Despite the fact that agreements aim to allocate social protection to the country where the worker is most attached, sometimes unusual situations occur, where strict application of the rules of the agreement would lead to unusual or uneven results. That is why each agreement contains a provision allowing the authorities of both countries to grant derogations from the normal rules if both parties agree. A waiver could be granted, for example, if a U.S. citizen`s intervention abroad has been unexpectedly extended by a few months beyond the five-year limit, in accordance with the self-employed rule. In this case, the worker could benefit from continuous U.S. coverage for the additional period. You can also write to this address if you wish to propose the negotiation of new agreements with certain countries…