2013 California Standards for Accessible Design Pocket Guide
11B-407.4.7.2 Keypads.
Keypads shall be identified by characters complying with Section 11B-703.5 _|Signs; Visual Characters|_ and shall be centered on the corresponding keypad button. The number five key shall have a single raised dot. The dot shall be 0.118 inch (3 mm) to 0.120 inch (3.05 mm) base diameter and in other aspects comply with Table 11B-703.3.1 _|Braille Dimensions|_.
ETA Editor's Note
The preceding 2013 CBC requirements for elevator controls at 11B-407.4.6 and 11B-407.4.7 are more stringent than those of 2010 ADAS.
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