# Commission Implementing Regulation (EU) 2017/988 of 6 June 2017 laying down implementing technical standards with regard to standard forms, templates and procedures for cooperation arrangements in respect of a trading venue whose operations are of substantial importance in a host Member State (Text with EEA relevance), Article 4: Responding to a request for cooperation

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

1. The Requested Authority shall take all appropriate steps to provide the cooperation requested without delay. The Requested Authority shall ensure that any necessary action proceeds expediently, while taking into account the complexity of the request and the necessity, where appropriate, to involve third parties or another Authority.
2. The Requested Authority may decline to act on a request for cooperation where it considers that such action would involve taking a measure contrary to law. In case the Requested Authority refuses to act, it shall notify the Requesting Authority using the template provided in Annex III to Implementing Regulation (EU) 2017/988, including a full description of the circumstances justifying its decision.

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Source: https://www.legislation.gov.uk/eur/2017/988/annex/I/article/4 (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-988/annex-I/article-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.