Colorado constitution
Article V
Section 20

No bill shall be considered or become a law unless referred to a committee, returned therefrom, and printed for the use of the members. Every measure referred to a committee of reference of either house shall be considered by the committee upon its merits, and no rule of either house shall deny the opportunity for consideration and vote by a committee of reference upon such a measure within appropriate deadlines. A motion that the committee report the measure favorably to the committee of the whole, with or without amendments, shall always be in order within appropriate deadlines. Each measure reported to the committee of the whole shall appear on the appropriate house calendar in the order in which it was reported out of the committee of reference and within appropriate deadlines.