Notice2026-09245

World Trade Center Health Program; Petitions 032, 033, and 068-Peripheral Neuropathy; Finding of Insufficient Evidence

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Published
May 11, 2026

Issuing agencies

Health and Human Services DepartmentCenters for Disease Control and Prevention

Abstract

The Administrator of the World Trade Center (WTC) Health Program has received three petitions (Petitions 032, 033, and 068) to add "peripheral neuropathy" to the List of WTC-Related Health Conditions. Upon reviewing the scientific and medical literature, including information provided by the petitioners, the Administrator has determined that there is insufficient evidence available to support taking further action at this time regarding peripheral neuropathy. The Administrator also finds that insufficient evidence exists to request a recommendation of the WTC Health Program Scientific/Technical Advisory Committee, publish a proposed rule, or publish a determination not to publish a proposed rule.

Full Text

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<title>Federal Register, Volume 91 Issue 90 (Monday, May 11, 2026)</title>
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[Federal Register Volume 91, Number 90 (Monday, May 11, 2026)]
[Notices]
[Pages 25573-25576]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2026-09245]


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DEPARTMENT OF HEALTH AND HUMAN SERVICES

Centers for Disease Control and Prevention

[NIOSH Docket 094]


World Trade Center Health Program; Petitions 032, 033, and 068--
Peripheral Neuropathy; Finding of Insufficient Evidence

AGENCY: Centers for Disease Control and Prevention, Department of 
Health and Human Services.

ACTION: Denial of petitions for addition of a health condition.

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SUMMARY: The Administrator of the World Trade Center (WTC) Health 
Program has received three petitions (Petitions 032, 033, and 068) to 
add ``peripheral neuropathy'' to the List of WTC-Related Health 
Conditions. Upon reviewing the scientific and medical literature, 
including information provided by the petitioners, the Administrator 
has determined that there is insufficient evidence available to support 
taking further action at this time regarding peripheral neuropathy. The 
Administrator also finds that insufficient evidence exists to request a 
recommendation of the WTC Health Program Scientific/Technical Advisory 
Committee, publish a proposed rule, or publish a determination not to 
publish a proposed rule.

DATES: The Administrator of the WTC Health Program is denying these 
petitions for the addition of a health condition as of May 11, 2026.

ADDRESSES: Visit the WTC Health Program website at <a href="https://www.cdc.gov/wtc/received.html">https://www.cdc.gov/wtc/received.html</a> to review Petitions 032, 033, and 068.

FOR FURTHER INFORMATION CONTACT:  Rachel Weiss, Program Analyst, 1090 
Tusculum Avenue, MS: C-48, Cincinnati, OH 45226; telephone (404) 498-
2500 (this is not a toll-free number); email <a href="/cdn-cgi/l/email-protection#e4aaadabb7ac96818397a4878087ca838b92"><span class="__cf_email__" data-cfemail="dd9394928e95afb8baae9dbeb9bef3bab2ab">[email&#160;protected]</span></a>.

SUPPLEMENTARY INFORMATION:

Table of Contents

A. WTC Health Program Statutory Authority
B. Procedures for Evaluating a Petition
C. Petitions 032, 033, and 068
D. Evaluation of Scientific Evidence: Findings and Conclusion
E. Administrator's Final Decision on Whether To Propose the Addition 
of Peripheral Neuropathy to the List
F. Approval To Submit Document to the Office of the Federal Register

