Sec. 29.815 - Main aisle width.

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

------------------------------------------------------------------------
                                                 Minimum main passenger
                                                       aisle width
                                               -------------------------
          Passenger seating capacity             Less than    25 Inches
                                                 25 inches     and more
                                                 from floor   from floor
                                                  (inches)     (inches)
------------------------------------------------------------------------
10 or less....................................           12           15
11 through 19.................................           12           20
20 or more....................................           15           20
------------------------------------------------------------------------
\1\ A narrower width not less than 9 inches may be approved when
  substantiated by tests found necessary by the Administrator.

[Doc. No. 5084, 29 FR 16150, Dec. 3, 1964, as amended by Amdt. 29-12, 41 FR 55472, Dec. 20, 1976]