This is amaintenancecategory, used formaintenance of the Wikipedia project. It is not part of the encyclopedia and containsnon-article pages, or groups articles by status rather than subject. Do not include this category in content categories (except foreponymous maintenance categories).

This is ahidden category. It is not shown on its member pages, unless the correspondinguser preference (Appearance → Show hidden categories) is set.

This category is triggered by language infoboxes which do not contain any language codes, such asISO 639-3, LingList, Guthrie, etc. (ISO 639-2 does not count, as it is not language-specific in such cases.)

Ideally, this category should be empty, apart from unclassified varieties such asDanzhou dialect, which (as of 2012) are not clearly a dialect of an ISO language, but not clearly a distinct language either.

For languages which are simply not covered by ISO, enteriso3=none, and the article will appear in a dedicated category.

For dialects of languages which are covered by ISO, add the parameterisoexception=dialect. This is how dialects should normally be treated, as ISO codes are not generally dialect-specific and therefore should not be used in such cases;iso3=none is similarly inappropriate for dialects subsumed under the ISO code of their parent language.Linguist List, Linguasphere, Guthrie and AIATSIS may, however, provide dedicated codes that are appropriate for dialect articles; if one of these is added, the article will appear in a separate category.

Ifisoexception is set totalkpage, the article won't be listed in any category at all. This is used so that archived talk pages with discussions of the info box won't pollute the category.

• Language infobox tracking categories

• Hidden categories
• Noindexed pages