When is it permissible to communicate with amateur stations in countries outside the areas administered by the Federal Communications Commission?
Only when the foreign country has a formal third-party agreement filed with the FCC
When the contact is with amateurs in any country except those whose administrations have notified the ITU that they object to such communications✓Respuesta correcta
Only when the contact is with amateurs licensed by a country which is a member of the United Nations, or by a territory possessed by such a country
Only when the contact is with amateurs licensed by a country which is a member of the International Amateur Radio Union, or by a territory possessed by such a country
Explicación
International amateur contacts are permitted by default; the exception is narrow and comes from the other administration. A country must have notified the ITU of an objection before its stations are off limits, and no third-party agreement, UN membership or IARU membership is required for ordinary two-way contacts.