Mostafa Mohammad-Najjar said on Sunday that 1,040 executive teams will be in charge of monitoring the polls in the June 14 election.
He added that the Guardian Council would announce the names of the approved hopefuls to the Interior Ministry on Tuesday.
Once the final list is submitted to the Interior Ministry, it has a two-day deadline to announce the names of candidates to the public, Mohammad-Najjar explained.
The Interior Minister stated that during that period, the Interior Ministry will be holding a meeting with the approved candidates to brief them on the do's and don'ts of their electoral campaigns.
The Guardian Council, a 12-member body, is tasked with vetting hopefuls for candidacy and confirming the election results.
Deputy Interior Minister Seyyed Solat Mortazavi said on Saturday that campaigning would officially begin once the Guardian Council announces the final list of candidates to the ministry, and it will end 24-hours before polls open.
The registration for the 11th presidential election of Iran ended on May 11, with 686 individuals having signed up for the race.
The president of Iran is elected for a four-year term in a national election.