California IDEX Practice Exam 2026 – Comprehensive Test Prep

In the context of occupancy classifications for building designs, a training room of approximately 1200 square feet falls under the category that is typically designated for assembly purposes. The correct classification in this scenario is A-3, which encompasses spaces used for assembly purposes such as training rooms, lecture halls, and similar functions.

The A-3 classification is suitable because it accommodates spaces where people gather for a common purpose. The size and function of the training room, where individuals will come together to learn and participate in activities, align well with the definitions set by building codes for assembly spaces that do not involve activities such as performance or worship.

Other classifications mentioned, such as A-1, A-2, and A-4, are specific to different types of assemblies that have distinct purposes. A-1 is for theaters and concert halls, A-2 is for dining and drinking establishments, and A-4 is for arenas intended for sports events or similar activities. These spaces have different usage criteria and requirements compared to a training room, resulting in the A-3 classification being the most appropriate option in this case.