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 Environmental Protection Agency 40 CFR Parts 9 and 721
[EPA-HQ-OPPT-2016-0207; FRL-9966-84]
RIN 2070-AB27
 AGENCY: Environmental Protection Agency (EPA).
 ACTION: Final rule.
 SUMMARY: EPA is finalizing a significant new use rule (SNUR) under section 5(a)(2) of the Toxic Substances Control Act (TSCA) for the chemical substance identified generically as bimodal mixture consisting of multi-walled carbon nanotubes and other classes of carbon nanotubes, which was the subject of premanufacture notice (PMN) P-11-482. This action requires persons who intend to manufacture (defined by statute to include import) or process the chemical substance for a use that is designated as a significant new use by this final rule to notify EPA at least 90 days before commencing that activity. The required notification initiates EPA's evaluation of the intended use within the applicable review period. Manufacture and processing for the significant new use is unable to commence until EPA has conducted a 
                        ( print page 45991)
                        review of the notice, made an appropriate determination on the notice, and take such actions as are required with that determination. The required notification would provide EPA with the opportunity to evaluate the intended use and, if necessary, to prohibit or limit that activity before it occurs.
 DATES: This final rule is effective November 2, 2017.
 ADDRESSES: EPA has established a docket for this action under docket identification (ID) number EPA-HQ-OPPT-2016-0207. All documents in the docket are listed in the docket index available at 
                        *http://www.regulations.gov.*
                         Although listed in the index, some information is not publicly available, 
                        *e.g.,*
                         Confidential Business Information (CBI) or other information whose disclosure is restricted by statute. Certain other material, such as copyrighted material, is not placed on the Internet and will be publicly available only in hard copy form. Publicly available docket materials are available in the electronic docket at 
                        *http://www.regulations.gov,*
                         or, if only available in hard copy, at the OPPT Docket. The OPPT Docket is located in the EPA Docket Center (EPA/DC) at Rm. 3334, EPA West Bldg., 1301 Constitution Ave. NW., Washington, DC. The EPA/DC Public Reading Room hours of operation are 8:30 a.m. to 4:30 p.m., Monday through Friday, excluding legal holidays. The telephone number of the EPA/DC Public Reading Room is (202) 566-1744, and the telephone number for the OPPT Docket is (202) 566-0280. Docket visitors are required to show photographic identification, pass through a metal detector, and sign the EPA visitor log. All visitor bags are processed through an X-ray machine and subject to search. Visitors will be provided an EPA/DC badge that must be visible at all times in the building and returned upon departure.
 FOR FURTHER INFORMATION CONTACT:  *For technical information contact:*
                         Kenneth Moss, Chemical Control Division (7405M), Office of Pollution Prevention and Toxics, Environmental Protection Agency, 1200 Pennsylvania Ave. NW., Washington, DC 20460-0001; telephone number: (202) 564-9232; email address: 
                        *moss.kenneth@epa.gov.* *For general information contact:*
                         The TSCA-Hotline, ABVI-Goodwill, 422 South Clinton Ave., Rochester, NY 14620; telephone number: (202) 554-1404; email address: 
                        *TSCA-Hotline@epa.gov.*


SUPPLEMENTARY INFORMATION:  I. General Information A. Does this action apply to me? You may be potentially affected by this action if you manufacture, process, or use the chemical substance identified generically as bimodal mixture consisting of multi-walled carbon nanotubes and other classes of carbon nanotubes (PMN P-11-482). The following list of North American Industrial Classification System (NAICS) codes is not intended to be exhaustive, but rather provides a guide to help readers determine whether this document applies to them. Potentially affected entities may include, but are not limited to: Manufacturers (including importers) or processors of the subject chemical substance (NAICS codes 325 and 324110), 
                    *e.g.,*
                     chemical manufacturing and petroleum refineries. This action may also affect certain entities through pre-existing import certification and export notification rules under TSCA. Chemical importers are subject to the TSCA section 13 (15 U.S.C. 2612) import certification requirements promulgated at 19 CFR 12.118 through 12.127, and 19 CFR 127.28. Chemical importers must certify that the shipment of the chemical substance complies with all applicable rules and orders under TSCA. Importers of chemicals subject to a SNUR must certify their compliance with the SNUR requirements. The EPA policy in support of import certification appears at 40 CFR part 707, subpart B. In addition, any persons who export or intend to export the chemical substance that is the subject of a proposed or final SNUR are subject to the export notification provisions of TSCA section 12(b) (15 U.S.C. 2611(b)) (see § 721.20), and must comply with the export notification requirements in 40 CFR part 707, subpart D. II. Background A. What action is the Agency taking? EPA is finalizing a SNUR for the chemical substance identified generically as bimodal mixture consisting of multi-walled carbon nanotubes and other classes of carbon nanotubes (PMN P-11-482). This final action requires persons who intend to manufacture or process the chemical substance for an activity that is designated as a significant new use by this final rule to notify EPA at least 90 days before commencing that activity. In the 
