ProRail holds various environmental permits for the management and operation of the yards along the harbour rail network (Havenspoor Line). These permits outline the requirements and obligations that ProRail must meet to ensure safety on the yards (compliance and safety). In recent years, the competent authorities, such as the Rijnmond Environmental Protection Agency (DCMR) and the Rotterdam-Rijnmond Safety Region (VR-RR), have identified instances where ProRail did not fully comply with the permit requirements. Since then, ProRail has been working on various projects to enhance risk management and restore the infrastructure.