This brief paper summarizes requirements of the Americans with Disabilities Act (ADA) of 1990 related to persons who are deaf or hard of hearing. The following topics are addressed: what is meant by "hard of hearing" and deafness; the effect of hearing loss on communication at work; types of jobs that people who are deaf or hard of hearing have; accommodations for the individual who is deaf or hard of hearing during the employee selection process (such as allowing help with completing the written application and using a sign language interpreter during the job interview); enhancing productivity on the job; and on-the-job accommodations to enhance communication in face-to-face, interactive distance communication, group situations, and performance evaluations. Examples of such accommodations include using assistive listening devices, ensuring availability of Text Telephones, and using captioned video training materials. A listing of 12 resources is provided. (DB)