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Regulatory Development and Retrospective Review Tracker

Nanoscale Materials; Chemical Substances When Manufactured, Imported, or Processed as Nanoscale Materials; Reporting and Recordkeeping Requirements

a.k.a. Nanoscale - Reporting Rule (TSCA Section 8(a))

RIN: 2070-AJ54 (What's this?)

Docket No.: EPA-HQ-OPPT-2010-0572 (What's this?)

Current Phase: Proposal (What's this?)

EPA is developing a proposal to require reporting and recordkeeping under TSCA section 8(a), which would require that persons who manufacture these nanoscale materials notify EPA of certain information including production volume, methods of manufacture and processing, exposure and release information, and available health and safety data.

The proposed reporting of these activities will provide EPA with an opportunity to evaluate the information and consider appropriate action under TSCA to reduce any risk to human health or the environment.

NPRM: Sent to OMB for Regulatory Review11/18/2010
NPRM: Received by OMB11/22/2010
NPRM: Sent to OMB for Regulatory Review10/06/2014
NPRM: EPA Withdrew Rule from Review10/06/2014
NPRM: Received by OMB10/06/2014
NPRM: Regulatory Review Concluded03/19/2015
NPRM: Published in FR04/06/2015
NPRM: Comment Period Open04/06/2015
NPRM: Comment Period Closed07/06/2015
Final Rule: Published in FR06/2016 (projected)

Potential Effects

Small Entities
EPA notifies the public when a rulemaking is likely to 1) have any adverse economic impact on small entities even though a Regulatory Flexibility Analysis may not be required and/or 2) have significant adverse economic impacts on a substantial number of small entities. The term "small entities" includes small businesses, small governments, and small not-for-profits. (Read a longer explanation on our Small Entities web page.) This rulemaking is likely to impact small entities in the following way(s):

  • Likely to have any adverse economic impact on:
    • small businesses

Participate / Learn More

Comment Period Open (04/06/2015 until 07/06/2015) - Click to access the document on Regulations.gov and comment by clicking "Submit Comment" near the top of the Regulations.gov page.

Learn More

Regulatory Review

Some of EPA's rulemakings undergo regulatory review (What's this?), as prescribed by Executive Order 12866 and coordinated by the Office of Management and Budget (OMB). The following list describes which of this rulemaking's stages have completed review and published in the Federal Register, if any, and provides links to the review documents where available. Consult the "Timeline" section of this Web page for the dates of each review.

  • NPRM - This stage of the rulemaking underwent review.
Citations & Authorities

Federal Register Citations

Code of Federal Regulations (CFR) Citation
40 CFR parts 704 and 721

Legal Authority
15 U.S.C. 2604(a);15 U.S.C. 2607(a) Toxic Substances Control Act


This site provides summaries of priority rulemakings and priority retrospective reviews of existing regulations. We update most of the site at the beginning of each month, though some data is updated more frequently if it is time sensitive. The information on this site is not intended to and does not commit EPA to specific conclusions or actions. For example, after further analysis, EPA may decide the effects of a rule would be different or it may decide to terminate a rulemaking.

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