State and local governments must ensure effective communication with individuals with disabilities.

Where necessary to ensure that communications with individuals with hearing, vision or speech impairments are as effective as communications with others, the public entity must provide appropriate auxiliary aids. Auxiliary aids include such services or devices as qualified interpreters, assistive listening headsets, television captioning and decoders, telecommunications devices for deaf persons (TDDs), videotext displays, readers, taped texts, Brailled materials and large-print materials. A public entity may not charge an individual with a disability for the use of an auxiliary aid. 

Telephone emergency services, including 911 services, must provide direct access to individuals with speech or hearing impairments.

Public entities are not required to provide auxiliary aids that would result in a fundamental alteration in the nature of a service, program or activity, or in undue financial and administrative burdens. However, public entities must still furnish another auxiliary aid, if available, that does not result in a fundamental alteration or undue burdens.