Abstract
The market price of used PET bottles is rising and the expense burden of producers became nearly zero in the containers and packing recycling law. The increase of the cities’ participation to the law has been stopped since 2010. Hearing research to all cities in Osaka Prefecture has been carried out to recognize the reason. In the law, cities have to do an expensive process that includes selecting PET bottles, pressing and packing them. And the price of used PET bottles is lower in the law than in the common market. By expanding EPR of the law (increasing the expense burden of the using-producers), the cities should be paid to their pre-recycling work.