1. Level 1 assets shall only include assets falling under one or more of the following categories and meeting in each case the eligibility criteria laid down herein:
(a) coins and banknotes;
(b) the following exposures to central banks:
(i) assets representing claims on or guaranteed by the European Central Bank (ECB) or a Member State's central bank;
(ii) assets representing claims on or guaranteed by central banks of third countries, provided that exposures to the central bank or its central government are assigned a credit assessment by a nominated external credit assessment institution (ECAI) which is at least credit quality step 1 in accordance with Article 114(2) of Regulation (EU) No 575/2013;
(iii) reserves held by the credit institution in a central bank referred to in point (i) or (ii) provided that the credit institution is permitted to withdraw such reserves at any time during stress periods and that the conditions for such withdrawal have been specified in an agreement bet
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