Overview The pages in this section constitute a document type definition (DTD) detailing the rail industry standard for coding specifications suggested for the exchange of electronic data catalogs.   Release 1.0, February 27, 1996 Distributed by the Subcommittee on Information Standards   Table of Contents Foreword Foreword: List of RIF Members Foreword: Glossary Foreword: Overview of EPCES Techniques EPCES Specification Appendix A: SGML Declaration Appendix A: DTD Tree Structure Charts Appendix A: DTD Appendix B: SGML Elements Descriptions