Colorado Revised Statutes Title 32. Special Districts § 32-11-564. Refunding bonds

(a) For the acceleration, deceleration, or other modification of the payment of such obligations, including without limitation any capitalization of any interest thereon in arrears or about to become due for any period not exceeding three years from the date of the refunding bonds, unless the capitalization of interest on bonds constituting an indebtedness increases the district debt in excess of the district's debt limitation in section 32-11-534; or

(b) For the purpose of reducing interest costs or effecting other economies; or

(c) For the purpose of modifying or eliminating restrictive contractual limitations pertaining to the issuance of additional bonds, otherwise concerning the outstanding bonds, or to any facilities pertaining thereto; or

(d) For any combination of such purposes.