Nanoscale Materials; Notice of Public Meeting, 24574-24576 [05-9324]

Download as PDF 24574 Federal Register / Vol. 70, No. 89 / Tuesday, May 10, 2005 / Notices associations between respiratory health conditions and long-term exposures to ambient air pollutants in the study community. The epidemiologic analysis will examine the association of air quality parameters with a higher prevalence of respiratory conditions, with lower lung function, or with higher levels of exhaled nitric oxide after appropriate control for other determinants of respiratory health. An agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB control number. The OMB control numbers for EPA’s regulations in 40 CFR are listed in 40 CFR part 9 and are identified on the form and/or instrument, if applicable. Burden Statement: The annual public reporting and recordkeeping burden for this collection of information is 0.4 hours per parent questionnaire and 0.75 hours per set of child respiratory health measures. This survey will not be repeated. Burden means the total time, effort, or financial resources expended by persons to generate, maintain, retain, or disclose or provide information to or for a Federal agency. This includes the time needed to review instructions; develop, acquire, install, and utilize technology and systems for the purposes of collecting, validating, and verifying information, processing and maintaining information, and disclosing and providing information; adjust the existing ways to comply with any previously applicable instructions and requirements; train personnel to be able to respond to a collection of information; search data sources; complete and review the collection of information; and transmit or otherwise disclose the information. Respondents/Affected Entities: Entities potentially affected by this action are school officials, parents and children in the Detroit and Dearborn Public Schools. Estimated Number of Respondents: 18,500. Frequency of Response: Once. Estimated Total Annual Hour Burden: 8,250 hours. Estimated Total Annual Cost: $113,468, includes $0 annualized capital or O&M costs and $113,468 in Labor costs. Dated: May 3, 2005. Oscar Morales, Director, Collection Strategies Division. [FR Doc. 05–9319 Filed 5–9–05; 8:45 am] BILLING CODE 6560–50–P VerDate jul<14>2003 16:17 May 09, 2005 Jkt 205001 ENVIRONMENTAL PROTECTION AGENCY [OPPT–2004–0122; FRL–7700–7] Nanoscale Materials; Notice of Public Meeting Environmental Protection Agency (EPA). ACTION: Notice. AGENCY: SUMMARY: EPA will conduct a public meeting on nanoscale materials to discuss a potential voluntary pilot program for certain nanoscale materials and the information needed to adequately inform the conduct of the pilot program. Nanoscale materials are chemical substances containing structures in the length scale of approximately 1 to 100 nanometers, and may have different molecular organizations and properties than the same chemical substances in a larger size. Some of the nanoscale materials are new chemical substances subject to notification requirements under section 5 of the Toxic Substances Control Act (TSCA) and, therefore, are subject to review for potential human health and environmental risks before they are manufactured and enter commerce. Other nanoscale materials are existing chemical substances that may enter commerce without notification to EPA. EPA is considering a potential voluntary pilot program for such nanoscale materials. To that end, EPA is requesting comments at the public meeting on: (1) The scope and purpose of a voluntary pilot program for nanoscale materials that are existing chemical substances, (2) kinds of information that are relevant to the evaluation of potential risks from exposure to nanoscale materials, (3) chemical characterization and nomenclature of nanoscale materials for regulatory purposes, and (4) identification of interested stakeholders. These comments will inform EPA on possible approaches to protect human health and the environment from exposure to such chemical substances. DATES: The meeting will be held on June 23, 2005, from 9 a.m. to 5 p.m. Requests to provide oral comments at the meeting must be received in writing by the technical person listed under FOR FURTHER INFORMATION CONTACT: before June 9, 2005. Please note that time for oral comments may be limited, depending on the number of requests received. Requests to attend the meeting may be submitted to the technical person listed under FOR FURTHER INFORMATION CONTACT: by June 16, 2005. Please note PO 00000 Frm 00077 Fmt 4703 Sfmt 4703 that this advance request will assist in planning adequate seating; however, members of the public can attend without prior notification to the technical person. Requests for special accommodations may be submitted to the technical person by June 16, 2005. Written comments, identified by docket identification (ID) number OPPT–2004–0122, may be submitted to the docket at any time before the meeting date. The meeting will be held at the Washington Plaza, 10 Thomas Circle NW., Washington, DC 20005. ADDRESSES: For general information contact: