The Immigration and Checkpoints Authority (ICA) is a government agency in Singapore responsible for managing the entry and exit of people and goods at the country's borders. It ensures that immigration laws are enforced and that security measures are in place to protect the nation. The ICA operates various checkpoints, including land, sea, and air entry points. In addition to border control, the ICA also handles the issuance of travel documents, such as passports and identity cards. The agency plays a crucial role in maintaining national security while facilitating legitimate travel and trade, contributing to Singapore's status as a global hub.