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provided that such measures do not restrict imports more than necessary to offset the increase in imports referred to in this subparagraph ; except in unusual circumstances, such measures shall not reduce imports below the level obtaining in the most recent representative period preceding the date on which the Member initiated action under paragraph 3. (b) The Organization shall determine, as soon as practicable, whether any such measure should be continued, discontinued or modified. It shall in any case be terminated as soon as the Organization determines that the negotiations are completed or discontinued. (c) It is recognized that the contractual relationships referred to in paragraph 3 involve reciprocal advantages, and therefore any Member which has a contractual right in respect of the product to which such action relates, and whose trade is materially affected by the action, may suspend the application to the trade of the applicant Member of substantially equivalent obligations or concessions under or pursuant to Chapter IV, provided that the Member concerned has consulted the Organization before taking such action and the Organization does not disapprove. B 5. In the case of any non-discriminatory measure affecting imports which would conflict with Chapter IV and which would apply to any product in respect of which the Member has assumed an obligation through negotiations with any other Member or Members pursuant to Chapter IV, the provisions of subparagraph (b) of paragraph 3 shall apply; Provided that before granting a release the Organization shall afford adequate opportunity for all Members which it determines to be materially affected to express their views. The provisions of paragraph 4 shall also be applicable in this case. C 6. If a Member in the interest of its economic development or reconstruction considers it desirable to adopt any non-discriminatory measure affecting imports which would conflict with Chapter IV, but which would not apply to any product in respect of which the Member has assumed an obligation through negotiations with any other Member or Members pursuant to Chapter IV, such Member shall notify the Organization and shall transmit to the Organization a written statement of the considerations in support of the adoption, for a specified period, of the proposed measure. 7. (a) On application by such Member the Organization shall concur in the proposed measure and grant the necessary release for a specified period if, having particular regard to the applicant Member's need for economic development or reconstruction, it is established that the measure