To reach another person on the Internet you have to type an address into your computer - a name or a number. That address has to be unique so computers know where to find each other. ICANN coordinates these unique identifiers across the world. Without that coordination we wouldn't have one global Internet.

The Label Generation Rules (LGR) for the Root Zone determine which Unicode code points are permitted in the root zone, which variant labels (if any) may be allocated in the root zone, and which variant labels (if any) are automatically blocked.

This paper is the proposal from the Task Force on Arabic Script IDNs (TF-AIDN) on which codepoints in the Arabic script block should be allowed or disallowed in the root zone.