The Climate Commitment Clarification Temporary Amendment Act of 2025 amends the District Department of the Environment Establishment Act of 2005 to specify that the act does not apply to the replacement of components or units of existing space- or water-heating systems that utilize natural gas, oil, or other fossil fuels. The bill includes several amendments to Section 109e, including changes to the section heading and the designation of existing text as paragraph (1). Notably, it replaces the terms "appliances" with "systems" in multiple instances to clarify the scope of the law.

Additionally, a new paragraph (2) is introduced, explicitly stating that the subsection does not apply to the replacement of components of existing heating systems that rely on fossil fuels. The act is set to take effect on January 1, 2025, following the necessary approval processes, and will expire on September 3, 2025. The fiscal impact statement has been adopted as required by law.