                    **Federal Register**
                     of June 8, 2017 (79 FR 26644) (FRL-9959-37), EPA proposed a SNUR for this chemical substance that was the subject of P-11-482. EPA received no comments to the proposed SNUR and is finalizing the SNUR as proposed. See the proposed SNUR for details and the basis of the proposed SNUR. B. What is the Agency's authority for taking this action? Section 5(a)(2) of TSCA (15 U.S.C. 2604(a)(2)) authorizes EPA to determine that a use of a chemical substance is a “significant new use.” EPA must make this determination by rule after considering all relevant factors, including the four bulleted TSCA section 5(a)(2) factors listed in Unit III of this document. Once EPA determines that a use of a chemical substance is a significant new use, TSCA section 5(a)(1)(B) requires persons to submit a significant new use notice (SNUN) to EPA at least 90 days before they manufacture, import, or process the chemical substance for that use (15 U.S.C. 2604(a)(1)(B)(i)). TSCA furthermore prohibits such manufacturing or processing from commencing until EPA has conducted a review of the notice, made an appropriate determination on the notice, and taken such actions as are required in association with that determination (15 U.S.C. 2604(a)(1)(B)(ii)). As described in Unit V., the general SNUR provisions are found at 40 CFR part 721, subpart A. Persons who must report are described in § 721.5. C. Applicability of General Provisions General provisions for SNURs appear in 40 CFR part 721, subpart A. These provisions describe persons subject to the rule, recordkeeping requirements, exemptions to reporting requirements, and applicability of the rule to uses occurring before the effective date of the final rule. Provisions relating to user fees appear at 40 CFR part 700. According to § 721.1(c), persons subject to these SNURs must comply with the same SNUN requirements and EPA regulatory procedures as submitters of PMNs under TSCA section 5(a)(1)(A). In particular, these requirements include the information submission requirements of TSCA section 5(b) and 5(d)(1), the exemptions authorized by TSCA section 5(h)(1), (h)(2), (h)(3), and (h)(5), and the regulations at 40 CFR part 720. Once EPA receives a SNUN, EPA must either determine that the significant new use is not likely to present an unreasonable risk of injury or take such regulatory action as is associated with an alternative determination before the manufacture or processing for the significant new use can commence. If EPA determines that the significant new use is not likely to 
                    ( print page 45992)
                    present an unreasonable risk, EPA is required under TSCA section 5(g) to make public, and submit for publication in the 
                    **Federal Register**
                    , a statement of EPA's findings. III. Significant New Use Determination Section 5(a)(2) of TSCA states that EPA's determination that a use of a chemical substance is a significant new use must be made after consideration of all relevant factors, including: The projected volume of manufacturing and processing of a chemical substance.
                The extent to which a use changes the type or form of exposure of human beings or the environment to a chemical substance.
                The extent to which a use increases the magnitude and duration of exposure of human beings or the environment to a chemical substance.
                The reasonably anticipated manner and methods of manufacturing, processing, distribution in commerce, and disposal of a chemical substance. In addition to these factors enumerated in TSCA section 5(a)(2), the statute authorizes EPA to consider any other relevant factors. To determine what would constitute a significant new use for the chemical substance identified generically as bimodal mixture consisting of multi-walled carbon nanotubes and other classes of carbon nanotubes (PMN P-11-482), EPA considered relevant information about the toxicity of the chemical substance, likely human exposures and environmental releases associated with possible uses, and the four bulleted TSCA section 5(a)(2) factors listed in this unit. IV. Rationale and Objectives for the Rule A. Rationale During review of the PMN P-11-482, the chemical substance identified generically as bimodal mixture consisting of multi-walled carbon nanotubes and other classes of carbon nanotubes, EPA concluded that one or more of the criteria of concern established at § 721.170 were met. For additional discussion on this chemical substance, see Unit II. of this rule. B. Objectives EPA is issuing this SNUR for a specific chemical substance which has undergone premanufacture review because the Agency wants to achieve the following objectives with regard to the significant new uses designated in this rule: EPA will receive notice of any person's intent to manufacture or process a TSCA Chemical Substance Inventory (TSCA Inventory) listed chemical substance for the described significant new use before that activity begins.
