer was established on April 1, 1893 for the U.S. Navy. The U.S. Congress first authorized the U.S. Coast Guard to use the promotion to chief petty officer on 18 May 1920.