The Rhode Island Clean Air Preservation Act is a proposed bill aimed at protecting public health and the environment by prohibiting weather engineering activities, including solar radiation modification (SRM) and stratospheric aerosol injection (SAI), within the state of Rhode Island. The bill introduces new definitions for terms such as "geoengineering" and "weather modification," and outlines the state's authority to prevent pollution from such activities. It also mandates that state personnel involved in climate-related activities be U.S. citizens and directly responsive to constituents. The Department of Environmental Management (DEM) is tasked with enforcing the Act, which includes issuing cease-and-desist orders for polluting activities, with penalties for violations.

The bill further requires that any hazardous activities approved by the federal government receive a notice from the state department, invoking the Tenth Amendment to assert state rights. It sets forth severe penalties for engaging in prohibited activities, including felony charges, fines, and imprisonment. The bill encourages public participation in monitoring and reporting environmental pollution and outlines procedures for investigating and responding to harmful emissions. The act is designed to take effect immediately upon passage, emphasizing the state's commitment to preserving air quality and preventing potentially harmful weather engineering practices.