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Welcome to the Root Zone LGR Development Project

The Label Generation Rules (LGR) for the Root Zone determine which Unicode code points are permitted in the root zone, what variants (if any) may be allocated in the root zone, 
and what variants (if any) are automatically blocked. The Procedure followed in development 
of the Root Zone LGR relies on interaction between one or more generation panels (one per script)
 and one integration panel, as shown here.

The Procedure defines a two-pass process: Each community sharing a script (such as Arabic or Chinese) 
forms a Generation Panel and submits a proposal for rules governing what characters of its script are 
to be allowed into the root as well as identifying variant characters and their respective rules. The Integration 
Panel then evaluates each of these proposals. In doing so the Integration Panel considers all characters across all scripts 
which may be allowed in the root zone.

Stay Informed

Subscribe to the vip@icann.org public mailing list for discussions on issues related to IDN Variant TLDs and the LGR by completing the form at https://mm.icann.org/mailman/listinfo/vip.

Learn More

To learn more about the Generation Panels and the Integration Panel, follow the links on the left or right columns.

For more information on the IDN Variant TLD Program, please visit http://www.icann.org/en/resources/idn/variant-tlds.