Colby Lintner, Regulatory Coordinator, Environmental Assistance Division (7408M), Office of Pollution Prevention and Toxics, Environmental Protection Agency, 1200 Pennsylvania Ave., NW., Washington, DC 20460–0001; telephone number: (202) 554–1404; e-mail address:TSCA-Hotline@epa.gov. For technical information contact: Flora Chow, Chemical Control Division (7405M), Office of Pollution Prevention and Toxics, Environmental Protection Agency, 1200 Pennsylvania Ave., NW., Washington, DC 20460–0001; telephone number: (202) 564–8983; e-mail address:chow.flora@epa.gov. FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: I. General Information A. Does this Action Apply to Me? This action is directed to the public in general, and may be of particular interest to those persons who manufacture, import, process, or use nanoscale materials that are chemical substances subject to TSCA jurisdiction. Potentially affected entities may include, but are not limited to: • Chemical manufacturers (NAICS 325), e.g., persons manufacturing, importing, processing, or using chemicals for commercial purposes. • Petroleum and coal product industries (NAICS 324), e.g., persons manufacturing, importing, processing, or using chemicals for commercial purposes. Since other entities may also be interested, the Agency has not attempted to describe all the specific entities that may have an interest in this matter. If you have any questions regarding the applicability of this action to a particular entity, consult the technical person listed under FOR FURTHER INFORMATION CONTACT. E:\FR\FM\10MYN1.SGM 10MYN1 Federal Register / Vol. 70, No. 89 / Tuesday, May 10, 2005 / Notices B. How Can I Get Copies of this Document and Other Related Information? 1. Docket. EPA has established an official public docket for this action under docket ID number OPPT–2004– 0122. The official public docket consists of the documents specifically referenced in this action, any public comments received, and other information related to this action. Although, a part of the official docket, the public docket does not include Confidential Business Information (CBI) or other information whose disclosure is restricted by statute. The official public docket is the collection of materials that is available for public viewing at the EPA Docket Center, Rm. B–102 Reading Room, EPA West, 1301 Constitution Ave., NW., Washington, DC. The EPA Docket Center is open from 8:30 a.m. to 4:30 p.m., Monday through Friday, excluding legal holidays. The EPA docket center reading room telephone number is (202) 566–1744 and the telephone number for the OPPT Docket, which is located in EPA Docket Center, is (202) 566–0280. 2. Electronic access. You may access this Federal Register document electronically through the EPA Internet under the ‘‘Federal Register listings athttps://www.epa.gov/fedrgstr/. An electronic version of the public docket is available through EPA’s electronic public docket and comment system, EPA Dockets. You may use EPA Dockets athttps://www.epa.gov/edocket/ to submit or view public comments, access the index listing of the contents of the official public docket, and to access those documents in the public docket that are available electronically. Although, not all docket materials may be available electronically, you may still access any of the publicly available docket materials through the docket facility identified in Unit I.B.1. Once in the system, select ‘‘search,’’ then key in the appropriate docket ID number. II. Background About two decades ago, research indicated that certain nanoscale materials exhibit unexpectedly unique and novel properties. The existence of structures at the nanoscale level may confer a distinct set of physical, chemical, and biological properties. EPA is interested in whether commercial activities of nanoscale materials may present a potential risk to human health and the environment because of their unique physical structure and consequent properties. Available information on potential hazards and exposures is limited (Refs. 1 and 2). Therefore, EPA is considering VerDate jul<14>2003 16:17 May 09, 2005 Jkt 205001 how best to evaluate the risks associated with nanoscale materials and how to manage those risks. TSCA is often viewed as a regulatory gap filler, which is intended to provide regulatory and information collection authority lacking in some other environmental statutes (Refs. 3, 4, and 5). TSCA applies to chemical substances and mixtures. The term ‘‘chemical substance’’ means any organic or inorganic substance of a particular molecular identity. The term specifically excludes: Pesticides; tobacco or tobacco products; certain nuclear materials; firearms and ammunition; food; food additives; drugs; cosmetics; and medical devices. Chemical substances when used in these other categories fall under the jurisdiction of other federal laws. Among TSCA’s regulatory tools are reporting requirements that apply prior to manufacture or import of any new chemical substance, and the ability of EPA to regulate a substance prior to commencement of manufacture if it appears that it may