Read this on: http://www.icann.org/financials/staff-paper-cost-recovery-10nov00.htmSnippet:
The
proposed classes are:
Class 1 - Commercial. (Either the registry, or the registrar,
or both, are operated as for-profit entities.) Registrant categories are as follows.
1a
- Worldwide availability, unrestricted as to registrants. E.g., .com, .nu, .tv, .cc
1b
- Worldwide availability, restricted as to registrants. E.g., possible new TLDs such
as .air.
1c - Restricted to country or territorial presence of registrant, E.g.,
.au, .ca
Class 2 - Noncommercial. (Both the registry and the registration activities
are operated on a non-profit or not-for-profit, cost recovery basis.)
2a - Worldwide
availability, unrestricted as to registrants. E.g., possible new TLDs such as .health
2b
- Worldwide availability, restricted as to registrants. E.g., .int, .union
2c -
Restricted to country or territorial presence of registrant.
Class 3 - Special
Purpose. For registries with no cost recovery structure, or qualifying under other
criteria such as demonstrated financial hardship. Currently is set at $500 per year.
Note:
this paper is about ICANN Cost Recovery Structure for Domain Name Registries not
TLD reports, but it does pretty much say .union was accepted in the text.