2016 California Standards for Accessible Design Pocket Guide - Eff. Jan. 1, 2017

11B-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.