Article 75 of Russia's Constitution gives the Bank of Russia the sole right to issue the ruble
Background
Article 75 of the Constitution of the Russian Federation establishes the special legal status of the Central Bank of the Russian Federation and gives it the exclusive right to issue currency.
The same article makes it the bank's main function to protect the ruble and ensure its stability.
The bank's status, goals, functions and powers are defined by Federal Law No. 86-FZ, dated 10 July 2002, on the Central Bank of the Russian Federation (Bank of Russia).
Article 3 of that law sets four goals: to protect the ruble and ensure its stability; to develop and strengthen the banking system of the Russian Federation; to ensure stability of and develop the national payment system; and to develop the financial market and ensure its stability.
The Bank of Russia is a special public legal institution and is not a body of state power, yet its authorised capital and other property are federal property.
It is accountable to the State Duma of the Federal Assembly of the Russian Federation.
Among its listed functions, it is the sole issuer of cash money, it approves the graphic sign of the ruble, it organises the digital ruble platform, and it sets and publishes the official exchange rates of foreign currencies against the ruble.
Its head office stands at 12 Neglinnaya Street, Moscow.
In plain words
State Duma State Duma of the Federal Assembly of the Russian Federation — It is the house of the Russian legislature to which the Bank of Russia is accountable.
Federal Assembly Federal Assembly of the Russian Federation — It is the national legislature of the Russian Federation, and the State Duma is one of its houses.