2010 ADA Standards for Accessible Design Pocket Guide
407.4.7.1.3 Symbols.
The control button for the emergency stop, alarm, door open, door close, main entry floor, and phone, shall be identified with tactile symbols as shown in Table 407.4.7.1.3. [S.H. 4.10.12]
| Control Button | Tactile Symbol | Braille Message |
| Emergency Stop |  |
 "ST"OP Three cells
|
| Alarm |  |
 AL"AR"M Four cells
|
| Door Open |  |
 OP"EN" Three cells
|
| Door Close |  |
 CLOSE Five cells
|
| Main Entry Floor |  |
 MA"IN" Three cells
|
| Phone |  |
 PH"ONE" Four cells
|
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