olemus
riiki või rahvusvahelist organisatsiooni esindava
(tavaliselt diplomaadipassiga) ametniku viisa
= a visa issued to people doing an official visit on behalf of their country or an international organization

näiteid
https://c8.staticflickr.com/4/3246/3101032287_b4584f61ae.jpg

http://www.passport-collector.com/wp-content/uploads/franklin_UNvisa.jpg

https://travel.state.gov/content/travel/en/us-visas/other-visa-categories/visa-employees-nato.html

https://en.wikipedia.org/wiki/Travel_visa#Official_visas