ISO/IEC 10179:1996/Amd.1:2003 specifies

• additional flow object classes for online display, and
• additional formatting areas for inline-display area and inter-line attachment area.

For clarification of some existing definitions in ISO/IEC 10179:1996, ISO/IEC 10179:1996/Amd.1:2003 adds the following annexes:

• Annex B; clarification of the existing types and symbols;
• Annex C; specification of formal public identifiers and their associated characteristics for various line breaking and line composition methods;
• Annex D; clarification of the grove plan and SGML property set;
• Annex E; clarification of the flow object classes and characteristics;
• Annex F; clarification of the values of characteristics.