Federal Aviation Regulation Sec. 25.815

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 capacity	Minimum passenger aisle width (inches)
Passenger seating capacity	Less than 25 in. from floor	25 in. and more from floor
10 or less	¹12	15
11 through 19	12	20
20 or more	15	20

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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