involve unreasonable risk of injury to health or the environment. A chemical substance is ‘‘new’’ if it is not on the TSCA Chemical Substance Inventory (the TSCA Inventory), EPA’s official list of existing chemical substances. Therefore, a chemical substance that is a nanoscale material not on the TSCA Inventory (i.e., a new chemical substance) must be reported to EPA in a premanufacture notification (PMN) under section 5 of TSCA before commercial activities are allowed. EPA has authority under section 5 to review potential health and environmental risks of all aspects of the commercial activities (Ref. 3). Once a new chemical substance completes the PMN process and has been listed on the TSCA Inventory, the chemical substance is considered to be an existing chemical substance. A chemical substance that is a nanoscale material on the TSCA inventory (i.e., an existing chemical substance), absent other requirements, is not subject to EPA review prior to manufacture or use. Existing chemical substances that present an unreasonable risk of injury to human health or the environment may be regulated under section 6 of TSCA (Ref. 3). Because currently available chemical representation and nomenclature conventions may not be adequate for some nanoscale materials, ambiguity exists regarding how and when to distinguish nanoscale materials as new or existing chemical substances. In the current state of development of structural characterization upon which nomenclature conventions are based, issues remain. PO 00000 Frm 00078 Fmt 4703 Sfmt 4703 24575 In addition to regulatory tools, EPA engages in voluntary partnerships with the chemical industry and other stakeholders to facilitate risk reduction activities. These activities are generally less resource intensive and offer more flexible approaches to management of potential risks. Recent examples of voluntary programs on existing chemicals are the High Production Volume (HPV) Challenge Program and the Voluntary Children’s Chemical Evaluation Program (VCCEP). Both programs are designed to provide information on certain groups of chemicals. Evaluation of this information will enable a better public understanding of potential hazards and exposures. EPA is considering a pilot program of voluntary reporting of information pertaining to nanoscale materials that are existing chemical substances. Information derived from a pilot program will allow EPA and the affected industry to better understand the issues with respect to potential risks and for EPA to gain experience in the evaluation of such types of chemical substances. EPA expects that the following parameters will be important in the context of a potential voluntary pilot program to provide information on nanoscale materials. • What should be the scope of a voluntary pilot program? • What information should be included in a voluntary pilot program? What other pertinent information regarding the properties of the particular nanoscale material would be relevant to EPA review? • How long should a voluntary pilot program last? • How should participants in the voluntary pilot program be identified? • What should trigger a voluntary submission under the pilot program? • How likely would it be for companies to volunteer for such a program? What could be the incentive structure to encourage participation? • Should participation in a voluntary pilot program have TSCA Inventory consequences? A voluntary pilot program would not affect the TSCA Inventory status of a nanoscale material that is an existing chemical substance. As indicated previously, nanoscale materials that are not listed on the TSCA Inventory are considered new chemical substances. These new chemical substances require the submission of a PMN before they can be manufactured or used for commercial purposes. E:\FR\FM\10MYN1.SGM 10MYN1 24576 Federal Register / Vol. 70, No. 89 / Tuesday, May 10, 2005 / Notices III. Issues for EPA and stakeholders In general, EPA is requesting comments on the following issues: (1) The scope and purpose of a voluntary pilot program for nanoscale materials that are existing chemical substances, (2) kinds of information that are relevant to the evaluation of potential risks from exposure to nanoscale materials, (3) chemical characterization and nomenclature of nanoscale materials for regulatory purposes, and (4) identification of interested stakeholders. Comments in these specific areas will be particularly helpful: • Feasibility and value of a voluntary pilot program. • Scope and design of a voluntary pilot program, including elements such as: purpose (e.g., R & D, use involving environmental release, any commercial use), administration, outcomes, duration, and next steps. • Information that would be useful in the evaluation of potential effects on human health and the environment from exposure to nanoscale materials. • Size, dimensions, and shapes of chemical substances that should be considered nanoscale materials. • Types of information (e.g., unique and novel properties) that would be useful to provide for purposes of: informing the voluntary pilot program; and helping to name and characterize nanoscale materials (including features to distinguish them from otherwise similar chemical substances that do not involve nanoscale structures). • Manufacturing processes for nanoscale materials and how they relate to identities of the products from the nanoscale manufacturing processes. • Identification of interested stakeholders. IV. References The following references have been placed in the official docket that was established under docket ID number OPPT–2004–0122 for this action as indicated in Unit I.B.2. 