In the past 25 years, plastic products have gained universal use not only in food, clothing and shelter, but also in the transportation, construction, medical and leisure industries. Whereas previously synthetic plastics were developed as durable substitute products, increasing concern for the global environment and solid waste management has resulted in an urgent demand for biodegradable plastics.The main topics of the Third International Scientific Workshop were as follows:1. Biodegradation of polymers and plastics2. Environmental degradation of plastics3. Synthesis and properties of new biodegradable plastic materials4. Biodegradation and morphologies of polymer blends5. Development of biodegradation test methods6. Governmental policy, regulation and standards.