Subject to the following provisions of this Article and the provisions of Articles 6 to 8 of this Convention, where a person is gainfully occupied, his liability to be insured shall be determined under the legislation of the Party in whose territory he is so occupied.

Where a person is employed in the territory of both Parties for the same period, his liability to be insured shall be determined only under the legislation of the Party in whose territory he is ordinarily resident.

Where a person is self-employed in the territory of both Parties for the same period, his liability to be insured shall be determined under the legislation of the Party in whose territory he is ordinarily resident.

Where a person is employed in the territory of one Party and self-employed in the territory of the other Party for the same period, his liability to be insured shall be determined only under the legislation of the former Party.

For the purposes of the provisions of paragraphs (3) and (4) of this Article, “liability to be insured” shall not include liability to pay a Class 4 contribution under the legislation of the United Kingdom.