Colo. Rev. Stat. § 29-1-112
In case of an emergency and the passage of an ordinance or resolution authorizing additional expenditures in excess of the appropriation as provided in section 29-1-111 and if there is money available for such excess expenditure in some other fund or spending agency which will not be needed for expenditures during the balance of the fiscal year, the governing body shall transfer the available money from such fund to the fund from which the excess expenditures are to be paid. If available money which can be so transferred is not sufficient to meet the authorized excess expenditure, then the governing body may obtain a temporary loan to provide for such excess expenditures. The total amount of the temporary loan shall not exceed the amount which can be raised by a two-mill levy on the total assessed valuation of the taxable property within the limits of the local government of such governing body.
C.R.S. § 29-1-112
This section is similar to former § 29-1-115 as it existed prior to 1990.