The Transportation Security Administration (TSA) in 2004 implemented a rule for transporting urns as carry-on luggage, requiring that urns must pass successfully through the x-ray machine. According to TSA, many urns generate an opaque image and will not be permitted through airport security, and urns will not be opened by security personnel.
TSA recommends that consumers purchase a temporary container made of wood, plastic or non-lead lined ceramic for transporting their loved one's remains.