Retroactivity

20.1 Provisional measures and countervailing duties shall only be applied to products which enter for consumption after the time when the decision under paragraph 1 of Article 17 and paragraph 1 of Article 19, respectively, enters into force, subject to the exceptions set out in this Article.

20.2 Where a final determination of injury (but not of a threat thereof or of a material retardation of the establishment of an industry) is made or, in the case of a final determination of a threat of injury, where the effect of the subsidized imports would, in the absence of the provisional measures, have led to a determination of injury, countervailing duties may be levied retroactively for the period for which provisional measures, if any, have been applied.

20.3 If the definitive countervailing duty is higher than the amount guaranteed by the cash deposit or bond, the difference shall not be collected. If the definitive duty is less than the amount guaranteed by the cash deposit or bond, the excess amount shall be reimbursed or the bond released in an expeditious manner.

20.4 Except as provided in paragraph 2, where a determination of threat of injury or material retardation is made (but no injury has yet occurred) a definitive countervailing duty may be imposed only from the date of the determination of threat of injury or material retardation, and any cash deposit made during the period of the application of provisional measures shall be refunded and any bonds released in an expeditious manner.

20.5 Where a final determination is negative, any cash deposit made during the period of the application of provisional measures shall be refunded and any bonds released in an expeditious manner.

20.6 In critical circumstances where for the subsidized product in question the authorities find that injury which is difficult to repair is caused by massive imports in a relatively short period of a product benefiting from subsidies paid or bestowed inconsistently with the provisions of GATT 1994 and of this Agreement and where it is deemed necessary, in order to preclude the recurrence of such injury, to assess countervailing duties retroactively on those imports, the definitive countervailing duties may be assessed on imports which were entered for consumption not more than 90 days prior to the date of application of provisional measures.

Article 21

Duration and Review of Countervailing Duties and Undertakings

21.1 A countervailing duty shall remain in force only as long as and to the extent necessary to counteract subsidization which is causing injury.

21.2 The authorities shall review the need for the continued imposition of the duty, where warranted, on their own initiative or, provided that a reasonable period of time has elapsed since the imposition of the definitive countervailing duty, upon request by any interested party which submits positive information substantiating the need for a review. Interested parties shall have the right to request the authorities to examine whether the continued imposition of the duty is necessary to offset subsidization, whether the injury would be likely to continue or recur if the duty were removed or varied, or both. If, as a result of the review under this paragraph, the authorities determine that the countervailing duty is no longer warranted, it shall be terminated immediately.

21.3 Notwithstanding the provisions of paragraphs 1 and 2, any definitive countervailing duty shall be terminated on a date not later than five years from its imposition (or from the date of the most recent review under paragraph 2 if that review has covered both subsidization and injury, or under this paragraph), unless the authorities determine, in a review initiated before that date on their own initiative or upon a duly substantiated request made by or on behalf of the domestic industry within a reasonable period of time prior to that date, that the expiry of the duty would be likely to lead to continuation or recurrence of subsidization and injury. The duty may remain in force pending the outcome of such a review.

21.4 The provisions of Article 12 regarding evidence and procedure shall apply to any review carried out under this Article. Any such review shall be carried out expeditiously and shall normally be concluded within 12 months of the date of initiation of the review.