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= JOSM Validator Rules =
[[JOSMImage(dialogs/validator,middle,margin-right=20,48,link=)]] 
The JOSM [wikitr:/Help/Dialog/Validator validator] ([wikitr:/Help/Validator/MapCSSTagChecker Tag checker]) can be customized with different rules based on [wikitr:/Help/Styles/MapCSSImplementation MapCSS].

== Choose Rules ==
There are base rules (e.g. [source:/trunk/resources/data/validator/geometry.mapcss Geometry] or [source:/trunk/resources/data/validator/highway.mapcss Highways]) that cover dedicated features each. They can be combined with add-on rules that cover more special topics:

[[Styles(en|rules|short description|author|description|version|More details)]]

To add more rules to your list, open the [wikitr:/Help/Preferences/Validator Validator Preferences]: Edit -> Preferences -> [[JOSMImage(preferences/validator,top,15,link=)]] Validator -> Tag Checker Rules (2nd tab)''

== Create new rules ==
If you want to add your rules to this list use one of the two options:
 * Simply create a page in this wiki with your rule, e.g. [wikitr:/Rules/MyRuleName]. This is similar to [wikitr:/Styles#Makeyourstyleavailabletootherusers Styles] and [wikitr:/Presets#Createnewpresets Presets]. See there for more information about this topic.
 * Externally hosted rule URLs can be entered when editing the [wikitr:/RulesSource RulesSource page].
If your rule applies to a limited area, use [wikitr:/Help/Styles/MapCSSImplementation#Territoryselector Territory selectors], to limit the execution to the area.

=== Rules managed in JOSM wiki ===
JOSM wiki based Rules is the preferred method.

[[TitleIndex(Rules/)]]

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