G/TBT/N/USA/1512/Add.2  
 
12 January 2021  
(21-0389) Page: 1/4 
Committee on Technical Barriers to Trade  Original: English  
 
 
NOTIFICATION  
Addendum  
The following communication , dated  11 January 2021 , is being circulated at the request of the 
delegation of the United States of America . 
 
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Title: Regulation of Persistent, Bioaccumulative, and Toxic Chemicals Under TSCA Section 6(h)  
 
Reason for Addendum:  
[  ] Comment period changed - date:   
[  ] Notified measure adopted - date:  
[X] Notified measure published - date: 6 January 2021  
[X] Notified measure enters into force - date: 5 February 2021  
[X] Text of final measure available from1:  
https://www.govinfo.gov/content/pkg/FR -2021-01-06/html/2020 -28690. htm 
https://www.govinfo.gov/content/pkg/FR -2021-01-06/pdf/2020 -28690.pdf  
https://www.govinfo.gov/content/pkg/FR -2021-01-06/html/2020 -28686.htm  
https://www.govin fo.gov/content/pkg/FR -2021-01-06/pdf/2020 -28686.pdf  
https://www.govinfo.gov/content/pkg/FR -2021-01-06/html/2020 -28693.htm  
https://www.govinfo.gov/content/pkg/FR -2021-01-06/pdf/2020 -28693.pdf  
https://www.govinfo.gov/content/pkg/FR -2021-01-06/html/2020 -28689.htm  
https://www.govinfo.gov/content/pkg/FR -2021-01-06/pdf/2020 -28689.pdf  
https://ww w.govinfo.gov/content/pkg/FR -2021-01-06/html/2020 -28692.htm  
https://www.govinfo.gov/content/pkg/FR -2021-01-06/pdf/2020 -28692.pdf  
https://members.wto.org/crnattachments/2021/TBT/USA/final_measure/21_0324_00_
e.pdf 
https://members.w to.org/crnattachments/2021/TBT/USA/final_measure/21_0324_01_
e.pdf 
https://members.wto.org/crnattachments/2021/TBT/USA/final_measure/21_0324_02_
e.pdf 
https://members.wto.org/crnattachments/2021/TBT/USA/final_measure/21_0324_03_
e.pdf 
https://members.wto.org/crnattachments/2021/TBT/USA/final_measure/21_0324_04_
e.pdf 
[  ] Notified measure withdrawn or revoked - date:  
Relevant symbol if measure re -notified:   
 
1 This information can be provided by including a website address, a pdf attachment, or other 
information on where the text of the final measure and/or interpretive guidance can be obtained.  G/TBT/N/USA/1512/Add.2  
 
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  [  ] Content or scope of notified measure changed  
New deadline for comments (if applicable):   
[  ] Interpretive guidance issued and text available from1:  
[  ] Other:  
 
Description:   
TITLE: 2,4,6 -tris(tert -butyl)phenol (2,4,6 -TTBP); Regulation of Persistent, Bioaccumulative, and 
Toxic Chemicals Under TSCA Section 6(h)  
AGENCY: Environmental Protection Agency (EPA)  
ACTION: Final rule  
https://www.govinfo.gov/content/pkg/FR -2021-01-06/html/2020 -28690.htm  
https://www.govinfo.gov/content/pkg/FR -2021-01-06/pdf/2020 -28690.pdf  
SUMMARY: The Environmental Protection Agency (EPA) is finalizing a rule under the Toxic 
Substances Control Act (TSCA) to address its obligations under TSCA for 2,4,6 -tris(tert -butyl)phenol 
(2,4,6 -TTBP) (CASRN 732 -26-3), which EPA has determined meets the requirements for expedited 
action under TSCA. This final rule prohibits the distribution in commerce of 2,4,6 -TTBP and pro ducts 
containing 2,4,6 -TTBP at concentrations above 0.3% in any container with a volume of less than 
35 gallons for any use, in order to effectively prevent the use of 2,4,6 -TTBP as an antioxidant in fuel 
additives or fuel injector cleaners by consumers an d small commercial operations (e.g., automotive 
repair shops, marinas). This final rule also prohibits the processing and distribution in commerce of 
2,4,6 -TTBP, and products containing 2,4,6 -TTBP at concentrations above 0.3 percent by weight, for 
use as a n oil or lubricant additive, regardless of container size. These requirements will reduce the 
exposure to humans and the environment, by reducing the potential for consumer exposures to 
2,4,6 -TTBP and potential occupational exposure in certain industries w here workers are unprotected, 
as well as potential releases to the environment from consumer and small commercial operations 
use. 
DATES: This final rule is effective 5 February 2021. For purposes of judicial review and 40 CFR 23.5, 
this rule shall be promu lgated at 1 p.m. (e.s.t.) on 21 January 2021.  
  
TITLE: Decabromodiphenyl Ether (DecaBDE); Regulation of Persistent, Bioaccumulative, and Toxic 
Chemicals Under TSCA Section 6(h)  
AGENCY: Environmental Protection Agency (EPA)  
ACTION: Final rule  
https://www.govinfo.gov/content/pkg/FR -2021-01-06/html/2020 -28686.htm  
https://www.govinfo.gov/content/pkg/FR -2021-01-06/pdf/2020 -28686.pdf  
SUMMARY: The Environmental Protection Agency (EPA) is finalizing a rule under the Toxic 
Substances Control Act (TSCA) to address its obligations under TSCA for decabromodiphenyl ether 
(decaBDE ) (CASRN 1163 -19-5), which EPA has determined meets the requirements for expedited 
action under of TSCA. This final rule prohibits all manufacture (including import), processing, and 
distribution in commerce of decaBDE, or decaBDE -containing products or ar ticles, with some 
exclusions. These requirements will result in lower amounts of decaBDE being manufactured, 
processed, distributed in commerce, used and disposed, thus reducing the exposures to humans and 
the environment.  
DATES: This final rule is 5 Febru ary 2021. For purposes of judicial review and 40 CFR 23.5, this rule 
shall be promulgated at 1 p.m. eastern standard time on 21 January 2021.  
  
