+L<FS::pkg_category> - Package category class (invoice oriented)
+
+L<FS::pkg_class> - Package class class
+
+L<FS::part_pkg> - Package definition class
+
+L<FS::part_pkg_link> - Package definition link class
+
+L<FS::part_pkg_taxclass> - Tax class class
+
+L<FS::part_pkg_option> - Package definition option class
+
+L<FS::part_pkg_report_option> - Package reporting classification class
+
+L<FS::pkg_svc> - Class linking package definitions (see L<FS::part_pkg>) with
+service definitions (see L<FS::part_svc>)
+
+L<FS::reg_code> - One-time registration codes
+
+L<FS::reg_code_pkg> - Class linking registration codes (see L<FS::reg_code>) with package definitions (see L<FS::part_pkg>)
+
+L<FS::rate> - Rate plans for call billing
+
+L<FS::rate_region> - Rate regions for call billing