Provide expressive interpreting and transliteration from spoken English to American Sign Language, and voice interpreting from American Sign Language to spoken English, in the mode requested by the consumer, including Conceptually Accurate Signed English, Pidgin Signed English, and Signed Exact English. An active certification from one of the following bodies, at the level shown: Registry of Interpreters for the Deaf: National Interpreter Certification at any level, including National Interpreter Certification Advanced or National Interpreter Certification Master, or Certificate of Interpretation and Certificate of Transliteration.