This section provides more detailed information in areas where the Debian implementation policy differs from the LSB specification. It is intended to provide sufficient detail to serve as a reference fore for maintainers of DTD and stylesheet packages.
Policies regarding the layout and usage for directories under /usr/share/sgml is described, as are some policies and details regarding SGML catalogs. The placement and naming conventions of customization and/or configuration files that are often part of upstream distributions is also addressed.