Title 25, Public Health and Environment
0 chapters · 1,375 sections in this title.
Colo. Rev. Stat. § 25-7-139 Methyl tertiary butyl ether - prohibition - phase-out - civil penalty
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(1) The general assembly finds and declares that methyl tertiary butyl ether (“MTBE”) is an oxygenate used in gasoline and other fuel products in this state and in the United States. The general assembly also finds that MTBE may leak into and contaminate groundwater supplies, and…
Colo. Rev. Stat. § 25-7-140 Greenhouse gas emissions - data collection - legislative declaration - rules - reporting - forecasting - public information - definitions
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(1) Legislative declaration. The general assembly hereby:(a) Finds that: (I) Greenhouse gas emissions reporting requirements were first established in Colorado in 2008 with executive order D 004-08. The policies established by this executive order were continued under the next go…
Colo. Rev. Stat. § 25-7-1401 Legislative declaration
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(1) The general assembly finds that: (a) Disproportionately impacted communities are disproportionately affected by particulate matter and nitrogen oxides arising from fossil-fuel-powered school buses, especially because the fleet yards, warehouses, fuel depots, and interstates u…
Colo. Rev. Stat. § 25-7-1402 Definitions
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As used in this part 14, unless the context otherwise requires: (1) Charter school means a charter school authorized pursuant to part 1 of article 30.5 of title 22, the state charter school institute established pursuant to section 22-30.5-503, or an institute charter school auth…
Colo. Rev. Stat. § 25-7-1403 Electrifying school buses grant program - creation - eligibility
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(1) (a) (I) The electrifying school buses grant program is created to allow a school district, charter school, or nonprofit partner acting on behalf of a school district or charter school to apply to the department for grant money to help finance: (A) The procurement and maintena…
Colo. Rev. Stat. § 25-7-1404 Reporting
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(1) On or before January 1, 2025, and on or before January 1 of each odd-numbered year thereafter, the department shall prepare a report summarizing the progress of the grant program and submit the report to the house of representatives education committee and energy and environm…
Colo. Rev. Stat. § 25-7-1405 Electrifying school buses grant program cash fund - creation - gifts, grants, and donations - transfer - repeal
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(1) (a) The electrifying school buses grant program cash fund is created in the state treasury, and, except as otherwise provided in subsection (2)(b) of this section, the department shall administer the fund for the purposes of this part 14. The fund consists of any money that t…
Colo. Rev. Stat. § 25-7-1406 Repeal of part
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This part 14 is repealed, effective September 1, 2034. Source: L. 2022: Entire part added, (SB 22-193), ch. 300, p. 2156, � 3, effective June 2.
Colo. Rev. Stat. § 25-7-141 Air toxics - duties of covered entities - public notice of air quality incidents - monitoring - corrective action - legislative declaration - definitions - rules
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(1) Legislative declaration. The general assembly hereby:(a) Finds that: (I) Air toxics are pollutants that cause or may cause cancer or other serious health effects, such as adverse reproductive effects or birth defects, or adverse environmental and ecological effects; and (II) …
Colo. Rev. Stat. § 25-7-142 Energy benchmarking - data collection and access - utility requirements - task force - rules - reports - exemptions - definitions - legislative declaration
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(1) Legislative declaration. The general assembly finds, determines, and declares that the regulation of building performance is a matter of statewide concern because:(a) As of 2020, buildings represented a significant source of greenhouse gas pollution in the state of Colorado; …
Colo. Rev. Stat. § 25-7-143 Emergency stationary engine exception - legislative declaration - rules - notice to revisor - repeal
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(1) [Editor’s note: This section is effective (see editor’s note following this section)](1) (a) The general assembly hereby finds that: (I) The United States armed forces protect the United States, including the people of Colorado, from threats domestic and abroad; (II) Colorado…
Colo. Rev. Stat. § 25-7-144 Tampering with motor vehicle emission control systems - violations - exceptions - rules - reporting - definitions
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(1) On or after January 1, 2024, except as provided otherwise in this section, a person shall not: (a) Tamper with any emission control system; (b) Sell, offer for sale, or possess for sale to an end user; advertise; manufacture; install; or use any part or component that is inte…
Colo. Rev. Stat. § 25-7-145 Legislative interim committee on ozone air quality - created - members - repeal. (Repealed)
