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1. Four stories or less above grade plane. 2. The floor level of the highest story is 35 feet (10668 mm) or less above the lowest level of fire department vehicle access. 3. The floor level of the lowest story is 35 feet (10668 mm) or less below the lowest level of fire department vehicle access. {No change to remainder of section.} Amend Section 903.3.1.2.2, Corridors and balconies, to read as follows: 903.3.1.2.2 Corridors and balconies. Sprinkler protection shall be provided in all corridors and for all balconies. {Delete the rest of this section.} Delete existing Section 903.3.1.2.3, Garages and attics, and replace with the following: 903.3.1.2.3 Attached garages and attics. Sprinkler protection is required in attached garages, and in the following attic spaces: 1. Attics that are used or intended for living purposes or storage shall be protected by an automatic sprinkler system. 2. Where fuel -fired equipment is installed in an unsprinklered attic, not less than one quick - response intermediate temperature sprinkler shall be installed above the equipment. 3. Attic spaces of buildings that are two or more stories in height above grade plane or above the lowest level of fire department vehicle access. 4. Group R-4, Condition 2 occupancy attics not required by Item 1 or 3 to have sprinklers shall comply with one of the following: 4.1. Provide automatic sprinkler system protection. 4.2. Provide a heat detection system throughout the attic that is arranged to activate the building fire alarm system. 4.3. Construct the attic using noncombustible materials. 4.4. Construct the attic using fire -retardant -treated wood complying with Section 2303.2 of the International Building Code. 4.5. Fill the attic with noncombustible insulation. Amend Section 903.3.1.3, NFPA 13D sprinkler systems, to read as follows: 903.3.1.3 NFPA 13D Sprinkler Systems. Automatic sprinkler systems installed in one- and two- family dwellings; Group R-3; Group R-4, Condition 1; and townhouses shall be permitted to be installed throughout in accordance with NFPA 13D or in accordance with state law. Add Section 903.3.1.4., Freeze protection; 903.3.1.4.1, Attics; and 903.3.1.4.2, Heat trace/insulation; to read as follows: 903.3.1.4 Freeze protection. Freeze protection systems for automatic fire sprinkler systems shall be in accordance with the requirements of the applicable referenced NFPA standard and this section.