The essential skill of the interpreter is the ability to interpret from source to target language. Competencies shall be demonstrated by a post-secondary education, preferably a recognized degree in interpretation, translation, or a related field, the completion of a language proficiency test, and documented experience in the field.

The role of the interpreter is to facilitate communication by conveying a message as faithfully as possible between two parties who do not share a common language. He/she is not to elaborate, explain omissions, disclose information between parties, filter communication, react to, or participate in, discussions, adapt the register, intervene as mediator or explain cultural differences.