                EPA will have an opportunity to review and evaluate data submitted in a SNUN before the notice submitter begins manufacturing or processing a listed chemical substance for the described significant new use.
                EPA will be able to either determine that the prospective manufacture or processing is not likely to present an unreasonable risk, or to take necessary regulatory action associated with any other determination, before the described significant new use of the chemical substance occurs.
                EPA will ensure that all manufacturers and processors of the same chemical substance that is subject to a TSCA section 5(e) consent order are subject to similar requirements. Issuance of a SNUR for a chemical substance does not signify that the chemical substance is listed on the TSCA Inventory. Guidance on how to determine if a chemical substance is on the TSCA Inventory is available on the Internet at 
                    *http://www.epa.gov/​opptintr/​existingchemicals/​pubs/​tscainventory/​index.html.* V. Applicability of the Significant New Use Designation If uses begun after the proposed rule was published were considered ongoing rather than new, any person could defeat the SNUR by initiating the significant new use before the final rule was issued. Therefore, EPA designated the date of public release/web posting of the proposed rule, as the cutoff date for determining whether the new use is ongoing. Consult the 
                    **Federal Register**
                     Notice of April 24, 1990 (55 FR 17376), (FRL-3658-5) for a more detailed discussion of the cutoff date for ongoing uses. Any person who began commercial manufacture or processing of the chemical substances identified in this rule for any of the significant new uses designated in the proposed SNUR after the date of publication of the proposed SNUR, must stop that activity before the effective date of the final rule. Persons who ceased those activities will have to first comply with all applicable SNUR notification requirements and wait until the notice review period, including any extensions, expires, before engaging in any activities designated as significant new uses. If a person were to meet the conditions of advance compliance under 40 CFR 721.45(h), the person would be considered to have met the requirements of the final SNUR for those activities. VI. Development and Submission of Information EPA recognizes that TSCA section 5 does not require developing any particular new information (
                    *e.g.,*
                     generating test data) before submission of a SNUN. There is an exception: Development of test data is required where the chemical substance subject to the SNUR is also subject to a rule, order or consent agreement under TSCA section 4 (see TSCA section 5(b)(1)). In the absence of a TSCA section 4 test rule covering the chemical substance, persons are required only to submit information in their possession or control and to describe any other information known to or reasonably ascertainable by them (see 40 CFR 720.50). However, upon review of PMNs and SNUNs, the Agency has the authority to require appropriate testing. Descriptions of tests are provided for informational purposes. EPA strongly encourages persons, before performing any testing, to consult with the Agency pertaining to protocol selection. To access the OCSPP test guidelines referenced in this document electronically, please go to 
                    *http://www.epa.gov/​ocspp*
                     and select “Test Methods and Guidelines.” The Organisation for Economic Co-operation and Development (OECD) test guidelines are available from the OECD Bookshop at 
                    *http://www.oecdbookshop.org*
                     or SourceOECD at 
                    *http://www.sourceoecd.org.* In the TSCA section 5(e) consent orders for the chemical substances regulated under this rule, EPA has established production volume limits in view of the lack of data on the potential health and environmental risks that may be posed by the significant new uses or increased exposure to the chemical substances. These limits cannot be exceeded unless the PMN submitter first submits the results of toxicity tests that would permit a reasoned evaluation of the potential risks posed by these chemical substances. Under recent TSCA section 5(e) consent orders, each PMN submitter is required to submit each study at least 14 weeks (earlier TSCA section 5(e) consent orders required submissions at least 12 weeks) before reaching the specified production limit. Listings of the tests specified in the TSCA section 5(e) consent orders are included in Unit IV. The SNURs contain the same production volume limits as the TSCA section 5(e) consent orders. Exceeding these production limits is defined as a significant new use. Persons who intend to exceed the 
                    ( print page 45993)
                    production limit must notify the Agency by submitting a SNUN at least 90 days in advance of commencement of non-exempt commercial manufacture or processing. Any request by EPA for the triggered and pended testing described in the Consent Order was made based on EPA's consideration of available screening-level data, if any, as well as other available information on appropriate testing for the PMN substance. Further, any such testing request on the part of EPA that includes testing on vertebrates was made after consideration of available toxicity information, computational toxicology and bioinformatics, and high-throughput screening methods and their prediction models. The recommended tests specified in Unit IV. of the proposed rule may not be the only means of addressing the potential risks of the chemical substance. However, submitting a SNUN without any test data may increase the likelihood that EPA will take action under TSCA section 5(e), particularly if satisfactory test results have not been obtained from a prior PMN or SNUN submitter. EPA recommends that potential SNUN submitters contact EPA early enough so that they will be able to conduct the appropriate tests. SNUN submitters should be aware that EPA will be better able to evaluate SNUNs which provide detailed information on the following: Human exposure and environmental release that may result from the significant new use of the chemical substances. VII. SNUN Submissions According to § 721.1(c), persons submitting a SNUN must comply with the same notification requirements and EPA regulatory procedures as persons submitting a PMN, including submission of test data on health and environmental effects as described in 40 CFR 720.50. SNUNs must be submitted on EPA Form No. 7710-25, generated using e-PMN software, and submitted to the Agency in accordance with the procedures set forth in 40 CFR 720.40 and 721.25. E-PMN software is available electronically at 
