In general, an Internet Standard is a specification that is stable and well-understood, is technically competent, has multiple, independent, and interoperable implementations with operational experience, enjoys significant public support, and is recognizably useful in some or all parts of the Internet.
Not all specifications of protocols or services for the Internet should or will become Internet Standards. Such non-standards track specifications are not subject to the rules for Internet standardization; generally, they will be published directly as RFCs at the discretion of the RFC editor. These RFCs will be marked as "Experimental" or "Informational". Such non-standards-track documents do not necessarily reach the level of Standard.