For the purposes of this Regulation:
1. "competent authorities" means the customs authorities of the Member States or any other authorities empowered by Member States to apply this Regulation;
2. "cash" means: (a) bearer-negotiable instruments including monetary instruments in bearer form such as travellers cheques, negotiable instruments (including cheques, promissory notes and money orders) that are either in bearer form, endorsed without restriction, made out to a fictitious payee, or otherwise in such form that title thereto passes upon delivery and incomplete instruments (including cheques, promissory notes and money orders) signed, but with the payee's name omitted; (b) currency (banknotes and coins that are in circulation as a medium of exchange).