Article VIII, Sect. 12
The qualified electors of the state, of any congressional, judicial or legislative district or of any county may petition for the recall of any incumbent elective officer after the first year of the term for which the incumbent was elected, by filing a petition with the filing officer with whom the nomination petition to the office in the primary is filed, demanding the recall of the incumbent.
(1) The recall petition shall be signed by electors equaling at least twenty-five percent of the vote cast for the office of governor in the lass preceding election, in the state, county or district (meaning the number of votes for gov in the recall district)
subsections 2-5 set out other parameters for the recall, including the timeline, holding a primary and the responsibilities of the incumbent and challengers.
(6)After one such petition and recall election, no further recall petition shall be filed against the same officer during the term for which he was elected.
But the most important provision of our constitution regarding recalls...
(7) This section shall be self-executing and mandatory. Laws may be enacted to facilitate its operation but no law shall be enacted to hamper, restrict, or impair the right of recall.