TITLE: Hexachlorobutadiene (HCBD); Regulation of Persistent, Bioaccumulative, and Toxic 
Chemicals Under TSCA Sec tion 6(h)  
AGENCY: Environmental Protection Agency (EPA)  
ACTION: Final rule  G/TBT/N/USA/1512/Add.2  
 
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  https://www.govinfo.gov/content/pkg/FR -2021-01-06/html/2020 -28693.htm  
https://www.govinfo.gov/content/pkg/FR -2021-01-06/pdf/2020 -28693.pdf  
SUMMARY: The Environmental Protection Agency (EPA) is finalizing a rule under the Toxic 
Substances Control Act (TSCA) to address its obligations under TSCA for hexachlorobutadiene 
(HCBD) (CASRN 87 -68-3), which EPA has determined meets the requirements for expedited action 
under TSCA. This final rule prohibits all manufacturing (including import),  processing, and 
distribution in commerce of HCBD and HCBD - containing products or articles, recognizing that there 
is unintentional production of HCBD as a byproduct during the production of chlorinated solvents, 
and that results in distribution in commer ce of a very limited subset of that byproduct for burning 
as a waste fuel. These requirements will impact the amount of HCBD that will be manufactured, 
processed, distributed in commerce, used or disposed, thus reducing the exposures to humans and 
the envi ronment from those activities prohibited under this final rule.  
DATES: This final rule is effective 5 February 2021. For purposes of judicial review and 40 CFR 23.5, 
this rule shall be promulgated at 1 p.m. eastern standard time on 21 January 2021.  
  
TITLE : Pentachlorothiophenol (PCTP); Regulation of Persistent, Bioaccumulative, and Toxic 
Chemicals Under TSCA Section 6(h)  
AGENCY: Environmental Protection Agency (EPA)  
ACTION: Final rule  
https://www.govinfo.gov/content/pkg/FR -2021-01-06/html/2020 -28689.htm  
https://www.govinfo.gov/content/pkg/FR -2021-01-06/pdf/2020 -28689.pdf 
SUMMARY: The Environmental Protection Agency is finalizing a rule under the Toxic Substances 
Control Act (TSCA) to address its obligations under TSCA for pentachlorothiophenol (PCTP) (CASRN 
133-49-3), which EPA has determined meets the requirements f or expedited action under TSCA. 
This final rule prohibits all manufacturing (including import), processing, and distribution in 
commerce of PCTP and PCTP -containing products or articles for any use, unless PCTP concentrations 
are at or below 1% by weight. This rule will result in lower amounts of PCTP being manufactured, 
processed, and distributed, which will impact the amount that will be available for use or disposal, 
thus reducing the exposures to humans and the environment.  
DATES: This final rule is eff ective 5 February 2021. For purposes of judicial review and 40 CFR 23.5, 
this rule shall be promulgated at 1 p.m. eastern standard time on 21 January 2021.  
  
TITLE: Phenol, Isopropylated Phosphate (3:1) (PIP 3:1); Regulation of Persistent, Bioaccumulative,  
and Toxic Chemicals Under TSCA Section 6(h)  
AGENCY: Environmental Protection Agency (EPA)  
ACTION: Final rule  
https://www.govinfo.gov/content/pkg/FR -2021-01-06/html/2020 -28692.htm  
https://www.govinfo.gov/content/pkg/FR -2021-01-06/pdf/2020 -28692.pdf  
SUMMARY: The Environmental Protection Agency (EPA) is finalizing a r ule under the Toxic 
Substances Control Act (TSCA) to address its obligations under TSCA for phenol, isopropylated 
phosphate (3:1) (PIP (3:1)) (CASRN 68937 -41-7), which EPA has determined meets the 
requirements for expedited action under TSCA. This final ru le prohibits the processing and 
distribution of PIP (3:1) and PIP (3:1) -containing products, with specified exclusions, and prohibits 
the release of PIP (3:1) to water during manufacturing, processing, and distribution. This final rule 
also requires commer cial users to follow existing regulations and best practices to prevent the 
release to water of PIP (3:1) and products containing PIP (3:1) during use. These requirements will 
result in lower amounts of PIP (3:1) being manufactured, processed, distributed in commerce, used 
and disposed, thereby reducing exposures to humans and the environment.  
DATES: This final rule is effective 5 February 2021. For purposes of judicial review and 40 CFR 23.5, 
this rule shall be promulgated at 1 p.m. eastern standard time o n 21 January 2021.  
These final rules and previous actions notified under the symbol G/TBT/N/USA/1512  are identified 
by Docket Number EPA -HQ-OPPT-2019-0080. The Docket Folder is available on Regulations.gov  at G/TBT/N/USA/1512/Add.2  
 
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  https://www.regulations.gov/docket?D=EPA -HQ-OPPT-2019-0080 and provides access to primary 
and supporting documents as well as comments received. Documents are also accessible from 
Regulations.gov  by searching the Docket Number.  
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