Courts & Judiciary
Have You Been Served? International Service of Process by Registered Mail
The international service of process by registered or certified mail, return receipt requested, is a viable option for serving defendants in many countries around the world. Rule 4(f)(2)(C) of the U.S. Federal Rules of Civil Procedure allows service by mail, unless the law of the foreign country prohibits such service. The United States is party to two treaties that deal with international service of process.