1.In order to asses the degrees of incapacity, to establish a right to any benefit, or to determine the amount of such benefit in the cases referred to in Article 61 (5) and (6) of the Regulation, a claimant shall supply the competent institution of the Member State to whose legislation he was subject at the time when the accident at work was sustained or the occupational disease was first diagnosed, with all information on previous or subsequent accidents at work sustained or occupational diseases contracted by him when he was subject to the legislation of any other Member State, whatever the degree of incapacity caused by those previous or subsequent cases.
2.In accordance with the legislation which it administers in respect of the acquisition of the right to benefit, and the determination of the amount of benefit, the competent institution shall take into account the degree of incapacity caused by those previous or subsequent cases.
3.The competent institution may apply to any other institution which was previously or subsequently competent to obtain any information which it considers necessary.
When a previous or a subsequent incapacity for work was caused by an accident sustained while the person concerned was subject to the legislation of a Member State which makes no distinction as to the origin of the incapacity for work, the competent institution in respect of a previous or subsequent incapacity for work or the body designated by the competent authority of the Member State concerned shall, at the request of the competent institution of another Member State, supply information on the degree of the previous or subsequent incapacity for work and, as far as possible, any information which would make it possible to determine whether the incapacity was the result of an accident at work within the meaning of the legislation administered by the institution of the second Member State. Where such is the case, the provisions of paragraph 2 shall apply by analogy.