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History of Illegal Dumping of FRP Wrecked Vessels In 1994, the illegal dumping of FRP (fiber-reinforced plastic) wrecked vessels became a serious problem along Japan's coastlines and in its ports. A nationwide survey confirmed 1,573 wrecked vessels, 40% of which were FRP boats. FRP does not biodegrade, raising concerns about landscape degradation and impacts on fishing grounds. In response, the Japan Coast Guard strengthened enforcement starting in 1996, introducing warning stickers and penalties. During the 2000s, proper disposal of FRP vessels was promoted, and in 2005, the Japan Marine Industries Association (JBIA) launched the "FRP Vessel Recycling System." Recycling methods, such as converting them into cement raw materials, advanced. However, illegal dumping persisted due to high disposal costs, with 884 illegally dumped vessels confirmed in 2003. Entering the 2020s, the FRP vessel recycling system continued operation, with regular collection implemented in each region.
Recycling technology using cement kilns was also established, and guidance on proper disposal for vessel owners is being promoted.