A. WTC Health Program Statutory Authority

    Title I of the James Zadroga 9/11 Health and Compensation Act of 
2010 (Pub. L. 111-347, as amended by Pub. L. 114-113, Pub. L. 116-59, 
Pub. L. 117-328, Pub. L. 118-31, and Pub. L. 119-75), added Title 
XXXIII to the Public Health Service (PHS) Act,\1\ establishing the WTC 
Health Program within the Department of Health and Human Services 
(HHS). The WTC Health Program provides medical monitoring and treatment 
benefits for health conditions on the List of WTC-Related Health 
Conditions (List) \2\ to eligible firefighters and related personnel; 
law enforcement officers; and rescue, recovery, and cleanup workers who 
responded to the September 11, 2001, terrorist attacks in New York 
City, at the Pentagon, and in Shanksville, Pennsylvania (responders). 
The Program also provides benefits to eligible persons who were present 
in the dust or dust cloud on September 11, 2001, or who worked, 
resided, or attended school, childcare, or adult daycare in the New 
York City disaster area \3\ (survivors).
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    \1\ Title XXXIII of the PHS Act is codified at 42 U.S.C. 300mm 
to 300mm-64. Those portions of the James Zadroga 9/11 Health and 
Compensation Act of 2010 found in Titles II and III of Public Law 
111-347 do not pertain to the WTC Health Program and are codified 
elsewhere.
    \2\ The List of WTC-Related Health Conditions is established in 
42 U.S.C. 300mm-22(a)(3)-(4) and 300mm-32(b); additional conditions 
may be added through rulemaking and the complete list is provided in 
WTC Health Program regulations at 42 CFR 88.15.
    \3\ See 42 U.S.C. 300mm-5(8); 42 CFR 88.1.
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    All references to the Administrator of the WTC Health Program 
(Administrator) in this document mean the Director of the National 
Institute for Occupational Safety and Health (NIOSH) or his designee.
    In accordance with section 3312(a)(6)(B) of the PHS Act, interested 
parties may petition the Administrator to add a health condition to the 
List in 42 CFR 88.15. Within 90 days after receipt of a valid petition 
to add a condition to the List, the Administrator must take one of the 
following four actions described in section 3312(a)(6)(B) of the PHS 
Act and

[[Page 25574]]

Sec.  88.16(a)(2) of the WTC Health Program regulations: (1) Request a 
recommendation of the WTC Health Program Scientific/Technical Advisory 
Committee (STAC); (2) publish a proposed rule in the Federal Register 
to add such health condition; (3) publish in the Federal Register the 
Administrator's determination not to publish such a proposed rule and 
the basis for such determination; or (4) publish in the Federal 
Register a determination that insufficient evidence exists to take 
action under (1) through (3) above.
    More information about the WTC Health Program, including the List 
and the petition process, is available at <a href="http://www.cdc.gov/wtc/">www.cdc.gov/wtc/</a>.

