Colo. Rev. Stat. § 1-13.5-1008
Not later than 8:30 a.m. on the day of any local government election, the designated election official shall deliver to the election judges of one of the polling places of the local government, which polling place shall be selected by the designated election official, all the absentee voters' ballot envelopes received up to that time, in sealed packages. The designated election official shall take a receipt for the packages, together with the list of absentee voters, or, in the designated election official's discretion, the designated election official may elect to deliver the absentee voters' envelopes received from electors and the list of absentee voters to the election judges of the polling place. The designated election official shall continue to deliver any envelopes that are received thereafter during that day up to and including 7 p.m. On the sealed packages must be printed or written, "This package contains . . . (number) absentee voters' ballots." With the envelopes, the designated election official shall deliver to one of the election judges all the books, records, and supplies as are needed for tabulating, recording, and certifying said absentee voters' ballots.
C.R.S. § 1-13.5-1008