This standard is part of a proposed set of standards for DIS applications. Each standard in the proposed set describes one or more of the several elements that constitute the DIS environment. As a whole, the set of standards will define an interoperable simulated battle environment. This particular standard addresses the communications services to be used to support distributed interactive simulation appplications. This standard defines the requirements for the communication services to be used to support DIS applications. This standard also provides two communication profiles which adhere to the service requirements.