“Under the heading functionality test we suggest to include the following: Functionality test of key functions.”

From p. 2 of response by Norway to Basel Secretariat. 2010. ‘Draft Technical Guidelines on Transboundary Movement of E-Waste, in Particular Regarding the Distinction between Waste and Non-Waste (Version 22 September 2010)’. http://www.basel.int/Implementation/Ewaste/TechnicalGuidelines/DevelopmentofTGs/tabid/2377/Default.aspx

“Equipment may be suitable for reuse even if not fully functional in all its aspects. For example, a camera phone on which the camera does not work could still be suitable for reuse as a phone. This is referred to as the “key functionality” approach.”

From p. 9 of response by United States to Basel Secretariat. 2010. ‘Draft Technical Guidelines on Transboundary Movement of E-Waste, in Particular Regarding the Distinction between Waste and Non-Waste (Version 22 September 2010)’. http://www.basel.int/Implementation/Ewaste/TechnicalGuidelines/DevelopmentofTGs/tabid/2377/Default.aspx.