16 CFR §303.32

Any upholstered product, mattress, or cushion which contains stuffing which has been previously used as stuffing in any other upholstered product, mattress, or cushion shall have securely attached thereto a substantial tag or label, at least 2 inches (5.08 cm) by 3 inches (7.62 cm) in size, and statements thereon conspicuously stamped or printed in the English language and in plain type not less than 1/3 inch (8.38 mm) high, indicating that the stuffing therein is composed in whole or in part of “reused stuffing,” “secondhand stuffing,” “previously used stuffing,” or “used stuffing.”