Kadar prehod nevarnih ali drugih odpadkov prek meja, ki je dobil pisno dovoljenje držav, ki jih to zadeva, ob upoštevanju določb te konvencije, ne more biti končan v skladu s pogodbenimi pogoji, država izvoznica zagotovi, da izvoznik odpelje zadevne odpadke nazaj v državo izvoznico, če ni mogoče skleniti drugega dogovora glede njihove odstranitve na okolju varen način v 90 dneh od dneva, ko je država uvoznica obvestila državo izvoznico in sekretariat, ali v takšnem časovnem obdobju, o katerem se dogovorijo zadevne države.
When a transboundary movement of hazardous wastes or other wastes to which the consent of the States concerned has been given, subject to the provisions of this Convention, cannot be completed in accordance with the terms of the contract, the State of export shall ensure that the wastes in question are taken back into the State of export, by the exporter, if alternative arrangements cannot be made for their disposal in an environmentally sound manner, within 90 days from the time that the importing State informed the State of export and the Secretariat, or such other period of time as the States concerned agree.