# European Central Bank Regulation (EC) No 2157/1999 of 23 September 1999 on the powers of the European Central Bank to impose sanctions (ECB/1999/4), Article 4: Assistance by the authorities of the Member States

Extent: E+W+S+N.I.

1. The assistance of the authorities of the Member States may be requested by the ECB or the competent national central bank, as the case may be, as a precautionary measure.
2. No authority of a Member State can act as a substitute for the ECB or the competent national central bank, as the case may be, in the assessment of the need for the investigations.

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Source: https://www.legislation.gov.uk/eur/1999/2157/article/4 (the official version)
Page: https://openlegislation.uk/eu-regulation-1999-2157/article-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.