The amendments to the constitution were proposed by Ilham Aliyev. He left the polling station without giving any statements to the press.
They envisage establishing the positions of first vice-president and vice-president that will be appointed and dismissed by the head of state.
If the president resigns before his successor is chosen, the first vice-president will serve as acting president instead of the prime minister.
The presidential term is also planned to be increased from five to seven years, and the powers of the president may be broadened if people vote to allow him declare early presidential election and dissolve the parliament.
The amendments also envisage cancellation of all age restrictions.
The minimal age for president, which is now stands at 35 years, is proposed to be cancelled while citizens may also receive the right to be elected to the parliament not from 25, but from 18 years.
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