AP30B – 161 – MOD 6.31bis The regulatory time-limit in § 6.31 for bringing into use of an assignment to a space station of a satellite network 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; – 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-limit. In order to take advantage of this extension, the administration shall have, within one month of the launch failure or one month after 17 February 2012, 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 § 6.31: – date of launch failure; – due diligence information as required in Resolution 49 (Rev.WRC-15), if this Resolution applies to the satellite network in which the space station is to operate, for the assignments 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, for a satellite network or satellite system to which Resolution 49 (Rev.WRC-15) applies, the administration has not provided to the Bureau updated Resolution 49 (Rev.WRC-15) information for the new satellite under procurement within one year of the request for extension, the related frequency assignments shall lapse. (WRC-15) MOD 6.33 When: i) an assignment is no longer required; or ii) an assignment recorded in the List and brought into use has been suspended for a period exceeding the suspension period resulting from the application of § 8.17 below and ending after the expiry date specified in § 6.31; or iii) an assignment recorded in the List has not been brought into use within the eight-year period following the receipt by the Bureau of the relevant complete information under § 6.1 (or within the extended period in the event of an extension under § 6.31bis), with the exception of assignments submitted by new Member States where § 6.35 and 7.7 apply,