Answer:
Level IV
Explanation:
Security levels of United States Federal buildings are used to allocate safety measures such as glazing to reduce injury from broken glass, distance for traffick to the building, and prevention of building collapse.
There are levels one to five.
Level IV facilities has more than 450 employees, 80,000 to 250,000 square feet of office space, and a high volume of public contact.
Usually used by law enforcement or ntelligence agencies such as ATF, FBI, DEA, and Federal courts