Contents: Part 10 | Part 21 | Part 20 TENORM regulation | Recently amended regulations | Current regulations
Current rulemaking activities
Get the schedule of all department rulemaking activities for the 2024 calendar year
Part 10 Rulemaking
Notice of public rulemaking hearing for Radiation Regulations Part 10
We are holding a stakeholder process to engage and notify stakeholders about minor proposed changes to the Colorado Rules and Regulations Pertaining to Radiation Control, Part 10, titled “Radiation Control – Notices, instructions, and reports to workers: inspections”. The primary purpose of the proposed changes is to clarify language for consistency with other radiation control regulations and formatting and to ensure more consistent language with federal rules in 10 CFR Part 19. This rulemaking does not include any substantial changes to the existing requirements.
To better understand all changes being proposed, interested parties should review all of the documents on this page, including:
- The Part 10 summary of proposed changes.
- The Part 10 draft proposed rule (February 28, 2024).
- Part 10 rulemaking schedule.
Stakeholder comment period
A stakeholder comment period for Part 10 was held March 1 through March 31, 2024. No comments were received during the comment period.
A rulemaking hearing is scheduled for June 20, 2024. Refer to the notice of public rulemaking hearing above and the Part 10 rulemaking schedule for further details.
Part 21 rulemaking: Radon LIRMA program
Notice of public rulemaking hearing for Radiation Regulations Part 21
We are holding a stakeholder process to engage and notify stakeholders about proposed changes to the Colorado Rules and Regulations Pertaining to Radiation Control, Part 21, titled “Colorado Low Income Radon Mitigation Assistance (LIRMA) Program”. The proposed changes will clarify existing language and requirements for consistency with the wording of the Colorado Department of Regulatory Agencies (DORA) licensing requirements for radon measurement and mitigation professionals.
To better understand all changes being proposed, interested parties should review all of the documents on this page, including:
- The Part 21 summary of proposed changes.
- The Part 21 draft proposed rule (January 31, 2024).
- Part 21 rulemaking schedule.
Stakeholder comment period
A stakeholder comment period for Part 21 was held February 5 through March 6, 2024. No comments were received during the comment period.
A rulemaking hearing for Part 21 is scheduled for June 20, 2024. Refer to the public notice of rulemaking hearing above and the Part 21 rulemaking schedule for further details.
- Part 2 and Part 6, effective April 14, 2024
- Part 3, effective December 15, 2023.
- Part 4, effective December 15, 2023.
- Part 7, 17, and 22, effective December 15, 2022.
- Part 8, Part 5 and Part 2, effective Aug. 14, 2021.
- Part 21, effective July 15, 2021.
- Part 16 and Part 19, effective July 15, 2021.
See the guide to additional information about radiation regulations now in effect for more information.
Part 20 (TENORM) and Part 12 Rules
Following an extensive stakeholder process, on November 18, 2020, the Colorado Board of Health adopted the Part 20 TENORM rule along with related changes to the Part 12 regulation. The new rule became effective on January 14, 2021 and is enforceable beginning July 14, 2022.
The new Part 20 TENORM and part 12 rules
Although the regulation is complete, with assistance and input from impacted stakeholders, the Radiation program continues to develop guidance to assist in the implementation of the Part 20 TENORM rule.
Refer to the TENORM guidance development page for more information
Refer to the TENORM resources page for background information