Appendix V opens with the following text:

It is acknowledged that certain issues addressed in the present guidelines require further consideration and that relevant information should be obtained. The present appendix contains an overview of the issues and specific texts that were discussed by the Conference of the Parties at its twelfth meeting (COP-12) but on which no agreement was reached. Further work will be undertaken on the guidelines in accordance with COP decision BC-12/5.”

From p. 17 of Basel Secretariat. 2015. ‘Technical Guidelines on Transboundary Movements of Electrical and Electronic Waste and Used Electrical and Electronic Equipment, in Particular Regarding the Distinction between Waste and Non-Waste under the Basel Convention (Adopted by COP.12, May 2015)’. http://www.basel.int/Implementation/Publications/TechnicalGuidelines/tabid/2362/Default.aspx.