AP30A – 140 – MOD 4.1.3bis The regulatory time-limit for bringing into use an assignment in the List may be extended once by not more than three years due to launch failure in the following cases: – the destruction of the satellite intended to bring the assignment into use; or – the destruction of the satellite launched to replace an already operating satellite which is intended to be relocated to bring another assignment into use; or – the satellite is launched, but fails to reach its assigned orbital location. For this extension to be granted, the launch failure must have occurred at least five years after the date of receipt of the complete Appendix 4 data. In no case shall the period of the extension of the regulatory time-limit exceed the difference in time between the three-year period and the period remaining from the date of the launch failure to the end of the regulatory time-limit8. In order to take advantage of this extension, the administration shall have, within one month of the launch failure or one month after 5 July 2003, whichever comes later, notified the Bureau in writing of such failure, and shall also provide the following information to the Bureau before the end of the regulatory time-limit of § 4.1.3: – date of launch failure; – due diligence information as required in Resolution 49 (Rev.WRC-15) for the assignment with respect to the satellite that suffered the launch failure, if that information has not already been provided. If, 11 months after the request for extension, the administration has not provided to the Bureau updated Resolution 49 (Rev.WRC-15) information, the Bureau shall promptly send a reminder to the notifying administration. If, within one year of the request for extension, the administration has not provided to the Bureau updated Resolution 49 (Rev.WRC-15) information for the new satellite under procurement, the related frequency assignments shall lapse. (WRC-15) MOD 4.1.9 Comments from administrations identified in the publication referred to under § 4.1.5 above shall be sent to the Bureau and to the administration proposing the modification. (WRC-15) MOD 4.1.10 An administration that has not notified its agreement either to the administration seeking agreement or to the Bureau within a period of four months following the date of the BR IFIC referred to in § 4.1.5 shall be deemed to have not agreed to the proposed assignment unless the provisions of § 4.1.10a to 4.1.10d and § 4.1.21 are applied. This time-limit may be extended: – for an administration that has requested additional information under § 4.1.8, by up to three months, or – for an administration that has requested the assistance of the Bureau under § 4.1.21, by up to three months following the date at which the Bureau communicated the result of its action. (WRC-15)