<ruleset name="name-of-your-coding-standard"
         xmlns="http://pmd.sf.net/ruleset/1.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://pmd.sf.net/ruleset/1.0.0
                      http://pmd.sf.net/ruleset_xml_schema.xsd"
         xsi:noNamespaceSchemaLocation="http://pmd.sf.net/ruleset_xml_schema.xsd">
    <description>Description of your coding standard</description>

    <rule ref="rulesets/codesize.xml/CyclomaticComplexity" />
    <!-- ... -->
</ruleset>