Subject to paragraphs (2) to (9) and Articles 8 to 12, where a person is employed, liability for contributions for him shall be determined under the legislation of the Party in whose territory he is so employed. Where a person is subject only to the legislation of the United Kingdom in accordance with this paragraph, that legislation shall apply to him as if he were ordinarily resident in the United Kingdom.

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

Where a person is ordinarily resident in the territory of one Party and is self-employed in the territory of the other Party, or in the territory of both Parties, liability for contributions for him shall be determined only under the legislation of the Party in whose territory he ordinarily resides and that legislation shall apply to him as if he were self-employed in the territory of that Party.

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, liability for contributions for him shall be determined only under the legislation of the former Party.

No provision of this Article shall affect a person's liability to pay a Class 4 contribution under the legislation of Great Britain, Northern Ireland or the Isle of Man, or to pay contributions arising from employment which is insurable (occupational injuries) employment only, under the legislation of Ireland.

Where a person is not gainfully employed, any liability for contributions shall be determined under the legislation of Guernsey if he is ordinarily resident in Guernsey, or under the legislation of Jersey if he is ordinarily resident in Jersey.

Where, but for this paragraph, a person would be entitled to pay contributions voluntarily under the legislation of both Parties for the same period, he shall be entitled to pay contributions only under the legislation of one Party according to his choice.

Where under Articles 8, 9(a) or (b), or 10(2), a person is employed in the territory of one Party while remaining liable for contributions under the legislation of the other Party, the legislation of the former Party shall not apply to him and he shall not be liable, nor entitled, to pay contributions under the legislation of the former Party.

A person who is entitled to receive sickness benefit, maternity allowance, invalidity benefit or injury benefit for any period under the legislation of Ireland while he is in Jersey or Guernsey, shall be excepted from liability to pay a contribution in respect of that period, other than as an employed or self-employed person, under the legislation of Jersey or Guernsey.

Subject to paragraphs (2) to (4), where a person is employed on board any ship or vessel of one Party, the legislation of that Party concerning liability for contributions shall apply to him as if any conditions relating to residence were satisfied in his case, provided that he is ordinarily resident in the territory of either Party.

Where a person who is insured under the legislation of one Party and employed either in the territory of that Party or on board any ship or vessel of that Party, is sent by his employer in the territory of that Party to work on board a ship or vessel of the other Party, the legislation of the former Party concerning liability for contributions shall continue to apply to him provided that his employment on board the ship or vessel of the latter Party is not expected to last for a period of more than one year. Where his employment on board the ship or vessel of the latter Party continues after such period of one year, the legislation of the former Party shall continue to apply to him for any further period of not more than one year, provided that the competent authority of the latter Party agrees thereto before the end of the first period of one year.

Where a person who is not normally employed at sea is employed other than as a member of the crew, on board a ship or vessel of one Party, in the territorial waters of, or at a port of, the other Party, the legislation concerning liability for contributions of the Party in whose territory he is ordinarily resident shall apply to him.

Where a person who is ordinarily resident in the territory of one Party and employed on board any ship or vessel of the other Party is paid remuneration in respect of that employment by a person who is ordinarily resident in, or by an undertaking having a place of business in, the territory of the former Party, the legislation of the former Party concerning liability for contributions shall apply to him as if the ship or vessel were a ship or vessel of the former Party, and the person or undertaking by whom the remuneration is paid shall be treated as the employer for the purpose of such legislation.

This Convention shall not apply to persons who are exempted from the social security law of the Party in whose territory they are present or resident by virtue of the Vienna Conventions on Diplomatic or Consular Relations.

Subject to paragraph (1), where any person who is in the Government Service of one Party or in the service of any public corporation of that Party is employed in the territory of the other Party, the legislation of the former Party concerning liability for contributions shall apply to him as if he were employed in its territory.

Subject to paragraphs (1) and (2), where a person is employed in a diplomatic mission or consular post of one Party in the territory of the other Party, or in the private service of an official of such a mission or post, the legislation of the latter Party concerning liability for contributions shall apply to him as if he were employed in its territory, unless within three months of the entry into force of this Convention, or within three months of the beginning of the employment in the territory of the latter Party, whichever is later, he chooses to be insured under the legislation of the former Party, provided that he was so insured within the period of one month immediately before the commencement of the employment at that mission or post. Where, under this paragraph, a person has the right to choose to be insured under the legislation of the former Party but does not choose to do so, he shall not be liable, nor entitled, to pay contributions under the legislation of the former Party.