26.4. For the application of this Article, the Governing Council shall establish the necessary rules for standardizing the accounting and reporting of operations undertaken by the national central banks.

Article 27

Auditing

27.1. The accounts of the ECB and national central banks shall be audited by independent external auditors recommended by the Governing Council and approved by the Council. The auditors shall have full power to examine all books and accounts of the ECB and national central banks and obtain full information about their transactions.

27.2. The provisions of Article 188c of this Treaty shall only apply to an examination of the operational efficiency of the management of the ECB.

Article 28

Capital of the ECB

28.1. The capital of the ECB, which shall become operational upon its establishment, shall be ECU 5 000 million. The capital may be increased by such amounts as may be decided by the Governing Council acting by the qualified majority provided for in Article 10.3, within the limits and under the conditions set by the Council under the procedure laid down in Article 42.

28.2. The national central banks shall be the sole subscribers to and holders of the capital of the ECB. The subscription of capital shall be according to the key established in accordance with Article 29.

28.3. The Governing Council, acting by the qualified majority provided for in Article 10.3, shall determine the extent to which and the form in which the capital shall be paid up.

28.4. Subject to Article 28.5, the shares of the national central banks in the subscribed capital of the ECB may not be transferred, pledged or attached.

28.5. If the key referred to in Article 29 is adjusted, the national central banks shall transfer among themselves capital shares to the extent necessary to ensure that the distribution of capital shares corresponds to the adjusted key. The Governing Council shall determine the terms and conditions of such transfers.

Article 29

Key for capital subscription

29.1. When in accordance with the procedure referred to in Article 1091(1) of this Treaty the ESCB and the ECB have been established, the key for subscription of the

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