B. Procedures for Evaluating a Petition

    In addition to the regulatory provisions, the WTC Health Program 
has developed policies to guide the review of submissions and 
petitions,\4\ as well as the analysis of evidence supporting the 
potential addition of a non-cancer health condition to the List.\5\
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    \4\ See WTC Health Program [2026], Policy and Procedures for 
Handling Submissions and Petitions to Add a Health Condition to the 
List of WTC-Related Health Conditions, January 22, 2026, <a href="https://www.cdc.gov/wtc/pdfs/policies/PNP_SubmissionsPetitions%20_20260122-508.pdf">https://www.cdc.gov/wtc/pdfs/policies/PNP_SubmissionsPetitions%20_20260122-508.pdf</a>.
    \5\ See WTC Health Program [2024], Policy and Procedures for 
Adding Non-Cancer Conditions to the List of WTC-Related Health 
Conditions, October 18, 2024, <a href="https://www.cdc.gov/wtc/pdfs/policies/WTCHP_PP_Adding_NonCancer_Health_Conditions_20241018.pdf">https://www.cdc.gov/wtc/pdfs/policies/WTCHP_PP_Adding_NonCancer_Health_Conditions_20241018.pdf</a>.
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    A valid petition must include sufficient medical basis for the 
association between the September 11, 2001, terrorist attacks and the 
health condition to be added. In accordance with WTC Health Program 
Policy and Procedures for Handling Submissions and Petitions to Add a 
Health Condition to the List of WTC-Related Health Conditions,\6\ 
reference to a peer-reviewed, published, epidemiologic study about the 
health condition among 9/11-exposed populations or clinical case 
reports of health conditions in WTC responders or survivors may 
demonstrate the required medical basis.\7\ Studies linking 9/11 agents 
or hazards \8\ to the petitioned health condition may also provide 
sufficient medical basis for a valid petition.\9\ In accordance with 42 
CFR 88.16(a)(5), the Administrator is required to consider a new 
petition for a previously evaluated health condition determined not to 
qualify for addition to the List only if the new petition presents a 
new medical basis for the association between 9/11 exposures and the 
condition to be added. A new medical basis is evidence not previously 
reviewed by the Administrator.
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    \6\ Supra note 4.
    \7\ Id. at 7.
    \8\ 9/11 agents are chemical, physical, biological, or other 
hazards reported in a published, peer-reviewed exposure assessment 
study of responders, recovery workers, or survivors who were present 
in the New York City disaster area, or at the Pentagon site, or the 
Shanksville, Pennsylvania site, as those locations are defined in 42 
CFR 88.1, as well as those hazards not identified in a published, 
peer-reviewed exposure assessment study, but which are reasonably 
assumed to have been present at any of the three sites. See WTC 
Health Program [2018], Development of the Inventory of 9/11 Agents, 
July 17, 2018, <a href="https://wwwn.cdc.gov/ResearchGateway/Content/pdfs/Development_of_the_Inventory_of_9-11_Agents_20180717.pdf">https://wwwn.cdc.gov/ResearchGateway/Content/pdfs/Development_of_the_Inventory_of_9-11_Agents_20180717.pdf</a>.
    \9\ Supra note 4 at 7.
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    After the Program has determined that a petition is valid, and in 
accordance with the Policy and Procedures for Adding Non-Cancer 
Conditions to the List of WTC-Related Health Conditions (Policy and 
Procedures), the Administrator directs the WTC Health Program Science 
Team (Science Team) to conduct a review of the scientific literature. 
The literature review is a keyword search of relevant scientific 
databases intended to identify peer-reviewed, published, epidemiologic 
studies about the health condition among 9/11-exposed populations.
    The Science Team evaluates the scientific quality of each peer-
reviewed, published, epidemiologic study of the health condition 
identified in the literature search using validity indicators described 
in the Policy and Procedures.\10\ Studies exhibiting sufficient 
validity indicators have the potential to provide a basis for deciding 
whether to propose adding the health condition to the List and are 
considered ``high-quality'' studies. The Science Team then evaluates 
the identified high-quality studies, individually and together, to 
characterize the evidence of a causal association between 9/11 
exposures and the health condition. As part of this evaluation, the 
Science Team considers the Bradford Hill weight of evidence 
criteria,\11\ study limitations, and whether the studies are 
representative of the 9/11-exposed population of responders and 
survivors. After evaluating the totality of the evidence, the Science 
Team assesses the degree to which the evidence supports a causal 
association between 9/11 exposures and the health condition and assigns 
the evidence to one of the following five categories:
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    \10\ Supra note 5 at 7-8.
    \11\ Hill AB [1965], The Environment and Disease: Association or 
Causation? Proc R Soc Med 58(5):295-300. According to the Policy and 
Procedures, the Bradford Hill criteria are a leading weight of 
evidence framework ``which comprises nine aspects of association. 
These aspects comprise strength of association, consistency, 
specificity, temporality, biological gradient, plausibility, 
coherence, experiment, and analogy.'' See supra note 5 at 9-10 and 
discussion of Bradford Hill analysis at footnote 21.

Category I Evidence supports substantial likelihood of causal 
association
Category II Evidence supports high likelihood of causal association
Category III Evidence supports limited likelihood of causal 
association
Category IV Evidence does not support causal association
Category V Evidence is inadequate to determine the likelihood of 
causal association.

    The Science Team provides the outcome of its evaluation to the 
Administrator. A health condition may be added to the List if peer-
reviewed, published, epidemiologic studies provide support that there 
is a substantial likelihood of a causal association between 9/11 
exposures and the health condition (Category I).\12\ If the evaluation 
of evidence provided in peer-reviewed, published, epidemiologic studies 
of the health condition in 9/11 populations shows a high, but not 
substantial, likelihood of a causal association between the 9/11 
exposures and the health condition (Category II),\13\ then the 
Administrator may consider additional highly relevant scientific 
evidence regarding exposures to 9/11 agents in non-9/11 exposure 
scenarios. If that additional assessment establishes that there is now 
sufficient evidence to support the conclusion that a causal association 
between the 9/11 exposures and the health condition is substantially 
likely among 9/11-exposed populations (Category I), then the 
Administrator may propose the health condition for addition to the 
List.
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    \12\ Substantial likelihood of causal association means that the 
association is strongly supported by evidence from high-quality, 
peer-reviewed, published epidemiologic studies of the health 
condition in 9/11-exposed populations and there is high confidence 
that the association cannot be explained by chance, bias, 
confounding, or any other alternative explanation. See supra note 5 
at 12.
    \13\ High likelihood of causal association means that the 
scientific evidence, taken as a whole, demonstrates that the 
likelihood of a causal association is less than substantial, but 
definitively more than limited. Therefore, there is some meaningful 
likelihood that the association can be explained by chance, bias, 
confounding, or another alternative explanation. See supra note 5 at 
12.
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C. Petitions 032, 033, and 068

