Paper and cardboard objects intended for food contact are generally regulated by EC Regulation 1935/2004 and Italian Presidential Decree 777 dd. Aug. 23, 1982 and subsequent amendments and additions, and specifically by Ministerial Decree 21/03/73 and subsequent amendments and additions. The latter lists the substances whose use is authorized in the manufacturing of paper and cardboard (positive lists of fibrous materials, fillers, auxiliary substances and technological processing aids) and also involves the verification of composition and purity requirements (for example, the limit on the PCB presence, absence of transfer of optical brighteners, etc.).