Colorado Revised Statutes Title 1. Elections § 1-12-202. Vacancies in office of representative in congress

Except as provided in section 1-4-401.5, when any vacancy occurs in the office of representative in congress from this state, the governor shall set a day to hold a congressional vacancy election to fill the vacancy and cause notice of the election to be given as required in part 2 of article 5 of this title; but congressional vacancy elections shall not be held within the ninety-day period preceding a general election.