Trinidad and Tobago is divided into 15 regions that serve as the country's primary administrative divisions. These regions function as the sole level of sub-national governance, responsible for local administration, service delivery, and regional planning. The regional system replaced the earlier county-based structure to provide more effective management of municipal services, infrastructure development, and local governance across the twin-island nation. Each region operates through regional corporations that handle matters such as waste management, road maintenance, public health services, and community facilities. This administrative framework allows for decentralized governance while maintaining coordination with the national government on broader policy matters and resource allocation.