Typically, you’ll need more than one American Sign Language (ASL) interpreter on-site due to the time length. If a request is more than an hour of continuous interpreting, then it is recommended to have two ASL interpreters in order to continue providing accurate and effective communication and avoid interpreter fatigue. Another scenario, when it comes to conference interpreting for a large setting and in various languages is when you’ll need a group of linguists to provide the interpreting services.