True. BUT devil’s advocate here...
In some cases it can be pretty confusing. For instance, at my shop we are authorized domestic RNPs, but only one intl airport is listed in the Ops Specs for authorization required RNPs outside the US. Add to that the fact that we don’t teach the ops specs, and don’t expect our pilots to be well-versed in them, you can run into issues, especially as new approaches are created and aren’t listed in our airport guides and NOTAMs as “Not Authorized.”
In Cuba the RNAV approaches are called RNP, even though they aren’t what we would call RNP in the States. They are standard GPS approaches without RNP containment requirements, and authorization is NOT required.
Long story short, it can get confusing, and some of the responsibility lies with the company if a crew mistakenly flies one of those foreign AR RNP approaches.