.DO represents the official domain extension or internet country code top-level domain (ccTLD) of Dominican Republic. Anyone can register a .do domain website provided that requirements are met. This domain extension was established for entities that have a connection with Dominican Republic. Its registry and operation is managed by Dominican Republic NetWorks Information Center.
Aside from Dominican Republic, DO also stands for other abbreviations. In medicine, it refers to doctor of osteopathy. DO is also the initials for district office (government), data only (computing), digital order (software), or diploma in ophthalmology.
There is no special process needed to register a .DO domain name, no special action is needed on your end.
Entities connected with Dominican Republic