From the article:

According to language in the Senate bill, there is “documentation” that “the federal government or other entities acting on the federal government’s behalf or at the federal government’s request may conduct geoengineering experiments by intentionally dispersing chemicals into the atmosphere, and those activities may occur within the State of Tennessee.”

While the word “chemtrail” isn’t there, the idea that the federal government is doing “geoengineering experiments” is basically the core belief of the conspiracy theory.