Editors' Summary: TSCA provides EPA with broad authority to address potential hazards posed by the manufacture, processing, distribution in commerce, use, and disposal of chemical substances and mixtures. In this first of a three-part series, the authors begin a detailed examination of the statute and regulatory program. They review the origins, objectives, and key components of TSCA, and then analyze TSCA's scope -- focusing particularly on definitional issues and exclusions.

Aerial drones are emerging as an effective tool for environmental monitoring and enforcement because of their ability to reach areas that would be otherwise inaccessible or cost-prohibitive. However, the regulatory framework has not developed as fast as the technology, raising concerns. As EPA and other agencies consider using drones to monitor industrial sites and farmland, many landowners claim it would be an invasion of privacy. Using drones for inspections also raises legal questions about information obtained from drone flyovers and the associated evidentiary requirements.