                    *https://www.epa.gov/​reviewing-new-chemicalsunder-toxic-substances-control-act-tsca/​how-submit-e-pmn.* VIII. Economic Analysis EPA evaluated the potential costs of establishing SNUN requirements for potential manufacturers and processors of the chemical substance during the development of the direct final rule. The Agency's complete Economic Analysis is available in the docket under docket ID number EPA-HQ-OPPT-2016-0207. IX. Scientific Standards, Evidence, and Available Information EPA has used scientific information, technical procedures, measures, methods, protocols, methodologies, and models consistent with the risk assessment documents included in the public docket. These information sources supply information relevant to whether a particular use would be a significant new use, based on relevant factors including those listed under TSCA section 5(a)(2). The clarity and completeness of the data, assumptions, methods, quality assurance, and analyses employed in EPA's decision are documented, as applicable and to the extent necessary for purposes of this proposed significant new use rule, in Unit II and in the documents noted above. EPA recognizes, based on the available information, that there is variability and uncertainty in whether any particular significant new use would actually present an unreasonable risk. For precisely this reason, it is appropriate to secure a future notice and review process for these uses, at such time as they are known more definitely. The extent to which the various information, procedures, measures, methods, protocols, methodologies or models used in EPA's decision have been subject to independent verification or peer review is adequate to justify their use, collectively, in the record for a significant new use rule. X. Statutory and Executive Order Reviews A. Executive Order 12866 This action establishes a SNUR for the chemical substance that is the subject of a PMN and a TSCA section 5(e) consent order. The Office of Management and Budget (OMB) has exempted these types of actions from review under Executive Order 12866, entitled “Regulatory Planning and Review
                    *”*
                     (58 FR 51735, October 4, 1993). B. Paperwork Reduction Act (PRA) According to the PRA, (44 U.S.C. 3501 
                    *et seq.*), an agency may not conduct or sponsor, and a person is not required to respond to a collection of information that requires OMB approval under PRA, unless it has been approved by OMB and displays a currently valid OMB control number. The OMB control numbers for EPA's regulations in title 40 of the CFR, after appearing in the 
                    **Federal Register**
                    , are listed in 40 CFR part 9, and included on the related collection instrument or form, if applicable. EPA is amending the table in 40 CFR part 9 to list the OMB approval number for the information collection requirements contained in this rule. This listing of the OMB control numbers and their subsequent codification in the CFR satisfies the display requirements of PRA and OMB's implementing regulations at 5 CFR part 1320. This Information Collection Request (ICR) was previously subject to public notice and comment prior to OMB approval, and given the technical nature of the table, EPA finds that further notice and comment to amend it is unnecessary. As a result, EPA finds that there is “good cause” under section 553(b)(3)(B) of the Administrative Procedure Act, 5 U.S.C. 553(b)(3)(B), to amend this table without further notice and comment. The information collection requirements related to this action have already been approved by OMB pursuant to PRA under OMB control number 2070-0012 (EPA ICR No. 574). This action does not impose any burden requiring additional OMB approval. If an entity were to submit a SNUN to the Agency, the annual burden is estimated to average between 30 and 170 hours per response. This burden estimate includes the time needed to review instructions, search existing data sources, gather and maintain the data needed, and complete, review, and submit the required SNUN. Send any comments about the accuracy of the burden estimate, and any suggested methods for minimizing respondent burden, including through the use of automated collection techniques, to the Director, Collection Strategies Division, Office of Environmental Information (2822T), Environmental Protection Agency, 1200 Pennsylvania Ave. NW., Washington, DC 20460-0001. Please remember to include the OMB control number in any correspondence, but do not submit any completed forms to this address. C. Regulatory Flexibility Act (RFA) On February 18, 2012, EPA certified pursuant to RFA section 605(b) (5 U.S.C. 601 
                    *et seq.*), that promulgation of a SNUR does not have a significant economic impact on a substantial number of small entities where the following are true: 1. A significant number of SNUNs would not be submitted by small entities in response to the SNUR. 2. The SNUR submitted by any small entity would not cost significantly more than $8,300. A copy of that certification is available in the docket for this action.
