2010 ADA Standards for Accessible Design Pocket Guide

1002.4.7.1 Shoulder-to-Shoulder Seating.

Where an amusement ride provides shoulder-to-shoulder seating, companion seats shall be shoulder-to-shoulder with the adjacent wheelchair space.

EXCEPTION: Where shoulder-to-shoulder companion seating is not operationally or structurally feasible, compliance with this requirement shall be required to the maximum extent practicable.