Whereas the transmission of data relating to the initiation, renewal, or cancellation of serial subscriptions has developed into a robust and standardized system based on Electronic Data Exchange (EDI), the ability of serialists to effectively exchange and manipulate information pertaining to data about the specific content and access rights to the subscriptions at a given library has become increasingly problematic. The rapid development of local and vendor systems designed to handle subscription data has necessitated that this data be standardized for smooth exchange. Ted Fens' and Regina Reynolds' discussion of the standards work underway at NISO and EDltEUR. as well as the current ISO revision of the ISSN. provides an overview of the framework for potential resolution to this challenge.