Text telephones (TTY) required by 521 CMR 37.8, Text Telephones shall be identified by the international TTY symbol (SeeFig. 41c). In addition, if a facility has a public text telephone (TTY), directional signage indicating the location of the nearest text telephone (TTY) shall be placed adjacent to all banks of telephones that do not contain a text telephone (TTY). Such directional signage shall include the international TTY symbol. If a facility has no banks of telephones but a public text telephone (TTY) is available, the directional signage shall be provided at the entrance (e.g., in a building directory).
521 CMR, § 41.9