Upvote:1
The invitation exemption applies not only to permanent residents in Canada, but to those other countries, including the United States:
Getting a visa on the basis of an invitation approved by the General Inspectorate for Immigration β Romanian Ministry of Internal Affairs
Moreover, short-stay visas can be granted with the exemption from the IGI-MAI invitation procedure to the following categories of third-country nationals
-- nationals who hold a valid residence permit in states whose citizens are not required an entry visa to the Member States of the European Union or the European Economic Area, or to the Schengen Area Member States;