1. Aitken, R.J., Creely, K.S., Tran, C.L. 2004. Nanoparticles: An Occupational Hygiene Review. Suffolk, U.K.: Health and Safety Executive, Research Report 274. 2. VDI Technologiezentrum GmbH. 2004. Industrial Application of Nanomaterials - Chances and Risks. Technology Analysis. Luther W, ed. Dusseldorf, Germany: Future Technologies No. 54. 3. USEPA. 2005. Considerations Relevant to Toxic Substances Control Act (TSCA) Application to Nanoscale Materials. Office of Prevention, Pesticides and Toxic Substances. Office of Pollution Prevention and Toxics. VerDate jul<14>2003 16:17 May 09, 2005 Jkt 205001 4. Federal Register. June 3, 2003. TSCA Section 8(e): Notification of Substantial Risk; Policy Clarification and Reporting Guidance. 68 FR 33129. 5. Federal Register. January 12, 2005. TSCA Section 8(e) Reporting Guidance; Correction, Clarification of Applicability, and Announcement Regarding the Issuance Questions and Answers. 70 FR 2162. C. New Business—Regulations • Capital Adequacy Risk-Weighting Revisions—Final Rule Dated: May 5, 2005. James M. Morris, Acting Secretary, Farm Credit Administration Board. [FR Doc. 05–9426 Filed 5–6–05; 2:19 pm] BILLING CODE 6705–01–P List of Subjects Environmental protection, Chemicals, Hazardous substances, Nanotechnology, Nanoscale materials. Dated: April 25, 2005. Susan B. Hazen, Assistant Administrator for Prevention, Pesticides and Toxic Substances. [FR Doc. 05–9324 Filed 5–9–05; 8:45 am] BILLING CODE 6560–50–S FARM CREDIT ADMINISTRATION Sunshine Act Notice; Farm Credit Administration Board; Regular Meeting AGENCY: Farm Credit Administration. SUMMARY: Notice is hereby given, pursuant to the Government in the Sunshine Act (5 U.S.C. 552b(e)(3)), of the regular meeting of the Farm Credit Administration Board (Board). DATE AND TIME: The regular meeting of the Board will be held at the offices of the Farm Credit Administration in McLean, Virginia, on May 12, 2005, from 9 a.m. until such time as the Board concludes its business. FOR FURTHER INFORMATION CONTACT: Jeanette C. Brinkley, Secretary to the Farm Credit Administration Board, (703) 883–4009, TTY (703) 883–4056. ADDRESSES: Farm Credit Administration, 1501 Farm Credit Drive, McLean, Virginia 22102–5090. SUPPLEMENTARY INFORMATION: This meeting of the Board will be open to the public (limited space available). In order to increase the accessibility to Board meetings, persons requiring assistance should make arrangements in advance. The matters to be considered at the meeting are: Open Session A. Approval of Minutes • April 14, 2005 (Open and Closed) B. Reports • Corporate/Non-Corporate Report • Risk Profile of U.S. Agriculture • Risk Profile of the Farm Credit System PO 00000 Frm 00079 Fmt 4703 Sfmt 4703 FEDERAL FINANCIAL INSTITUTIONS EXAMINATION COUNCIL Interagency Advisory on the Unsafe and Unsound Use of Limitation of Liability Provisions and Certain Alternative Dispute Resolution Provisions in External Audit Engagement Letters Federal Financial Institutions Examination Council. ACTION: Proposed interagency advisory; request for comment. AGENCY: SUMMARY: The Federal Financial Institutions Examination Council (FFIEC), on behalf of the Office of Thrift Supervision (OTS), Treasury; the Board of Governors of the Federal Reserve System (Board); the Federal Deposit Insurance Corporation (FDIC); the National Credit Union Administration (NCUA); and the Office of the Comptroller of the Currency (OCC), Treasury (collectively, the Agencies), is seeking public comment on a proposed Interagency Advisory on the Unsafe and Unsound Use of Limitation of Liability Provisions and Certain Alternative Dispute Resolution Provisions in External Audit Engagement Letters. The proposal advises financial institutions’ boards of directors, audit committees, and management that they should ensure that they do not enter any agreement that contains external auditor limitation of liability provisions with respect to financial statement audits. DATES: Comments must be received on or before June 9, 2005. ADDRESSES: Comments should be directed to: FFIEC, Program Coordinator, 3501Fairfax Drive, Room 3086, Arlington, VA 22226; by e-mail to FFIEC-Comments@fdic.gov; or by fax to (703) 516–5487. Comments will be available for public inspection during regular business hours at the above address. Appointments to inspect comments are encouraged and can be arranged by calling the FFIEC at (703) 516–5588. FOR FURTHER INFORMATION CONTACT: OTS: Jeffrey J. Geer, Chief Accountant, at jeffrey.geer@ots.treas.gov or (202) 906–6363; or Patricia E:\FR\FM\10MYN1.SGM 10MYN1

