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TERP Sign Language Services provides access to communication between Deaf, Deaf-Blind, Hard-of-Hearing, and Hearing Consumers across Washington State. We offer services specific to American Sign Language and are able to serve each client’s individual linguistic need.

TERP Sign Language Services offers a unique hybrid business model of “on-call” staff and independent contractors from the interpreting community. This means that when we receive a last minute request (from 1 hour to 24 hours notice) the “on-call” interpreter for that particular day reports immediately to the work site to provide services. In addition, we have a list of highly skilled interpreters available for scheduled and on-going work that the community may need. The option for your company to have “on-call” staff available to you with just one call is beneficial for everyone; it reduces stress and last minute scrambling on the part of your staff.

The community relies on TERP Sign Language Services to provide emergent and same-day interpreting needs and we aspire to serve you and the community with highly skilled interpreters at a competitive rate.


In addition to providing unique same-day “on-call” service, TERP Sign Language Services offers a wide variety of expertise. We screen and place interpreters in specific interpreting situations in order to allow them to utilize their strengths and act in a professional, ethical manner. Many of our interpreters already hold national certification through the Registry of Interpreters for the Deaf (RID) and for those working towards this goal we offer support and mentoring. Our interpreters have interpreted for over 39 births, multiple stage performances, and much more!  In addition, our interpreters that specialize in all aspects of the community, such as, educational settings, medical settings, legal settings, theater performances, religious settings, for profit and nonprofit business settings.