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Federal Aviation Regulations

Sec. 25.815 — Width of aisle.

The passenger aisle width at any point between seats must equal or exceed the values in the following table:

Passenger seating capacityMinimum passenger aisle width (inches)
Less than 25 in. from floor25 in. and more from floor
10 or less11215
11 through 191220
20 or more1520

1A narrower width not less than 9 inches may be approved when substantiated by tests found necessary by the Administrator.

[Amdt. 25–15, 32 FR 13265, Sept. 20, 1967, as amended by Amdt. 25–38, 41 FR 55466, Dec. 20, 1976]

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