(108)Similarly, the bonds issued by the Spanish Asset Management Company are of particular importance to the Spanish banking recovery and are a transitional measure supported by the Commission and the ECB, as an integral part in the restructuring of the Spanish banking system. Since their issuance is provided for in the Memorandum of Understanding on Financial Sector Policy Conditionality signed by the Commission and the Spanish Authorities on 23 July 2012, and the transfer of assets requires approval by the Commission as a State aid measure introduced to remove impaired assets from the balance sheets of certain credit institutions, and to the extent they are guaranteed by the Spanish government and are eligible collateral with monetary authorities. The Commission should address specific grandfathering mechanisms of transferable assets issued or guaranteed by entities with Union State aid approval as part of the delegated act which it adopts pursuant to this Regulation to specify the liquidity coverage requirement. In that regard the Commission should take into account the fact that institutions calculating the liquidity coverage requirements in accordance with this Regulation should be permitted to include Spanish Asset Management Company senior bonds as assets of extremely high liquidity and credit quality until at least December 2023.