Which statement about blocking a window on the 3rd floor or below is true?

• A. On any floor
• B. Ground floor only
• C. 4th floor or above
• D. 3rd floor or below

Answer: (D)

Blocking a window is evaluated in terms of safety for escape and emergency access, and there is a floor-based rule. The standard allows blocking only on the 3rd floor or below, because those lower levels are the ones where some obstructions may be permissible without impairing critical egress or rescue operations. On the 4th floor and above, windows must remain unobstructed to ensure occupants can escape or be reached by rescuers. That’s why the statement “3rd floor or below” is the true one: it identifies the correct scope where window blocking is permissible. Blocking on any floor or specifically on the 4th floor or above would not meet the standard.