It seems fairly obvious based on other articles talking about this that the legislation originates from chemtrail conspiracy theories and not actual geoengineering. I will quote some parts

Louisiana Rep. Kimberly Landry Coates stood before her colleagues in the state’s Legislature she warned that the bill she was presenting might “seem strange” or even crazy.

Coates described situations that are often noted in discussions of “chemtrails”

As she urged lawmakers to ban the unsubstantiated practice, she told skeptics to “start looking up” at the sky.

“I’m really worried about what is going on above us and what is happening, and we as Louisiana citizens did not give anyone the right to do this above us

Such bills being crafted is indicative of how misinformation is moving beyond the online world and into public policy.

Chemtrail believers often call chemtrails "geoengineering" as a means of giving their conspiracy theories some credibility. That's not to say geoengineering isn't real. I'm saying it's a term that conspiracy theorists have appropriated to talk about chemtrails without actually mentioning the word chemtrails