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Candidates had to be nominated by the All-Union Communist Party (Bolsheviks) (CPSU) or by a public organisation. However, all public organisations were controlled by the party and were subservient to a 1931 law that required them to accept party rule. The CPSU itself remained the only legal party in the country.
Voters could in theory vote against the CPSU candidate, but could only do so by using polling booths, whereas votes for the party could be cast simply by submitting a blank ballot. Turnout was required to be over 50% for the election to be valid.
Candidates
CPSU candidates accounted for around three quarters of the nominees, whilst many of the others were members of Komsomol.