Which of the following refers to the main administrative location of the compact?

The term that refers to the main administrative location of the compact is accurately identified as the principal offices of the compact. This is where the oversight and operational activities of the compact occur, which are essential for coordinating functions and ensuring compliance with shared standards across states participating in the compact.

Principal offices serve as the central hub for managing the compact's activities, which may include regulatory oversight, administration of licensure processes, and coordination among member states. This location is critical for maintaining consistent communication and operational efficiency, which are necessary for the successful implementation and functioning of the compact.

In contrast, delegated offices, regulatory agencies, and local government facilities do not serve as the central administrative location of the compact. Delegated offices might handle specific tasks or functions but are not the primary site for overall governance. Regulatory agencies pertain to state-level oversight but do not represent the compact as a whole. Local government facilities typically operate at a municipal level and do not involve the interstate functions that a compact entails.