The prosecutors made the same request for logistics businessman Aldo Spinelli - the former chairman of Genoa and Livorno football clubs - and former Genoa Port Authority President Paolo Signorini.
The case regards alleged bribes in which cash for an election campaign was exchanged for favours, including the extension of a port terminal concession.
Toti, who has been under house arrest since May 7, has said he is innocent and will be able to show his management of the northwestern Italian region was clean.
The centre-right politician resigned as Liguria governor on Friday.
A preliminary investigations judge will now verify whether the conditions for an immediate trial have been met and, if so, set a trial date.
Liguria is set for early regional elections because of the case.
Interim Liguria Governor Alessandro Piana said Tuesday that October 27-28 has been proposed to the central government as the election date.
ANSA
