If you need an interpreter to include deaf people in your activity or
church service, you can call up one of these organizations who will find
an interpreter for you. Aurora serves the Syracuse and north area; RCIL
serves Oneida County, and STIC near Binghamton. The rates and
policies for Aurora are similar to the others so read them to see
what's involved.
Guidelines for working with interpreters, and in a Catholic setting in
particular, are
here. You will find them very
useful especially if you haven't needed an interpreter before.