The Registry of Interpreters for the Deaf (RID) offers nationally recognized certification to both Deaf and Hearing interpreters. Those who attain this certification can take their credentials anywhere in the United States and be assured that their credentials will be accepted. 

RID created the Center for Assessment of Sign Language Interpreters (CASLI) to develop, oversee, and administer exams for both the National Interpreter Certificate (NIC) and the Certified Deaf Interpreter (CDI) credentials. 

For more information, please refer to CASLI's website at:   https://www.casli.org/