This agreement enters into force on the same day as the exchange of diplomatic letters. When a benefit is paid by the French social security authority as an agent of the United Kingdom`s social security authority under Article 32, Social Security (Reciprocal Agreement with France) Act 1980, the result of the calculation of the weekly average per child of Jersey family allowances, which are paid to all jersey family members entitled to family allowances during the year concerned. For each family, this average is multiplied by the number of eligible children remaining in the family and by the number of weeks the worker spent in Jersey during the year under review. 3. Where the right to a pension is justified in accordance with paragraph 2 of this article, the social security authority of each party calculates – as a general rule, the existence of an existing agreement can contribute to the promotion of commercial and economic activities between France and China. 2. The provisions of paragraph 1 of this section do not apply to two benefits of the same nature paid pursuant to Section 18 or Section 3 of this part of this agreement. 1. Where a national of a contracting party is employed in the territory of one party and is subject to the legislation of the other party in accordance with Article 4, paragraph 2, paragraph 2, or Article 9, paragraph 2, it must, for the purposes of entitlement to cash benefits in the event of illness, maternity, work-related accident or illness, treat under this legislation (3) Any period of insurance or equivalent period carried out by a national of a contracting party before the effective date of the agreement, is taken into account when determining the right to benefits in accordance with the provisions of the agreement. 2. Where a national of a contracting party is employed on board a ship or aircraft of one of the contracting parties and the legislation of that party applies in accordance with Article 5, paragraph 2, he is treated, while he is in the territory of the other party, for an illness that took place during such employment. as if it were in the territory of the old part.