18 November, 2025
The US EPA has continued updating internal guidance on evaluating research data, including nano-specific studies, under TSCA PMN/SNUN reviews. While not constituting nano-specific regulations, this work further integrates nanomaterials into mainstream chemical review processes.
Key themes include toxicokinetic considerations, dissolution and transformation profiling, and particulate behavior in exposure models. This ongoing effort reflects EPA's commitment to harmonizing nano-relevant data streams within existing regulatory frameworks.
