Individuals who are bilingual or an interpreter for the deaf may enroll to bill as an interpreter. Upon application for enrollment, the bilingual applicant must identify the languages for which he/she is applying to interpret and/or translate and document completion of System Overview for Bilingual Interpreters and Translators in the Illinois Early Intervention System and oral and/or written language proficiency using approved testing procedures. 225 ILCS 443 Interpreter for the Deaf Licensure Act of 2007 became effective January 1, 2009. In part this statute states the following: Sec. 15. Licensure requirement.