    On July 29, 2021, the Administrator received a petition (Petition 
032) requesting the addition of ``neuropathy and paresthesias'' to the 
List.\14\ Because paresthesia is a symptom of sensory neuropathy, the 
Program considered the

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petitioned health condition to be neuropathy. The petition's validity 
was established by reference to one peer-reviewed, published, 
epidemiologic study demonstrating a positive association between 9/11 
exposures and peripheral neuropathy: Case-Control Study of Paresthesia 
Among World Trade Center-Exposed Community Members, by Marmor M, et al. 
[2020],\15\ a peer-reviewed, published case-control study. The study 
found ``increased prevalence of clinical and laboratory-test 
abnormalities indicative of neuropathy among individuals with WTC 
exposure and paresthesia of the lower extremities.''
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    \14\ See Petition 032, WTC Health Program: Petitions Received, 
<a href="http://www.cdc.gov/wtc/received.html">http://www.cdc.gov/wtc/received.html</a>.
    \15\ Marmor M, Thawani S, Cotrina ML, Shao Y, Wong ES, Stecker 
MM, Wang B, Allen A, Wilkenfeld M, Vinik EJ, Vinik AI, Reibman J 
[2020], Case-Control Study of Paresthesia among World Trade Center-
Exposed Community Members, J Occup Environ Med 62(4):307-316.
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    On September 2, 2021, the Administrator received a second petition 
(Petition 033) requesting the addition of peripheral neuropathy to the 
List.\16\ The petition's validity was established by reference to five 
peer-reviewed, published, epidemiologic studies demonstrating a 
positive association between 9/11 exposures and peripheral neuropathy. 
The following referenced publications each individually establish a 
medical basis:
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    \16\ See Petition 033, WTC Health Program: Petitions Received, 
<a href="http://www.cdc.gov/wtc/received.html">http://www.cdc.gov/wtc/received.html</a>.
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    <bullet> Case-Control Study of Paresthesia Among World Trade 
Center-Exposed Community Members, by Marmor M et al. [2020], discussed 
above.
    <bullet> Post-9/11 Peripheral Neuropathy Symptoms among World Trade 
Center-Exposed Firefighters and Emergency Medical Service Workers, by 
Colbeth HL et al. [2019],\17\ a peer-reviewed, published cross-
sectional study which found increased reporting of peripheral 
neuropathy symptoms among 9/11-exposed responders.
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    \17\ Colbeth HL, Zeig-Owens R, Webber MP, Goldfarb DG, Schwartz 
TM, Hall CB, Prezant DJ [2019], Post-9/11 Peripheral Neuropathy 
Symptoms among World Trade Center-Exposed Firefighters and Emergency 
Medical Service Workers, Int J Environ Res Public Health 
16(10):1727.
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    <bullet> Peripheral Neuropathy Due to Vitamin Deficiency, Toxins, 
and Medications, by Staff NP and Windebank AJ, [2014],\18\ a peer-
reviewed, published systematic review which described positive 
associations between 9/11 agents identified in the Inventory of 9/11 
Agents,\19\ including heavy metals, and peripheral neuropathy.
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    \18\ Staff NP and Windebank AJ [2014], Peripheral Neuropathy Due 
to Vitamin Deficiency, Toxins, and Medications, Continuum 
(Minneapolis, Minn.) 20(5):1293-1306.
    \19\ 9/11 agents are listed in the Development of the Inventory 
of 9/11 Agents. See supra note 8.
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    <bullet> Increased Risk of Sensory Neuropathy in Workers with 
Chloracne after Exposure to 2,3,7,8-Polychlorinated Dioxins and Furans, 
by Th[ouml]mke F et al. [1999],\20\ a peer-reviewed, published cross 
sectional study which found a positive association between exposure to 
polychlorinated dioxins and furans (PCDD/F), 9/11 agents identified in 
the Inventory of 9/11 Agents, and neuropathy in pesticide plant 
workers.
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    \20\ Th[ouml]mke F, Jung D, Besser R, Roder R, Konietzko J, Hopf 
HC [1999], Increased Risk of Sensory Neuropathy in Workers with 
Chloracne after Exposure to 2,3,7,8-Polychlorinated Dioxins and 
Furans, Acta Neurol Scand 100(1):1-5.
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    <bullet> Neurological Studies on Polychlorinated Biphenyl (PCB)-
Poisoned Patients, by Chia LG and Chu FL [1984],\21\ a peer-reviewed, 
published epidemiologic study, which found a positive association 
between exposure to polychlorinated biphenyl (PCB), a 9/11 agent 
identified in the Inventory of 9/11 Agents, and peripheral neuropathy 
in Taiwan residents.
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    \21\ Chia LG, Chu FL [1984], Neurological Studies on 
Polychlorinated Biphenyl (PCB)-Poisoned Patients, Am J Ind Med 5(1-
2):117-126.
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    Finally, the Administrator received Petition 068, requesting the 
addition of ``bilateral neuropathy'' to the List, on September 3, 
2025.\22\ Petition validity was established by reference to the study 
by Colbeth et al. [2019], described above.
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    \22\ See Petition 068, WTC Health Program: Petitions Received, 
<a href="http://www.cdc.gov/wtc/received.html">http://www.cdc.gov/wtc/received.html</a>.
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    The five studies submitted by the petitioners described above 
provided sufficient medical basis suggest a positive association 
between exposures to 9/11 agents and peripheral neuropathy and thus 
provided a sufficient medical basis to consider the submissions valid 
petitions.
    The WTC Health Program previously evaluated the available 
scientific literature regarding peripheral neuropathy in response to 
Petitions 010 and 015 and found that the literature did not have the 
potential to provide a basis on whether to add the health condition to 
the List. A Federal Register notice denying Petition 010 was published 
on April 4, 2016 (81 FR 19108), and a notice denying Petition 015 was 
published on May 11, 2017 (82 FR 22004). The studies by Marmor M et al. 
[2020]; Colbeth HL et al. [2019], Staff NP and Windebank AJ [2014], 
Th[ouml]mke F et al. [1999], and Chia LG and Chu FL [1984], discussed 
above, provided a new medical basis for the petitions reviewed in this 
notice.

