One.com is one of the most successful web-hosting companies in Europe, and as part of its mission to create a secure network for its customers, One.com is seeking to tie the .ICU extension exclusively to the .one.com brand. In this interesting approach to domain registration, .ICU will be available only to One.com customers and affiliates. Like all branded extensions, .ICU provides an identifiable namespace that lets customers know with confidence they’ve come to the right place.
There is no specific procedure related to the registration of a domain name.
.icu domain names are allocated on a "first come, first served" basis.