English to Spanish Bus/Financial Finance (general) Article

This is an article on the current economic situation. The direct translation "vehículos oficiales de la eurozona" would be misleading, since "vehículo oficial" has other meaning. ¿Alguna propuesta? Este es el contexto:

Another option to increase the resources of the ESM would be to have it receive a banking license and thus be able to repo its purchases of government bonds with the ECB, so as to leverage the central bank’s balance sheet. The idea of creating—via the ECB—more leverage for **official EZ vehicles** had been originally considered for the EFSF; but since the latter has no capital of its own and its resources already come from leverage

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