Agencies

[Federal Register Volume 70, Number 89 (Tuesday, May 10, 2005)]
[Notices]
[Pages 24574-24576]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 05-9324]


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ENVIRONMENTAL PROTECTION AGENCY

[OPPT-2004-0122; FRL-7700-7]


Nanoscale Materials; Notice of Public Meeting

AGENCY: Environmental Protection Agency (EPA).

ACTION: Notice.

-----------------------------------------------------------------------

SUMMARY: EPA will conduct a public meeting on nanoscale materials to 
discuss a potential voluntary pilot program for certain nanoscale 
materials and the information needed to adequately inform the conduct 
of the pilot program. Nanoscale materials are chemical substances 
containing structures in the length scale of approximately 1 to 100 
nanometers, and may have different molecular organizations and 
properties than the same chemical substances in a larger size. Some of 
the nanoscale materials are new chemical substances subject to 
notification requirements under section 5 of the Toxic Substances 
Control Act (TSCA) and, therefore, are subject to review for potential 
human health and environmental risks before they are manufactured and 
enter commerce. Other nanoscale materials are existing chemical 
substances that may enter commerce without notification to EPA. EPA is 
considering a potential voluntary pilot program for such nanoscale 
materials. To that end, EPA is requesting comments at the public 
meeting on: (1) The scope and purpose of a voluntary pilot program for 
nanoscale materials that are existing chemical substances, (2) kinds of 
information that are relevant to the evaluation of potential risks from 
exposure to nanoscale materials, (3) chemical characterization and 
nomenclature of nanoscale materials for regulatory purposes, and (4) 
identification of interested stakeholders. These comments will inform 
EPA on possible approaches to protect human health and the environment 
from exposure to such chemical substances.

