Control areas containing laboratories located above the third floor in Group B, E or I-2 occupancies may be exempted from the provisions of Sections 5003.8.3.1, 5003.8.3.3, and 5003.8.3.4 provided the following conditions are met:
- The buildings containing the laboratories are equipped throughout with automatic sprinkler protection installed in accordance with Section 903.3.1.1.
- Control areas containing laboratories located above the third floor are separated from each other and other portions of the building by a fire barrier having a fire-resistance rating of not less than two hours.
- The maximum amount of hazardous materials in storage and use in control areas containing laboratories does not exceed 10 percent of the maximum allowable quantities listed in Tables 5003.1.1(1) and 5003.1.1(2) with all increases allowed in the footnotes of those tables.
- The maximum number of control areas containing laboratories shall not exceed 5 per floor.