4 Colo. Code Regs. § 751-1.1Download PDFCurrent through Register Vol. 48, No. 1, January 10, 2025Section 4 CCR 751-1.1 - [Repealed]4 CCR 751-1.139 CR 23, December 10, 2016, effective 7/1/201743 CR 19, October 10, 2020, effective 10/30/2020