C.R.S. § 1-5-103

(1) Changes in the boundaries of precincts or the creation of new precincts for partisan elections must be completed no later than twenty-nine days prior to the first Tuesday in March, except in cases of precinct changes resulting from changes in county boundaries. (2) Subject to approval by the board of county commissioners, the county clerk and recorder shall change the location of any polling location upon a petition of a majority of the eligible electors residing within a county if the request is made at least ninety days prior to the primary election. (3) All changes in precinct boundaries or numbering for partisan elections, including changes required pursuant to section 1-5-101.5 , shall be reported within ten days by the county clerk and recorder to the secretary of state, and a corrected precinct map shall be transmitted to the secretary of state as soon as possible after the changes have been effected.