Central Committee of the 20th Congress of the Communist Party of the Soviet Union
The Central Committee of the 20th Congress of the Communist Party of the Soviet Union was in session from 1956 until 1961. Its 133 Members and 122 Candidate members were elected at the 20th Party Congress. It elected, at its 1st Plenary Session, the 20th Presidium, the 20th Secretariat and the 20th Party Control Committee of the Communist Party of the Soviet Union.
Plenums
The Central Committee was not a permanent institution. It convened plenary sessions. 19 CC plenary sessions were held between the 20th Congress and the 22nd Congress. When the CC was not in session, decision-making power was vested in the internal bodies of the CC itself; that is, the Politburo and the Secretariat. None of these bodies were permanent either; typically they convened several times a month.| Plenum | Date | Length |
| 1st Plenary Session | 27 February 1956 | 1 day |
| 2nd Plenary Session | 20–24 December 1956 | 5 days |
| 3rd Plenary Session | 13–14 February 1957 | 2 days |
| 4th Plenary Session | 22–29 June 1957 | 8 days |
| 5th Plenary Session | 28–29 October 1957 | 2 days |
| 6th Plenary Session | 16–17 December 1957 | 2 days |
| 7th Plenary Session | 25–26 February 1958 | 2 days |
| 8th Plenary Session | 6–7 May 1958 | 2 days |
| 9th Plenary Session | 17–18 June 1958 | 2 days |
| 10th Plenary Session | 5 September 1958 | 1 day |
| 11th Plenary Session | 12 November 1958 | 1 day |
| 12th Plenary Session | 15–19 December 1958 | 5 days |
| 13th Plenary Session | 24–29 June 1959 | 6 days |
| 14th Plenary Session | 22–25 December 1959 | 4 days |
| 15th Plenary Session | 4 May 1960 | 1 day |
| 16th Plenary Session | 13–16 July 1960 | 4 days |
| 17th Plenary Session | 10–18 January 1961 | 9 days |
| 18th Plenary Session | 19 June 1961 | 1 day |
| 19th Plenary Session | 14 October 1961 | 1 day |