C.R.S. § 24-33.5-2302

(1) On and after January 1, 2020, a person shall not sell, lease, or offer for use in the state an SCBA that contains or incorporates a pressure vessel unless the vessel is: (a) Certified as meeting all applicable standards promulgated by DOT or NIOSH and any standards adopted by the director by rule; and (b) Within its recommended service life following certification or, if applicable, recertification or requalification in accordance with the methods specified in special permit DOT-SP 16320 or a successor standard adopted by DOT or NIOSH.