3.3.1.17.Capacity of Access to Exits (See Article 3.3.1.9. for minimum widths of corridors.)

(1) The capacity of an access to exit shall be based on the occupant load of the portion of the floor area served. (2) In an access to exit the required width of ramps with a slope not more than 1 in 8, doorways, and corridors shall be based on not less than 6.1 mm per person. (3) In an access to exit the required width of a ramp with a slope more than 1 in 8 shall be based on not less than 9.2 mm per person. (4) In an access to exit from a floor area used or intended to be used for patients or residents in a Group B, Division 2 or Division 3 occupancy, the required width of corridors, doorways, and ramps shall be based on not less than 18.4 mm per person. (5) The capacity of stairs in an access to exit shall conform to the requirements for stairs in Sentences 3.4.3.2.(1) to (3). (6) In a building that is not sprinklered throughout in accordance with Sentence 3.2.5.12.(1), an access to exit that is part of the principal entrance serving a dance hall or a licensed beverage establishment with an occupant load more than 250 shall be at least one-half of the required exit width.