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Nanoscale Materials Stewardship Program

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Read about Control of Nanoscale Materials under the Toxic Substances Control Act.

EPA's voluntary Nanoscale Materials Stewardship Program (NMSP) ended in December 2009. The Agency released its Interim Report on the NMSP (PDF) (38 pp, 872K) in January 2009.

Although the NMSP provided EPA with useful information regarding a limited number of nanoscale materials in commerce, a significant number of the environmental health and safety data gaps remain. To address these gaps and prevent potential risks that may be posed by nanoscale materials, EPA is taking a number of regulatory actions under the Toxic Substances Control Act.


In October 2006, EPA launched a collaborative public process to design and develop this stewardship program. On July 12, 2007, EPA announced the availability for public comment of:

EPA held a public meeting (PDF) (35 pp, 119K) on August 2, 2007, to obtain additional input on the NMSP and related documents. EPA finalized the design and format of the NMSP based on written public comments, comments received at the public meeting, and scientific peer consultations on risk management practices (PDF) (75 pp, 464K) in October 2006, and on material characterization (PDF) (83 pp, 601K) in September 2007.

On January 28, 2008, EPA announced the final NMSP and invited interested parties to participate in the program. The NMSP had two parts:

  1. Basic Program for reporting available information on engineered nanoscale materials that were manufactured, imported, processed or used; and

  2. In-depth Program to voluntarily develop data, including testing, over a longer time frame.

NMSP Participants

EPA is posting all non-confidential submissions; click on the company name below to access the submission(s) from that company. Other submissions, containing confidential business information, cannot be placed on the EPA Web site.

Submitted under the Basic Program (31 organizations covering more than 132 nanoscale materials)

BASF Corporation
Bayer Material Science
Dow Chemical
General Electric
International Carbon Black Association
Nanophase Technologies Corporation
Office ZPI
PPG Industries
Pressure Chemical
Quantum Sphere
Sabic Plastic Innovations
Sasol North America
Selah Technologies, Inc
SouthWest NanoTechnologies, Inc.
Showa Denko KK
Silver Nanotechnology Working Group
Strem Chemicals
Swan Chemicals Inc.
Synthetic Amorphous Silica and Silicate Industry Association
Three companies claimed as Confidential Business Information

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