SECTION R325 MEZZANINES
Pursuant to the UCC, delete Section R325.5 and replace as follows:
R-R325.5 Openness. Mezzanines shall be open and unobstructed to the room in which they are located except for walls not more than 36 inches (914 mm) in height, columns and posts.
Exception: Mezzanines or portions thereof are not required to be open to the room in which they are located, provided that the aggregate floor area of the enclosed space is not greater than 10 percent of the mezzanine area.
Pursuant to the UCC, delete Section R325.6 and replace as follows:
R-R325.6 Habitable attic. A habitable attic shall not be considered a story where complying with all of the following requirements:
   1.   The occupiable floor area is not less than 70 square feet (17 m2), in accordance with Section R304.
   2.   The occupiable floor area has a ceiling height in accordance with Section R305.
   3.   The occupiable space is enclosed by the roof assembly above, knee walls (if applicable) on the sides and the floor-ceiling assembly below.