                    ( print page 45994) This action is within the scope of the February 18, 2012 certification. Based on the Economic Analysis discussed in Unit IX. and EPA's experience promulgating SNURs (discussed in the certification), EPA believes that the following are true: A significant number of SNUNs would not be submitted by small entities in response to the SNUR.
                Submission of the SNUN would not cost any small entity significantly more than $8,300. Therefore, the promulgation of the SNUR would not have a significant economic impact on a substantial number of small entities. D. Unfunded Mandates Reform Act (UMRA) Based on EPA's experience with proposing and finalizing SNURs, State, local, and Tribal governments have not been impacted by these rulemakings, and EPA does not have any reasons to believe that any State, local, or Tribal government will be impacted by this final rule. As such, EPA has determined that this final rule does not impose any enforceable duty, contain any unfunded mandate, or otherwise have any effect on small governments subject to the requirements of UMRA sections 202, 203, 204, or 205 (2 U.S.C. 1501 
                    *et seq.*). E. Executive Order 13132 This action will not have a substantial direct effect on States, on the relationship between the national government and the States, or on the distribution of power and responsibilities among the various levels of government, as specified in Executive Order 13132, entitled “Federalism” (64 FR 43255, August 10, 1999). F. Executive Order 13175 This final rule does not have Tribal implications because it is not expected to have substantial direct effects on Indian Tribes. This final rule does not significantly nor uniquely affect the communities of Indian Tribal governments, nor does it involve or impose any requirements that affect Indian Tribes. Accordingly, the requirements of Executive Order 13175, entitled “Consultation and Coordination with Indian Tribal Governments” (65 FR 67249, November 9, 2000), do not apply to this final rule. G. Executive Order 13045 This action is not subject to Executive Order 13045, entitled “Protection of Children from Environmental Health Risks and Safety Risks
                    *”*
                     (62 FR 19885, April 23, 1997), because this is not an economically significant regulatory action as defined by Executive Order 12866, and this action does not address environmental health or safety risks disproportionately affecting children. H. Executive Order 13211 This action is not subject to Executive Order 13211, entitled “Actions Concerning Regulations That Significantly Affect Energy Supply, Distribution, or Use” (66 FR 28355, May 22, 2001), because this action is not expected to affect energy supply, distribution, or use and because this action is not a significant regulatory action under Executive Order 12866. I. National Technology Transfer and Advancement Act (NTTAA) In addition, since this action does not involve any technical standards, NTTAA section 12(d) (15 U.S.C. 272 note), does not apply to this action. J. Executive Order 12898 This action does not entail special considerations of environmental justice related issues as delineated by Executive Order 12898, entitled “Federal Actions to Address Environmental Justice in Minority Populations and Low-Income Populations” (59 FR 7629, February 16, 1994). XI. Congressional Review Act Pursuant to the Congressional Review Act (5 U.S.C. 801 
                    *et seq.*), EPA will submit a report containing this rule and other required information to the U.S. Senate, the U.S. House of Representatives, and the Comptroller General of the United States prior to publication of the rule in the 
                    **Federal Register**
                    . This rule is not a “major rule” as defined by 5 U.S.C. 804(2). List of Subjects 40 CFR Part 9 Environmental protection
Reporting and recordkeeping requirements 40 CFR Part 721 Environmental protection
Chemicals
Hazardous substances
Reporting and recordkeeping requirements
 Dated: September 15, 2017. Maria J. Doa, Director, Chemical Control Division, Office of Pollution Prevention and Toxics.
