Which of the following is true about SCIF windows height requirements?

• A. They must be secured up to 18 feet above ground
• B. They must be secured up to 6 feet
• C. They must be securely closed only at night
• D. They have no height requirement

Answer: (A)

This item tests how window accessibility is handled to prevent exterior entry into a SCIF. Requiring windows to be secured up to 18 feet above ground creates a physical barrier that is generally out of reach for would-be intruders, making it much harder to access or tamper with the interior through the window. This continuous, high-security stance helps ensure that the exterior openings don’t become weak points in the facility’s protection.

The other options don’t fit because 6 feet remains reachable with ladders or by climbing, leaving a potential entry point; securing only at night means the window could be left vulnerable during daytime operations; and having no height requirement would remove a key protective control entirely.