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C.R.S. 25-7-145Statutes current through Chapter 65 of the 2026 Regular Session, effective as of April 20, 2026. The text of this section is not final. It will not be final until compared to, and updated from, the text provided by the Colorado Office of Legislative Legal Services …
Colo. Rev. Stat. § 25-7-146 Petroleum refinery pollution - assessment - monitoring data - rules - definitions
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(1) (a) On or before January 1, 2025, the division shall hire an expert regarding air pollution control regulations for petroleum refineries. The petroleum refinery regulation expert shall: (I) Assess the feasibility, costs, and benefits for the division to propose to the commiss…
Colo. Rev. Stat. § 25-7-147 Rapid response inspection team
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(1) The division shall establish a rapid response inspection team to respond quickly to air quality complaints filed with the division. The division shall hire and develop a team to serve as the Rapid response inspection team. (2) The rapid response inspection team shall develop …
Colo. Rev. Stat. § 25-7-1501 Legislative declaration
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(1) The general assembly declares that it is in the interest of the state to reduce and prevent air pollution from certain new heating and water heating appliances in order to: (a) Protect the air that Coloradans breathe by reducing unhealthy levels of smog and ozone, which have …
Colo. Rev. Stat. § 25-7-1502 Definitions
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As used in this part 15, unless the context otherwise requires: (1) BTU means British thermal unit, which is a scientific unit of measurement equal to the quantity of heat required to raise the temperature of one pound of water one degree Fahrenheit at approximately sixty degrees…
Colo. Rev. Stat. § 25-7-1503 Scope and applicability
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(1) Except as described in subsection (2) of this section and as modified by rules promulgated by the executive director or the commission pursuant to section 25-7-1506, this part 15 applies to the following new products: (a) Water heaters with a rated heat input capacity of two …
Colo. Rev. Stat. § 25-7-1504 Emission standards for new products
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(1) On and after January 1, 2026, except as described in section 25-7-1506, a person shall not manufacture, distribute, sell, offer for sale, lease, or offer for lease in Colorado any of the following new products unless the emissions of the product do not exceed the following em…
Colo. Rev. Stat. § 25-7-1505 Testing - required displays - demonstrations of compliance
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(1) Manufacturers of natural-gas-fueled water heaters described by section 25-7-1503 (1)(a) shall test each applicable model for sale in Colorado in accordance with the south coast air quality management district protocol Nitrogen Oxides Emissions Compliance Testing for Natural G…
Colo. Rev. Stat. § 25-7-1506 Rules - analysis
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(1) Notwithstanding any provision of this part 15, the executive director may promulgate rules updating any emission standard, definition, or test method established in this part 15 in order to maintain or improve consistency with other comparable standards in other states so lon…
Colo. Rev. Stat. § 25-7-1507 Enforcement - verifications of compliance - civil action by attorney general - penalties
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(1) The executive director shall: (a) Verify major retailers’ and distributors’ compliance with the provisions of this part 15 through online spot-checks, coordination with other states that have similar standards, or both; (b) Conduct such verifications at least once before Janu…
Colo. Rev. Stat. § 25-7-1601 Legislative declaration
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(1) The general assembly finds and determines that: (a) Rising temperatures are increasing the demand for air conditioners; (b) Common types of air conditioners can also provide winter heating if they are configured as heat pumps, which are a more environmentally friendly option …
Colo. Rev. Stat. § 25-7-1602 Definitions
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As used in this part 16, unless the context otherwise requires: (1) Air conditioner means an electrically powered mechanical device that uses the refrigeration cycle to cool an interior habitable space. (2) Applicable air conditioner means an air conditioner that is: (a) New; (b)…
Colo. Rev. Stat. § 25-7-1603 Colorado energy office - study - accelerated adoption of heat pump technology
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(1) On or before August 1, 2024, the office shall commence a study with targeted stakeholder input to explore how to accelerate adoption of heat pump technology in Colorado through a technical standard for applicable air conditioners. (2) In conducting the study, the office shall…
Colo. Rev. Stat. § 25-7-1604 Repeal of part
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This part 16 is repealed, effective July 1, 2030. Source: L. 2024: Entire part added, (SB 24-214), ch. 191, p. 1100, � 13, effective May 17.
