Elaborating about the control of marine pollution. Various types of wastes such as sewage, agricultural run-off, industrial wastes including radioactive waste, and oil spills being sent into the sea. Chemical pesticides find entry into the food chain. Harmful impact of oil spill. Discussing some of the positive features of CRZ Notification 2011, which included the inclusion of seawater as CRZ IV and the concept of hazard line. Ports and associated ship movement for business purposes cause marine pollution.