Fifa is to set up an 11-man taskforce to look at reforming football's scandal-hit world governing body.
Proposals for reform will include term limits for presidents and integrity checks for top officials, president Sepp Blatter announced.
Fifa will hold an extraordinary congress to elect its new president on 26 February 2016, he added.
Blatter announced he would stand down in June - just four days after being re-elected president.
That followed the arrest of seven Fifa officials as part of a United States investigation. The seven were among 14 indicted on corruption charges.
A second criminal case was launched by Swiss prosecutors into the bids for the 2018 and 2022 World Cups, to be held in Russia and Qatar respectively.
Candidates to replace Blatter in the February election must be nominated before 26 October.
Uefa president Michel Platini has been asked by a majority of world football chiefs to stand for the post.
Initial predictions were of a December election, as favoured by several regional football confederations.
By the time of the vote, Blatter will have been in office for almost nine months from the date of his 2 June resignation speech.
He did not backtrack on his announcement to stand aside, despite appearing to suggest in June he was reconsidering, confirming: "On 26 of February, Fifa will have a new president."
Earlier on Monday, Prince Ali bin al-Hussein - who lost to Blatter in the May election - had called for the 79-year-old Swiss to leave his post immediately.
"President Blatter's resignation cannot be dragged out any longer. He must leave now," he said.
"An interim independent leadership must be appointed to administer the process of the elections, in addition to the reforms that are being discussed prior to the elections."
The term limits for all Fifa executives and its president have already been approved in principle by the executive committee, as have integrity checks and salary transparency.