Prohibiting solar radiation modification or sunlight reflection methods, cloud seeding and polluting atmospheric interventions within this Commonwealth; imposing duties on the Pennsylvania State Police and sheriffs; and imposing penalties.
HB1167, titled the Clean Air Preservation Act, would prohibit a broad set of activities described as solar radiation modification, sunlight reflection methods, cloud seeding, weather engineering, weather modification, and other “polluting atmospheric interventions” within Pennsylvania. The bill defines these terms expansively to include a wide range of atmospheric, environmental, and pollutant-related actions, including some involving artificial intelligence, machine learning, aircraft, ground generators, and other facilities. It also defines “pollutant” and “physical agent” very broadly, reaching substances and non-substance agents such as radiation, sound, electromagnetic fields, and other listed materials or forces.
The bill directs the Pennsylvania State Police and county sheriffs to immediately issue cease-and-desist orders when cloud seeding or a polluting atmospheric intervention is suspected, and gives those orders the force of a court order. It further requires state or local enforcement to notify federal agencies if a federally approved activity is deemed hazardous under the act, and authorizes referral of potentially prohibited activity to the Air National Guard. Violations would be treated as felonies, punishable by at least a $500,000 fine, at least two years’ imprisonment, or both, with each day of continued activity treated as a separate offense. The bill also ties violations to penalties under the state Air Pollution Control Act and would take effect immediately upon enactment.
If enacted, HB1167 would create a new statewide prohibition on a wide range of weather- and climate-related interventions and would expand enforcement authority for the Pennsylvania State Police and sheriffs. It would effectively add a new layer of state restrictions over activities that may already be regulated or authorized at the federal level, and it would impose severe criminal and civil penalties on entities engaged in the listed conduct. The bill would also interact with the Air Pollution Control Act by making violators subject to additional penalties under that law.
No committee transcripts or recorded votes were provided, so there is no documented floor or committee sentiment to summarize. Based on the bill text alone, the measure appears strongly precautionary and enforcement-oriented, reflecting concern about atmospheric modification, cloud seeding, and related technologies. The absence of recorded debate or votes means support and opposition cannot be assessed from the available history.
The main points of contention likely center on the bill’s very broad definitions and the scope of conduct it would prohibit. Potential critics may question whether the terms “polluting atmospheric intervention,” “weather engineering,” and “pollutant” are defined too expansively, potentially capturing legitimate scientific research, environmental management, or federally authorized activities. Another likely issue is the bill’s enforcement structure, which gives state police and sheriffs immediate cease-and-desist authority and imposes felony penalties, raising concerns about due process, scientific ambiguity, and possible conflict with federal authority. Supporters would likely emphasize environmental protection, public health, and a desire to prevent unregulated atmospheric experimentation.