Iowa Code Title I. State Sovereignty and Management [Chs. 1-38D] § 29A.23. Roll of retired officers and enlisted personnel

An officer or enlisted person who is a member of the Iowa national guard who has completed twenty years of military service under 10 U.S.C. § 12731, as evidenced by a letter of notification of retired pay at age sixty, shall upon retirement from the Iowa national guard and written request to the adjutant general be placed by order of the commander in chief on a roll in the office of the adjutant general to be known as the “roll of retired national guard military personnel”. A member registered on the roll is entitled to wear the uniform of the rank last held on state or other occasions of ceremony, when the wearing of such uniform is not in conflict with federal law.