This joint resolution seeks to block an Environmental Protection Agency rule that sets greenhouse gas emission limits for both new and existing coal and natural gas-fired power plants. If passed, the resolution would nullify the EPA's standards and repeal the agency's prior Affordable Clean Energy Rule, effectively removing federal restrictions on carbon emissions from electric generating units. The measure affects power plant operators, utility companies, and state environmental regulators who would no longer be bound by these emissions standards. The resolution uses the Congressional Review Act, a procedural mechanism that allows Congress to disapprove federal agency rules. No specific funding or implementation timeline is addressed in the legislation, as its sole purpose is to block the EPA rule from taking effect.