A substance or object resulting from a production process the primary aim of which is not the production of that substance or object is considered not to be waste, but to be a byproduct if the following conditions are met: (i) further use of the substance or object is certain; (ii) the substance or object can be used directly without any further processing other than normal industrial practice; (iii) the substance or object is produced as an integral part of a production process; and (iv) further use is lawful, i.e., the substance or object fulfils all relevant product, environmental and health protection requirements for the specific use and will not lead to overall adverse environmental or human health impacts.

Related keywords
Waste hierarchy
Waste management

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