ar26(9)
(9) While the assembly is in session, on the assembly floor in the rectangular area bounded on 4 corners by the pillars in the front and back of the chamber, members and other individuals should dress appropriately, which has traditionally been considered to include a coat and tie for men and appropriate attire for women. In this area, no member or other individual may wear an overcoat or hat. The presiding officer may exempt individuals, other than members, from the requirements of this subsection when appropriate.