| 2 | 63/2/Euratom: Council Decision of 14 May 1962 determining the appointing authority for the Secretariat of the Councils | 16 Jan 1963 |
| 9 | 63/9/EEC: Council Decision of 14 May 1962 determining the appointing authority for the Secretariat of the Councils | 16 Jan 1963 |
| 20 | ECSC High Authority: Décision No 20-63 of 11 December 1963 amending Décision No 31-53 of 2 May 1953 on the publication of price lists and conditions of sale applied by undertakings in the steel industry | 11 Dec 1963 |
| 21 | ECSC High Authority: Décision No 21-63 of 11 December 1963 amending Décision No 37-54 of 29 July 1954 on the publication of price lists and conditions of sale applied by undertakings in the steel industry to the sale of special steels | 11 Dec 1963 |
| 22 | ECSC High Authority: Décision No 22-63 of 11 December 1963 amending Décision No 4-53 of 12 February 1953 on the publication of price lists and conditions of sale applied by undertakings in the coal and iron ore industries | 11 Dec 1963 |
| 23 | ECSC High Authority: Decision No 23-63 of 11 December 1963 requiring Community iron and steel undertakings to make returns to the High Authority of the transactions in which they align their quotations on those of undertakings outside the Community | 11 Dec 1963 |
| 24 | ECSC High Authority: Decision No 24-63 of 11 December 1963 requiring undertakings in the Community steel industry to make returns to the High Authority of transactions involving rebates or special prices for indirect export | 11 Dec 1963 |
| 27 | 63/27/Euratom: Council Decision of 18 June 1963 on the establishment of the 'Kernkraftwerk RWE-Bayernwerk GmbH' Joint Undertaking | 18 Jun 1963 |
| 106 | 63/106/EEC: Council Decision on the conclusion of the Agreement establishing an Association between the European Economic Community and Greece | 25 Sep 1961 |
| 115 | 63/115/EEC: Council Decision on the Agreement on methods of administrative co-operation for the implementation of Articles 7 and 8 of the Agreement establishing an Association between the European Economic Community and Greece | 18 Feb 1963 |
| 266 | Council Decision of 2 April 1963 laying down general principles for implementing a common vocational training policy (63/266/EEC) | 2 Apr 1963 |
| 326 | 63/326/EEC: Commission Decision of 17 May 1963 setting up a Joint Advisory Committee on Social Questions affecting Paid Agricultural Workers | 17 May 1963 |
| 491 | 63/46/Euratom, 63/491/EEC: Decision of 10 July 1963 specifying the institution responsible for payment of benefits provided for in the pensions scheme | 10 Jul 1963 |
| 573 | Council Decision of 14 October 1963 coordinating certain measures of commercial policy in respect of the Imperial Government of Iran | 14 Oct 1963 |
| 574 | Council Decision of 14 October 1963 on the conclusion of a Trade Agreement between the European Economic Community and the Imperial Government of Iran | 14 Oct 1963 |
| 641 | Commission Decision of 23 October 1963 on the abolition of aid granted in respect of the transport in France of certain fruit and vegetable products | 23 Oct 1963 |