# Article 4 — Reply to a request for cooperation or exchange of information **Commission Implementing Regulation (EU) 2017/980 · binding · OJ L 148, 10.6.2017 · dated 7 Jun 2017 [in force]** *In force · Commission Implementing Regulation (EU) 2017/980, OJ L 148, 10.6.2017 · Checked against EUR-Lex on 26 Oct 2026 · [Official source](https://eur-lex.europa.eu/eli/reg_impl/2017/980/oj/eng)* 1. The requested authority shall respond to a request for cooperation or exchange of information in paper form or by electronic means, using the form set out in Annex III. Unless otherwise specified by the requesting authority, the reply shall be addressed to the contact point of the requesting authority. 1. The requested authority shall execute requests for cooperation or exchange of information in a manner which ensures any necessary regulatory action shall proceed without undue delay, taking into account the complexity of the request and the necessity to involve third parties or another authority.