DATES: The meeting will be held on June 23, 2005, from 9 a.m. to 5 p.m.
    Requests to provide oral comments at the meeting must be received 
in writing by the technical person listed under FOR FURTHER INFORMATION 
CONTACT: before June 9, 2005. Please note that time for oral comments 
may be limited, depending on the number of requests received.
    Requests to attend the meeting may be submitted to the technical 
person listed under FOR FURTHER INFORMATION CONTACT: by June 16, 2005. 
Please note that this advance request will assist in planning adequate 
seating; however, members of the public can attend without prior 
notification to the technical person. Requests for special 
accommodations may be submitted to the technical person by June 16, 
2005.
    Written comments, identified by docket identification (ID) number 
OPPT-2004-0122, may be submitted to the docket at any time before the 
meeting date.

ADDRESSES: The meeting will be held at the Washington Plaza, 10 Thomas 
Circle NW., Washington, DC 20005.

FOR FURTHER INFORMATION CONTACT: For general information contact: Colby 
Lintner, Regulatory Coordinator, Environmental Assistance Division 
(7408M), Office of Pollution Prevention and Toxics, Environmental 
Protection Agency, 1200 Pennsylvania Ave., NW., Washington, DC 20460-
0001; telephone number: (202) 554-1404; e-mail address:TSCA-
Hotline@epa.gov.
    For technical information contact: Flora Chow, Chemical Control 
Division (7405M), Office of Pollution Prevention and Toxics, 
Environmental Protection Agency, 1200 Pennsylvania Ave., NW., 
Washington, DC 20460-0001; telephone number: (202) 564-8983; e-mail 
address:chow.flora@epa.gov.

SUPPLEMENTARY INFORMATION:

I. General Information

A. Does this Action Apply to Me?

    This action is directed to the public in general, and may be of 
particular interest to those persons who manufacture, import, process, 
or use nanoscale materials that are chemical substances subject to TSCA 
jurisdiction. Potentially affected entities may include, but are not 
limited to:
     Chemical manufacturers (NAICS 325), e.g., persons 
manufacturing, importing, processing, or using chemicals for commercial 
purposes.
     Petroleum and coal product industries (NAICS 324), e.g., 
persons manufacturing, importing, processing, or using chemicals for 
commercial purposes.
    Since other entities may also be interested, the Agency has not 
attempted to describe all the specific entities that may have an 
interest in this matter. If you have any questions regarding the 
applicability of this action to a particular entity, consult the 
technical person listed under FOR FURTHER INFORMATION CONTACT.

[[Page 24575]]

B. How Can I Get Copies of this Document and Other Related Information?

    1. Docket. EPA has established an official public docket for this 
action under docket ID number OPPT-2004-0122. The official public 
docket consists of the documents specifically referenced in this 
action, any public comments received, and other information related to 
this action. Although, a part of the official docket, the public docket 
does not include Confidential Business Information (CBI) or other 
information whose disclosure is restricted by statute. The official 
public docket is the collection of materials that is available for 
public viewing at the EPA Docket Center, Rm. B-102 Reading Room, EPA 
West, 1301 Constitution Ave., NW., Washington, DC. The EPA Docket 
Center is open from 8:30 a.m. to 4:30 p.m., Monday through Friday, 
excluding legal holidays. The EPA docket center reading room telephone 
number is (202) 566-1744 and the telephone number for the OPPT Docket, 
which is located in EPA Docket Center, is (202) 566-0280.
    2. Electronic access. You may access this Federal Register document 
electronically through the EPA Internet under the ``Federal Register 
listings athttps://www.epa.gov/fedrgstr/. An electronic version of the 
public docket is available through EPA's electronic public docket and 
comment system, EPA Dockets. You may use EPA Dockets athttps://
www.epa.gov/edocket/ to submit or view public comments, access the 
index listing of the contents of the official public docket, and to 
access those documents in the public docket that are available 
electronically. Although, not all docket materials may be available 
electronically, you may still access any of the publicly available 
docket materials through the docket facility identified in Unit I.B.1. 
Once in the system, select ``search,'' then key in the appropriate 
docket ID number.

