An aisle is a fore to aft passageway separating seating
areas between seats. As such this paragraph does not apply to aisles.
However, the width of such aisles should be such as to allow the craft
to comply with the provisions of section 4.8 on evacuation. Nor does
this clause apply to spaces between adjacent rows of seats, but the
width of such spaces (i.e. the seat pitch) should be such as to allow
the craft to comply with section 4.8 on evacuation.