The U.S. Environmental Protection Agency (EPA) announced on July 2, 2020, that it registered NSPW Nanosilver as a new active ingredient that helps suppress odor-causing bacteria, and algae, fungus, mold, and mildew that can cause deterioration or staining in textiles.  EPA notes that NSPW Nanosilver is registered only for use in specified textiles, including fabrics,

As reported in our February 13, 2020 blog item, the U.S. Environmental Protection Agency (EPA) announced on February 12, 2020, that it is seeking public input on a proposal to incorporate a new nanosilver pesticide product into textiles to combat odors, discoloration, and other signs of wear.  The proposed registration decision is for NSPW

The U.S. Environmental Protection Agency (EPA) announced on February 12, 2020, that it is seeking public input on a proposal to incorporate a new nanosilver pesticide product into textiles to combat odors, discoloration, and other signs of wear.  The proposed registration decision is for NSPW Nanosilver, and the proposed pesticide product, Polyguard-NSPW Master Batch (Polyguard),

On January 24, 2020, the U.S. Environmental Protection Agency (EPA) posted a December 13, 2019, memorandum to Docket EPA-HQ-OPP-2011-0370, the nanosilver registration review docket.  The memorandum lists the 12 products for which EPA issued a generic data call-in (GDCI) as part of the nanosilver case (5042).  EPA issued the DCIs on August 31, 2019,

We are pleased to announce that the Fall 2019 issue of The SciTech Lawyer, published by the American Bar Association’s (ABA) Section of Science and Technology Law, includes an article co-authored by Lynn L. Bergeson and Carla N. Hutton, “Nanotechnology and Regulatory Certainty Closer Now Than Ever.”  Nanoscale technologies and their resultant

On October 19, 2018, the U.S. Environmental Protection Agency (EPA) posted the Final Work Plan (FWP) for the nanosilver registration review process under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA). The FWP explains what the Office of Pesticide Programs (OPP) “knows about nanosilver generally, highlighting anticipated data and assessment needs for each unique nanosilver

On May 30, 2017, the U.S. Court of Appeals for the Ninth Circuit responded to two petitions for review of the U.S. Environmental Protection Agency’s (EPA) conditional registration of a nanosilver pesticide product and vacated the conditional registration.  NRDC v. EPA, No. 15-72308.  The Natural Resources Defense Council (NRDC) as well as the Center

On May 19, 2015, the U.S. Environmental Protection Agency (EPA) announced that it issued a conditional registration for a nanosilver-containing antimicrobial pesticide product named “NSPW-L30SS,” or “Nanosilva.”  This is the second nanosilver registration issued by EPA and reflects the Agency’s growing expertise in addressing, processing, and approving nanopesticide registration applications.  According to EPA, the product

Almost seven years ago, the International Center for Technology Assessment (ICTA) filed a petition for rulemaking requesting that the U.S. Environmental Protection Agency (EPA) regulate products containing nanosilver as pesticides and for related other forms of relief.  On March 19, 2015, EPA responded to the petition.  In general, the response does not alter EPA’s

On July 6, 2012, the U.S. Environmental Protection Agency (EPA) announced the establishment of a registration review docket for nanosilver. EPA states that registration review is its “periodic review of pesticide registrations to ensure that each pesticide continues to satisfy the statutory standard for registration, that is, the pesticide can perform its intended function without unreasonable adverse effects on human health or the environment.” Registration review dockets include information intended to assist the public in understanding the types of information and issues that EPA may consider during the course of registration reviews. According to the preliminary work plan, EPA has information that there are silver-based pesticide products that were registered without the registrant disclosing to EPA the presence or characteristics of the nanosilver in their products. EPA sent a letter in August 2009 to each registrant with silver-based products requesting a statement as to whether their products contained any amount of silver in any form having a dimension that measures between 1 and approximately 100 nanometers. Four registrants responded that their products, which were registered using data for conventional silver, contain nanosilver. In the preliminary work plan, EPA states it is identifying several other products, registered using data for silver chloride, as potentially containing nanosilver. The registration review for nanosilver includes these products, as well as the two HeiQ nanosilver products conditionally registered in December 2011. According to the preliminary work plan, EPA believes that additional data are needed to determine whether the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) standard for maintaining these registrations is met “due to nanosilver’s unique physical and chemical properties, and thus nanosilver’s potentially different health and safety properties as compared to silver.”


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