C.R.S. § 30-20-411: Incontestable recital in bonds.

Any resolution authorizing, or any trust indenture or other instrument appertaining to, any bonds under this part 4 may provide that each bond therein authorized shall recite that it is issued under authority of this part 4. Such recital shall conclusively impart full compliance with all of the provisions of this part 4, and all bonds issued containing such recital shall be incontestable for any cause whatsoever after their delivery for value.