3 U Rule – a rule illustrating the idea of recycling and promoting a life in unity with the environmental protection: Unnecessary things should not be bought, Use again, Utilize.

Recycling – one of the methods of environmental protection, which aims into minimizing of usage of natural resources and reducing amount of new waste.

Utylization – processing or removal of materials, which cannot be used in the way originally intended.

Waste – all objects and solid substances, also liquid substances other than sludge, which are by-products of industrial activity, economic activity or human living and unuseful in the place or time, in which they were produced.

Waste transfer card – a document confirming the act of transferring waste to the other holder together with the responsibility for received waste and informing about the type and amount of the waste.