Classification of rubber waste: worn-out tyre air bags treated as scrap, directing finalisation of pending assessments. Worn-out rubber air bags discarded after use in tyre manufacture are classifiable as waste, parings and scrap of rubber under Sub heading No. 4004.00 because they are rubber goods definitely not usable as such owing to wear or other reasons; this applies whether cut or uncut and assessments are to be finalised accordingly.