This document describes requirements for general Japanese layout realized with technologies like CSS, SVG and XSL-FO. The document is mainly based on a standard for Japanese layout, JIS X 4051, however, it also addresses areas which are not covered by JIS X 4051. This version integrates errata and links to related materials. この文書は,CSS,SVGおよびXSL-FOなどの技術で実現が求められる一般的な日本語組版の要件を記述したものです.この文書は,主としてJIS X