Article 1 
1. The conclusion by the Commission, on behalf of the European Atomic Energy Community, of the Agreement between the Government of the United Kingdom of Great Britain and Northern Ireland and the European Atomic Energy Community for Cooperation on the Safe and Peaceful Uses of Nuclear Energy is hereby approved, subject to the conditions set out in Article 2. 2. The conclusion by the Commission, on behalf of the European Atomic Energy Community, of the Trade and Cooperation Agreement between the European Union and the European Atomic Energy Community, of the one part, and the United Kingdom of Great Britain and Northern Ireland, of the other part, including its provisions on provisional application, is hereby approved as regards matters falling under the Euratom Treaty, subject to the conditions set out in Article 3. 3. The text of the Agreement referred to in paragraph 1 is attached to this Decision. The text of the Agreement referred to in paragraph 2 is attached to Council Decision (EU) 2020/2252 ( 1 ) .
Article 2 
1. Prior to its conclusion and subject to reciprocity, the Agreement referred to in Article 1(1) shall be signed and shall be applied on a provisional basis as from 1 January 2021, pending the completion of the procedures necessary for its entry into force and of the procedures referred to in paragraph 2. 2. The versions of the Agreement referred to in Article 1(1) in the Bulgarian, Croatian, Czech, Danish, Dutch, English, Estonian, Finnish, French, German, Greek, Hungarian, Irish, Italian, Latvian, Lithuanian, Maltese, Polish, Portuguese, Romanian, Slovak, Slovenian, Spanish and Swedish languages shall be subject to final legal-linguistic revision. The language versions resulting from the legal-linguistic revision referred to in the first subparagraph shall be established as authentic and definitive by exchange of diplomatic notes with the United Kingdom. The authentic and definitive texts referred to in the second subparagraph shall replace ab initio the signed versions of the Agreement referred to in Article 1(1). 3. The provisional application referred to in paragraph 1 shall be agreed by means of an exchange of letters between the Community and the Government of the United Kingdom. The texts of those letters are attached to this Decision.
Article 3 
1. Prior to its conclusion and subject to reciprocity, the Agreement referred to in Article 1(2), as regards matters falling under the Euratom Treaty, shall be signed and shall be applied on a provisional basis as from 1 January 2021, pending the completion of the procedures necessary for its entry into force. 2. The notification to the United Kingdom in accordance with Article 12(2) of Decision (EU) 2020/2252 regarding the completion of the Union’s internal requirements and procedures necessary for provisional application shall be given by the President of the Council provided that, prior to the date referred to in paragraph 1, the United Kingdom has notified the Union that its internal requirements and procedures necessary for provisional application have been completed. 3. The versions of the Agreement referred to in Article 1(2) in the Bulgarian, Croatian, Czech, Danish, Dutch, English, Estonian, Finnish, French, German, Greek, Hungarian, Irish, Italian, Latvian, Lithuanian, Maltese, Polish, Portuguese, Romanian, Slovak, Slovenian, Spanish and Swedish languages shall be subject to final legal-linguistic revision. The language versions resulting from the legal-linguistic revision referred to in the first subparagraph shall be established as authentic and definitive by exchange of diplomatic notes with the United Kingdom. The authentic and definitive texts referred to in the second subparagraph shall replace ab initio the signed versions of the Agreement referred to in Article 1(2).
Article 4 
This Decision shall enter into force on the date of its adoption.