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The U.S. Environmental Protection Agency (EPA) published on December 28, 2011, proposed significant new use rules (SNUR) for 17 chemical substances that were the subject of premanufacture notices (PMN). Of particular interest, seven of the PMN substances’ reported chemical names include the term “carbon nanotube” (CNT) or “CNT.”  EPA states that because of a lack of established nomenclature for CNTs, the Toxic Substances Control Act (TSCA) Inventory names for CNTs are...

In a January 5, 2009, Federal Register notice, the U.S. Environmental Protection Agency (EPA) announces receipt of several premanufacture notices (PMN) concerning multi-walled carbon nanotubes (CNT). Under Section 5 of the Toxic Substances Control Act (TSCA), EPA requires any person who intends to manufacture (defined by statute to include import) a new chemical (i.e., a chemical not on the TSCA Inventory) to notify EPA and comply with the statutory provisions pertaining to the...