An Internet-Draft is not an archival document like an RFC is. Instead, an Internet-Draft is a preliminary or working document that is valid for a maximum of six months and may be updated, replaced, or made obsolete by other documents at any time. It is inappropriate to use an Internet-Draft as reference material or to cite it other than as a "work in progress". Although most of the Internet-Drafts are produced by the IETF, any interested organization may request to have its working documents published as Internet-Drafts.