1. (1) In accordance with article 4 of title 24, the board shall establish a Colorado plumbing code, as defined in section 12-155-103 (1.4). The code must represent the minimum standards for installation, alteration, and repair of plumbing equipment and systems throughout the state.
2. (2) Local governments are permitted to amend the code for their jurisdictions as long as the amendments are at least equal to the minimum requirements set forth in the Colorado plumbing code.
3. (3) If petitioned, the board shall annually hold public hearings to consider amendments to the Colorado plumbing code.
4. (4) The board is authorized to review and approve or disapprove requests for exceptions to the code in unique construction situations where a strict interpretation of the code would result in unreasonable operational conditions or unreasonable economic burdens as long as public safety is not compromised.
5. (4.5) In the event of a conflict between the 2021 international energy conservation code, the 2024 international energy conservation code, the model electric ready and solar ready code developed by the energy code board pursuant to section 24-38.5-401 (5), or any energy codes adopted by either a local government or divisions in the executive branch of state government and the Colorado plumbing code, the Colorado plumbing code prevails.
6. (5) The board shall adopt a Colorado fuel gas code for the gas piping installations inspection requirement of section 12-155-105 (1)(k).

7. (6)

   1. (a) Notwithstanding any authority granted to the board by this section and after rules are adopted by the state housing board pursuant to section 24-32-3304 (1)(h)(III), the board does not have jurisdiction over and the rules of the board do not apply to any activity required to undertake or complete the construction or installation of a factory-built structure, as defined in section 24-32-3302 (11).
   2. (b) Plumbing installations that connect these structures to external utility sources and that are not considered actions to complete the installation of a factory-built structure as required by a registered installer must be completed by a licensed plumber under a registered plumbing contractor.
   3. (c) The installation of gas piping on the service side must be completed by a qualified gas piping installer.
   4. (d) The inspection and inspectors of these installations, other than those authorized to be performed by a registered installer, are regulated in this article 155 and must be performed by licensed plumbing inspectors.

Source: L. 2019: Entire title R&RE with relocations, (HB 19-1172), ch. 136, p. 993, § 1, effective October 1. L. 2022: (4.5) added, (HB 22-1362), ch. 301, p. 2179, § 3, effective June 2. L. 2025: (6) added, (SB 25-002), ch. 172, p. 713, § 2, effective May 8; (1) amended, (HB 25-1306), ch. 204, p. 926, § 3, effective August 6.

Editor's note: This section is similar to former § 12-58-104.5 as it existed prior to 2019.

Cross references: For the legislative declaration in SB 25-002, see section 1 of chapter 172, Session Laws of Colorado 2025.