Colo. Rev. Stat. § 25-7-201 Prevention of significant deterioration program
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(1) It is the policy of this state to prevent the significant deterioration of air quality in those portions of the state where the air quality is better than the national ambient air quality standards by means including, but not limited to, the following: (a) Except as provided …
Colo. Rev. Stat. § 25-7-202 Definitions. (Repealed)
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Source: L. 79: Entire article R&RE, p. 1051, � 1, effective June 20. L. 81: (4)(a), (4)(b), IP(4)(c), (4)(c)(VII), (4)(d), and (5) to (7) amended and (4)(c) and (6.5) added, pp. 1306, 1308, �� 2, 3, effective May 29. L. 84: (2) amended, p. 776, � 17, effective July 1. L. 92: Enti…
Colo. Rev. Stat. § 25-7-203 State implementation plan - contents
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In accordance with Part C (Prevention of Significant Deterioration) of the federal act and this part 2, the commission shall incorporate in the state implementation plan emission limitations, requirements for employment of best available control technology, and such other measure…
Colo. Rev. Stat. § 25-7-204 Exclusions
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(1) The requirements of the state implementation plan for prevention of significant deterioration of ambient air quality shall not apply to a major stationary source or major modification with respect to a particular pollutant if the owner or operator demonstrates that: (a) As to…
Colo. Rev. Stat. § 25-7-205 Innovative technology - waivers
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The division or the commission may grant a waiver from the best available control technology requirements of this part 2 for proposed new or modified sources in order to encourage the use of an innovative technological system or systems of continuous emission reduction if the adm…
Colo. Rev. Stat. § 25-7-206 Procedure - permits
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(1) Applications for a proposed new or modified source subject to the requirements of this part 2, or any additions to such applications, shall be processed by the division and the commission as provided in sections 25-7-114 to 25-7-114.7. (2) The owner or operator of a proposed …
Colo. Rev. Stat. § 25-7-207 Exemptions. (Repealed)
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Source: L. 79: Entire article R&RE, p. 1054, � 1, effective June 20. L. 92: Entire section repealed, p. 1230, � 30, effective July 1.
