Where provisions of Chapter 21 of IBC are adopted by reference, the following terms shall be reset in italic type: "AAC masonry"; "adhered masonry veneer"; "bed joint"; "chimney"; "fireplace"; "fireplace throat"; "fire-resistance rating"; "hollow masonry unit"; "masonry unit"; "mortar"; "solid masonry unit"; "stone masonry"; "structural clay tile"; "surface-bonding mortar" and "wythe."