 Therefore, 40 CFR parts 9 and 721 are amended as follows: PART 9—[AMENDED]
 1.The authority citation for part 9 continues to read as follows: Authority:
                        7 U.S.C. 135 
                            *et seq.,*
                             136-136y; 15 U.S.C. 2001, 2003, 2005, 2006, 2601-2671; 21 U.S.C. 331j, 346a, 348; 31 U.S.C. 9701; 33 U.S.C. 1251 
                            *et seq.,*
                             1311, 1313d, 1314, 1318, 1321, 1326, 1330, 1342, 1344, 1345 (d) and (e), 1361; E.O. 11735, 38 FR 21243, 3 CFR, 1971-1975 Comp. p. 973; 42 U.S.C. 241, 242b, 243, 246, 300f, 300g, 300g-1, 300g-2, 300g-3, 300g-4, 300g-5, 300g-6, 300j-1, 300j-2, 300j-3, 300j-4, 300j-9, 1857 
                            *et seq.,*
                             6901-6992k, 7401-7671q, 7542, 9601-9657, 11023, 11048. 2.In §  9.1, add the following section in numerical order under the undesignated center heading “Significant New Uses of Chemical Substances” to read as follows: §  9.1
  
 40 CFR citation
OMB control No.*    *    *    *    ***Significant New Uses of Chemical Substances***    *    *    *    *721.10927
2070-0012*    *    *    *    *
 PART 721—[AMENDED]
 3.The authority citation for part 721 continues to read as follows: Authority:
                        15 U.S.C. 2604, 2607, and 2625(c). 4.Add § 721.10927 to subpart E to read as follows: § 721.10927
  (a) 
                            *Chemical substance and significant new uses subject to reporting.*
                             (1) The chemical substance identified generically as a bimodal mixture consisting of multi-walled carbon nanotubes and other classes of carbon nanotubes (PMN P-11-482) is subject to reporting under this section for the significant new uses described in paragraph (a)(2) of this section. (2) The significant new uses are: (i) 
                            *Protection in the workplace.*
                             Requirements as specified in § 721.63(a)(1), (a)(2)(i), (a)(2)(ii), (a)(3), (a)(4), (a)(6) (particulate), and (c). When determining which persons are reasonably likely to be exposed as required for § 721.63(a)(1) and (a)(4), engineering control measures (
                            *e.g.,*
                             enclosure or confinement of the 
                            ( print page 45995)
                            operation, general and local ventilation) or administrative control measures (
                            *e.g.,*
                             workplace policies and procedures) shall be considered and implemented to prevent exposure, where feasible. A National Institute for Occupational Safety and Health (NIOSH)-certified air purifying, tight-fitting full-face respirator equipped with N-100, P-100, or R-100 cartridges, or power air purifying particulate respirator with an Assigned Protection Factor (APF) of at least 50 meets the requirements of § 721.63(a)(4). (ii) 
                            *Industrial, commercial, and consumer activities.*
                             Requirements as specified in § 721.80(k) and (q). A significant new use is any use involving an application method that generates a vapor, mist or aerosol. (iii) 
                            *Disposal.*
                             Requirements as specified in § 721.85(a)(1), (a)(2), (b)(1), (b)(2), (c)(1), and (c)(2). (iv) 
                            *Release to water.*
                             Requirements as specified in § 721.90(b)(1) and (c)(1). Any predictable or purposeful release of a manufacturing stream associated with any use of the substance from any site is a significant new use other than the water releases described in the manufacturing process of PMN P-11-482. (b) 
                            *Specific requirements.*
                             The provisions of subpart A of this part apply to this section except as modified by this paragraph. (1) 
                            *Recordkeeping.*
                             Recordkeeping requirements as specified in § 721.125(a) through (e), (i), (j), and (k) are applicable to manufacturers and processors of this substance. (2) 
                            *Limitations or revocation of certain notification requirements.*
                             The provisions of § 721.185 apply to this section. (3) 
                            *Determining whether a specific use is subject to this section.*
                             The provisions of § 721.1725(b)(1) apply to paragraph (a)(2)(ii) of this section.


[FR Doc. 2017-21237 Filed 10-2-17; 8:45 am] BILLING CODE 6560-50-P