II. Background

    About two decades ago, research indicated that certain nanoscale 
materials exhibit unexpectedly unique and novel properties. The 
existence of structures at the nanoscale level may confer a distinct 
set of physical, chemical, and biological properties.
    EPA is interested in whether commercial activities of nanoscale 
materials may present a potential risk to human health and the 
environment because of their unique physical structure and consequent 
properties. Available information on potential hazards and exposures is 
limited (Refs. 1 and 2). Therefore, EPA is considering how best to 
evaluate the risks associated with nanoscale materials and how to 
manage those risks. TSCA is often viewed as a regulatory gap filler, 
which is intended to provide regulatory and information collection 
authority lacking in some other environmental statutes (Refs. 3, 4, and 
5). TSCA applies to chemical substances and mixtures. The term 
``chemical substance'' means any organic or inorganic substance of a 
particular molecular identity. The term specifically excludes: 
Pesticides; tobacco or tobacco products; certain nuclear materials; 
firearms and ammunition; food; food additives; drugs; cosmetics; and 
medical devices. Chemical substances when used in these other 
categories fall under the jurisdiction of other federal laws.
    Among TSCA's regulatory tools are reporting requirements that apply 
prior to manufacture or import of any new chemical substance, and the 
ability of EPA to regulate a substance prior to commencement of 
manufacture if it appears that it may involve unreasonable risk of 
injury to health or the environment. A chemical substance is ``new'' if 
it is not on the TSCA Chemical Substance Inventory (the TSCA 
Inventory), EPA's official list of existing chemical substances. 
Therefore, a chemical substance that is a nanoscale material not on the 
TSCA Inventory (i.e., a new chemical substance) must be reported to EPA 
in a premanufacture notification (PMN) under section 5 of TSCA before 
commercial activities are allowed. EPA has authority under section 5 to 
review potential health and environmental risks of all aspects of the 
commercial activities (Ref. 3). Once a new chemical substance completes 
the PMN process and has been listed on the TSCA Inventory, the chemical 
substance is considered to be an existing chemical substance. A 
chemical substance that is a nanoscale material on the TSCA inventory 
(i.e., an existing chemical substance), absent other requirements, is 
not subject to EPA review prior to manufacture or use. Existing 
chemical substances that present an unreasonable risk of injury to 
human health or the environment may be regulated under section 6 of 
TSCA (Ref. 3). Because currently available chemical representation and 
nomenclature conventions may not be adequate for some nanoscale 
materials, ambiguity exists regarding how and when to distinguish 
nanoscale materials as new or existing chemical substances. In the 
current state of development of structural characterization upon which 
nomenclature conventions are based, issues remain.
    In addition to regulatory tools, EPA engages in voluntary 
partnerships with the chemical industry and other stakeholders to 
facilitate risk reduction activities. These activities are generally 
less resource intensive and offer more flexible approaches to 
management of potential risks. Recent examples of voluntary programs on 
existing chemicals are the High Production Volume (HPV) Challenge 
Program and the Voluntary Children's Chemical Evaluation Program 
(VCCEP). Both programs are designed to provide information on certain 
groups of chemicals. Evaluation of this information will enable a 
better public understanding of potential hazards and exposures.
    EPA is considering a pilot program of voluntary reporting of 
information pertaining to nanoscale materials that are existing 
chemical substances. Information derived from a pilot program will 
allow EPA and the affected industry to better understand the issues 
with respect to potential risks and for EPA to gain experience in the 
evaluation of such types of chemical substances.
    EPA expects that the following parameters will be important in the 
context of a potential voluntary pilot program to provide information 
on nanoscale materials.
     What should be the scope of a voluntary pilot program?
     What information should be included in a voluntary pilot 
program? What other pertinent information regarding the properties of 
the particular nanoscale material would be relevant to EPA review?
     How long should a voluntary pilot program last?
     How should participants in the voluntary pilot program be 
identified?
     What should trigger a voluntary submission under the pilot 
program?
     How likely would it be for companies to volunteer for such 
a program? What could be the incentive structure to encourage 
participation?
     Should participation in a voluntary pilot program have 
TSCA Inventory consequences? A voluntary pilot program would not affect 
the TSCA Inventory status of a nanoscale material that is an existing 
chemical substance. As indicated previously, nanoscale materials that 
are not listed on the TSCA Inventory are considered new chemical 
substances. These new chemical substances require the submission of a 
PMN before they can be manufactured or used for commercial purposes.

