With slight grammar changes, I hope a senator will propose and the Senate adopt this amendment. Requiring the signatures of 25% of voters in a region will reduce the chances of improper recalls, and requiring at least half of registered voters, with 60% of them voting aye on the recall, will make sure recalls aren't too easy or done for no real reason.
"Senators shall be subject to recall in each Region, according to the provisions that at least a quarter of registered voters in the respective Region must sign a petition to initiate a recall, an initiated recall vote must require the turnout of at least half of registered voters in the respective Region; and three-fifths of all votes, excluding abstentions, must be cast in favor of the recall; but no Region shall make or enforce any Act or other Rule prescribing regular elections for the Senate, except in accordance with the provisions established herein."