For businesses that want to show customer appreciation, .GRATIS is a perfect TLD to use. .GRATIS creates a new, relevant domain namespace for the purpose of offering perks gratis—or for free—to customers, members, employees, and more. Use as an extension to a current webpage in order to promote freebies and special events or coupons. Alternatively, the .GRATIS extension is perfect for open-source software and other free internet services.
There is no specific procedure related to the registration of a domain name.
.gratis domain names are allocated on a "first come, first served" basis.