[[Page 24576]]

III. Issues for EPA and stakeholders

    In general, EPA is requesting comments on the following issues: (1) 
The scope and purpose of a voluntary pilot program for nanoscale 
materials that are existing chemical substances, (2) kinds of 
information that are relevant to the evaluation of potential risks from 
exposure to nanoscale materials, (3) chemical characterization and 
nomenclature of nanoscale materials for regulatory purposes, and (4) 
identification of interested stakeholders. Comments in these specific 
areas will be particularly helpful:
     Feasibility and value of a voluntary pilot program.
     Scope and design of a voluntary pilot program, including 
elements such as: purpose (e.g., R & D, use involving environmental 
release, any commercial use), administration, outcomes, duration, and 
next steps.
     Information that would be useful in the evaluation of 
potential effects on human health and the environment from exposure to 
nanoscale materials.
     Size, dimensions, and shapes of chemical substances that 
should be considered nanoscale materials.
     Types of information (e.g., unique and novel properties) 
that would be useful to provide for purposes of: informing the 
voluntary pilot program; and helping to name and characterize nanoscale 
materials (including features to distinguish them from otherwise 
similar chemical substances that do not involve nanoscale structures).
     Manufacturing processes for nanoscale materials and how 
they relate to identities of the products from the nanoscale 
manufacturing processes.
     Identification of interested stakeholders.

IV. References

     The following references have been placed in the official docket 
that was established under docket ID number OPPT-2004-0122 for this 
action as indicated in Unit I.B.2.
    1. Aitken, R.J., Creely, K.S., Tran, C.L. 2004. Nanoparticles: An 
Occupational Hygiene Review. Suffolk, U.K.: Health and Safety 
Executive, Research Report 274.
    2. VDI Technologiezentrum GmbH. 2004. Industrial Application of 
Nanomaterials - Chances and Risks. Technology Analysis. Luther W, ed. 
Dusseldorf, Germany: Future Technologies No. 54.
    3. USEPA. 2005. Considerations Relevant to Toxic Substances Control 
Act (TSCA) Application to Nanoscale Materials. Office of Prevention, 
Pesticides and Toxic Substances. Office of Pollution Prevention and 
Toxics.
    4. Federal Register. June 3, 2003. TSCA Section 8(e): Notification 
of Substantial Risk; Policy Clarification and Reporting Guidance. 68 FR 
33129.
    5. Federal Register. January 12, 2005. TSCA Section 8(e) Reporting 
Guidance; Correction, Clarification of Applicability, and Announcement 
Regarding the Issuance Questions and Answers. 70 FR 2162.

List of Subjects

    Environmental protection, Chemicals, Hazardous substances, 
Nanotechnology, Nanoscale materials.

    Dated: April 25, 2005.
Susan B. Hazen,
Assistant Administrator for Prevention, Pesticides and Toxic 
Substances.

[FR Doc. 05-9324 Filed 5-9-05; 8:45 am]
BILLING CODE 6560-50-S
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