The Time-Space Administration Bureau (TSAB) is a fictional organization from the Magical Girl Lyrical Nanoha series. It is responsible for maintaining the balance of time and space across different dimensions. The bureau oversees the use of magical artifacts and ensures that their powers do not disrupt the fabric of reality. TSAB employs various agents, known as Enforcers and Chrono Harlaown, who are tasked with investigating and resolving incidents involving time and space manipulation. The organization also engages in research and development of magical technology to enhance its capabilities in safeguarding the multiverse.