Title II Technical Assistance Manual

17) Visual alarms

ADAAG: Contains details about features required on visual alarms for individuals with hearing impairments, including type of lamp, color, intensity, and location. Flash rate must be at a minimum of 1Hz and maximum of 3Hz (§4.28.3).

UFAS: Contains much less detail. Allows faster flash rate of up to 5Hz (§4.28.3).