2013 California Standards for Accessible Design Pocket Guide

11B-405.7.4 Change in direction.

Ramps that change direction between runs at landings shall have a clear landing 60 inches (1525 mm) minimum by 72 inches (1829 mm) minimum in the direction of downward travel from the upper ramp run. 

[S.H. 1133B.5.4.5] [Safe Harbor only applies to existing exterior ramps leading to a primary entrance.]

[2010 ADAS] 405.7.4 Change in Direction.  Ramps that change direction between runs at landings shall have a clear landing 60 inches (1525 mm) minimum by 60 inches (1525 mm) minimum.