Colo. Rev. Stat. § 25-7-208 Area designations
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(1) Except as provided in section 25-7-209, all areas of the state shall initially be designated as provided in section 162 of the federal act. (2) To the extent permitted by section 164 of the federal act, the commission may redesignate any area in the state as a Class I, Class …
Colo. Rev. Stat. § 25-7-209 Colorado designated pristine areas for sulfur dioxide
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(1) In the following areas which were designated Colorado category I for sulfur dioxide by the commission on October 27, 1977, the increase allowed in sulfur dioxide concentrations over the baseline concentration shall be the same as the increase established by section 163(b) of …
Colo. Rev. Stat. § 25-7-210 Applicability
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Sections 25-7-201 and 25-7-203 to 25-7-206 shall apply only to applications for proposed new major stationary sources and major modifications which are submitted on or after the date of approval by the United States environmental protection agency of the program for prevention of…
Colo. Rev. Stat. § 25-7-211 Visibility impairment attribution studies
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(1) Any visibility impairment reasonable attribution study pertaining to class I areas shall be subject to balanced peer review by a panel including scientists with appropriate expertise who do not have any substantive involvement with any party, shall be site-specific with respe…
Colo. Rev. Stat. § 25-7-212 Actions of federal government affecting visibility - evaluation report
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(1) As a part of the state’s ongoing development and implementation of a long-term strategy in connection with visibility and air quality related values within class I areas, the division shall evaluate the extent to which the activities of the federal government are directly adv…
Colo. Rev. Stat. § 25-7-213 Visibility and air quality related values policy task force. (Repealed)
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C.R.S. 25-7-213Statutes current through Chapter 65 of the 2026 Regular Session, effective as of April 20, 2026. The text of this section is not final. It will not be final until compared to, and updated from, the text provided by the Colorado Office of Legislative Legal Services …
Colo. Rev. Stat. § 25-7-214 Visibility impairment subcommittee. (Repealed)
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Source: L. 97: Entire section added, p. 933, � 1, effective May 21. Editor's note: (1) Subsection (2) provided for the repeal of this section, effective January 1, 1998. (See L. 97, p. 933.) (2) This section was enacted as � 25-7-215 but was renumbered on revision for ease of loc…
Colo. Rev. Stat. § 25-7-301 Attainment program
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(1) The commission shall develop a program providing for the attainment and maintenance of each national ambient air quality standard in each nonattainment area of the state, in conformity with and as provided in Part D (Nonattainment Program) of the federal act. (2) Subject to t…
Colo. Rev. Stat. § 25-7-302 State implementation plan - contents
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The attainment program embodied in the state implementation plan may, with respect to proposed new or modified major stationary sources within nonattainment areas which would cause or contribute to a violation of a national ambient air quality standard, provide an allowance for g…
Colo. Rev. Stat. § 25-7-303 Exemptions. (Repealed)
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Source: L. 79: Entire article R&RE, p. 1056, � 1, effective June 20. L. 92: Entire section repealed, p. 1230, � 32, effective July 1.
Colo. Rev. Stat. § 25-7-304 Emission reduction offsets
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The attainment program shall provide that emission reduction offsets which exceed those otherwise necessary to the granting of a permit under this part 3 may be preserved for sale or use in the future. Any emission reduction offset so preserved for future use and credit shall be …
Colo. Rev. Stat. § 25-7-305 Alternative emission reduction
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The attainment program shall provide that upon application of the owner or operator of a stationary source, the commission may approve as a revision to the state implementation plan a proposal to meet the applicable requirements of the state implementation plan for a given air po…
Colo. Rev. Stat. § 25-7-401 Legislative declaration
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The general assembly hereby declares that it is in the interest of the state to control, reduce, and prevent air pollution caused by wood smoke. It is therefore the intent of this part 4 to significantly reduce particulate and carbon monoxide emissions caused by burning wood by d…
Colo. Rev. Stat. § 25-7-402 Definitions
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As used in this part 4, unless the context otherwise requires: (1) Evaluate means to review wood-burning appliances' emission levels, as determined by an independent testing laboratory, and compare the emission levels to the emission performance standards established by the commi…
Colo. Rev. Stat. § 25-7-403 Commission - rule-making for wood-burning stoves
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(1) The commission shall promulgate rules and regulations to carry out the provisions of this part 4 relating to wood-burning stoves in conformity with the provisions and procedures specified in article 4 of title 24, C.R.S., and which shall become effective only as provided in s…
Colo. Rev. Stat. § 25-7-404 Wood stove testing program established
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(1) There is hereby established, in the department of health, an evaluation and certification program for the control of air pollution caused by wood stove emissions, which is designed to significantly reduce particulate and carbon monoxide emissions, referred to in this part 4 a…
Colo. Rev. Stat. § 25-7-405 Certification required for sale
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(1) On or after January 1, 1987, a person shall not advertise to sell, offer to sell, or sell a new wood stove in Colorado unless: (a) The particular model of wood stove or the particular configuration of wood stove appliance has been evaluated to determine its emission performan…