Maryland state senator Richard S. Madaleno, Jr (D-District 18) has introduced a measure calling for stricter monitoring of air pollutants emitted by factory farms, also known as Concentrated Animal Feeding Operations (CAFOs).

Senate Bill 773, the Community Healthy Air Act (CHAA) would require the Maryland Department of the Environment (MDE) to identify and monitor all air pollutants that are emitted by the factory farms and report back to the Maryland General Assembly on its findings.