It takes an average of 8 or more years to become fluent in American Sign Language (ASL). The proficiency chart below (created by American Council on the Teaching of Foreign Languages) shows levels of ...

American Sign Language (ASL) is the fourth most-studied foreign language on U.S. college campuses. ASL is a visual language that involves the precise use of the hands, body, and facial expression to ...

The Sign Language Proficiency Interview (SLPI:ASL) involves a one-to-one conversation in sign language between an interviewer and candidate/interviewee. Interview content varies according to the ...