Central Executive Committee of the Soviet Union in the context of "Kazakh Soviet Socialist Republic"

The Declaration and Treaty on the Formation of the Union of Soviet Socialist Republics (Russian: Декларация и договор об образовании Союза Советских Социалистических Республик) officially created the Union of Soviet Socialist Republics (USSR), commonly known as the Soviet Union. It de jure legalised a political union of several Soviet republics that had existed since 1919 and created a new federal government whose key functions were centralised in Moscow. Its legislative branch consisted of the Congress of Soviets of the Soviet Union and the Central Executive Committee of the Soviet Union (TsIK), while the Council of People's Commissars composed the executive.

The Treaty, along with the Declaration of the Creation of the USSR was approved on 30 December 1922 by a conference of delegations from the Russian SFSR, the Transcaucasian SFSR, the Ukrainian SSR and the Byelorussian SSR. The Treaty and the Declaration were confirmed by the First All-Union Congress of Soviets and signed by heads of delegations – Mikhail Kalinin, Mikhail Tskhakaya, and Grigory Petrovsky, Alexander Chervyakov respectively on December 30, 1922. The treaty provided flexibility to admit new members. Therefore, by 1940 the Soviet Union grew from the founding four (or six, depending on whether 1922 or 1940 definitions are applied) republics to 16 republics.

The Order of Lenin (Russian: Орден Ленина, romanized: Orden Lenina, pronounced [ˈordʲɪn ˈlʲenʲɪnə]) was an award named after Vladimir Lenin, the leader of the October Revolution. It was established by the Central Executive Committee on 6 April 1930. The order was the highest civilian decoration bestowed by the Soviet Union. The order was awarded to:

• Civilians for outstanding services rendered to the State
• Members of the armed forces for exemplary service
• Those who promoted friendship and cooperation between people and in strengthening peace
• Those with meritorious services to the Soviet state and society

From 1944 to 1957, before the institution of specific length of service medals, the Order of Lenin was also used to reward 25 years of conspicuous military service. Those who were awarded the titles "Hero of the Soviet Union" and "Hero of Socialist Labour" were also given the order as part of the award. It was also bestowed on cities, companies, factories, regions, military units, and ships. Various educational institutions and military units who received the said Order applied the full name of the order into their official titles.

The Constitution of the Soviet Union recognised the Presidium of the Supreme Soviet (between 1938 and 1989) and the earlier Central Executive Committee (CEC) of the Congress of Soviets (between 1922 and 1938) as the highest organs of state authority in the Union of Soviet Socialist Republics (USSR) between legislative sessions. Under the 1924, 1936 and 1977 Soviet Constitutions these bodies served as the collective head of state of the Soviet Union. The chairman of these bodies personally performed the largely ceremonial functions assigned to a single head of state but was provided little real power by the constitution.

The Soviet Union was established in 1922. However, the country's first constitution was only adopted in 1924. Before that time, the 1918 Constitution of the Russian Soviet Federative Socialist Republic functioned as the constitution of the USSR. According to the 1918 Constitution, the All-Russian Central Executive Committee (CEC), whose chairman was head of state, had the power to determine what matters of income and taxation would go to the state budget and what would go to the local soviets. The CEC could also limit taxes. In periods between convocations of the Congress of Soviets the CEC held supreme power. In between sessions of the Congress of Soviets the CEC was responsible for all the affairs of the Congress of Soviets. The CEC and the Congress of Soviets was replaced by the Presidium and the Supreme Soviet respectively by several amendments to the 1936 Constitution in 1938.

The All-Union Congress of Soviets (Russian: Всесоюзный съезд Советов, romanized: Vsesoyuznyy s"yezd Sovetov) was formally the supreme governing body of the Soviet Union from its formation (30 December 1922) until the adoption of its second constitution in 1936. The Congress of Soviets determined the general direction of all public bodies and elected the Central Executive Committee of the Soviet Union: a body which was accountable to, and held the powers of the Congress when the Congress was not in session. With the 1936 Constitution, the All-Union Congress was replaced by the Supreme Soviet.

The First All-Union Congress of Soviets (Russian: I Всесоюзный съезд Советов, romanized: 1 Vsesoyuznyy s"ezd Sovetov) was a congress of representatives of Soviets of workers, peasants and Red Army deputies, held on December 30, 1922 in Moscow. The congress was attended by 2215 delegates (1727 from the Russian Socialist Federative Soviet Republic, 364 from the Ukrainian Socialist Soviet Republic, 91 from the Transcaucasian Socialist Federative Soviet Republic, 33 from the Belarusian Socialist Soviet Republic). Kalinin was elected chairman of the congress, but Vladimir Lenin, who was not present at the congress due to illness, was elected honorary chairman of the congress. More than 90% of the delegates were members of the Russian Communist Party, 2 left-wing social federalists of the Caucasus, 1 anarchist and 1 member of the Jewish Social Democratic Party.

The congress approved the Declaration and the Treaty on the Formation of a New State – the Union of Soviet Socialist Republics. 4 states have united in the Soviet Union: Russian Socialist Federative Soviet Republic, Ukrainian Socialist Soviet Republic, Belarusian Socialist Soviet Republic, Transcaucasian Socialist Federative Soviet Republic. In addition, the congress elected the Central Executive Committee of the Soviet Union.