Which of the following does not require flame resistant treatment?

• A. Curtains in a theater
• B. Ladders
• C. Upholstered furniture
• D. Art work in a museum

Answer: (D)

Flame retardant treatment targets materials that can fuel a fire and spread flames in occupied spaces. Curtains in a theater and upholstered furniture are fabric items that can ignite and feed a fire quickly, so codes require them to be flame resistant to slow ignition and give people time to evacuate. Art work in a museum—paintings, sculptures, and similar pieces—are not fabric-based and are generally not required to receive flame retardant treatment; fire safety for them relies on other measures like containment, detection, and suppression to protect both people and the art. Ladders are not fabric items either, so they aren’t typically treated for flame resistance as a standard rule, but the key point here is that artworks aren’t subject to this flame-retardant requirement.