CT (Certificate of Transliteration)

"Holders of this certificate are recognized as fully certified in transliteration and have demonstrated the ability to transliterate between English-based sign language and spoken English for both sign-to-voice and voice-to-sign tasks. The transliterator’s ability to interpret is not considered in this certification. Holders of the CT are recommended for a broad range of transliteration assignments." (RID.org: generalist certications)

This test is no longer given. Certification can be held in conjunction with the CI (Certificate of Interpretation)