D. Evaluation of Scientific Evidence: Findings and Conclusion

    In response to Petitions 032, 033, and 068, and pursuant to the 
Policy and Procedures, the Administrator of the WTC Health Program 
directed the Science Team to conduct a systematic literature search to 
identify all peer-reviewed, published, epidemiologic studies of 
peripheral neuropathy among 9/11-exposed populations. Identified 
studies were assessed for quality; any studies determined to be high-
quality would then be evaluated to determine if they provide evidence 
to support a likelihood of a causal association between 9/11 exposure 
and the health condition under consideration. The Science Team provided 
the Administrator with a paper describing its findings, Evaluation of 
Scientific Evidence Supporting the Addition of Peripheral Neuropathy to 
the List of WTC-Related Health Conditions. This paper is available in 
the docket for this activity \23\ and on the Program's website.\24\
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    \23\ <a href="https://www.cdc.gov/niosh/docket/archive/docket094.html">https://www.cdc.gov/niosh/docket/archive/docket094.html</a>.
    \24\ <a href="https://www.cdc.gov/wtc/received.html">https://www.cdc.gov/wtc/received.html</a>.
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    The literature search conducted by the Science Team identified six 
peer-reviewed, published, epidemiologic studies of peripheral 
neuropathy in 9/11-exposed populations. Three of the identified studies 
were previously reviewed in support of already-evaluated Petitions 010 
and 015 and found to be inadequate to provide a basis for a causal 
association between exposure to 9/11 agents and peripheral 
neuropathy.\25\ The remaining three studies identified by the 
literature search \26\ were determined not to have sufficient validity 
indicators to be considered high-quality studies, and thus were not 
found eligible for further evaluation in accordance the Program's 
Policy and Procedures.\27\ Accordingly, the Science Team did not 
conduct

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further evaluation of the three new studies described above.
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    \25\ Stecker MM, Yu H, Barlev R, Marmor M, Wilkenfeld M [2016], 
Neurologic Evaluations of Patients Exposed to the World Trade Center 
Disaster, JOEM 58(11):1150-1154; Wilkenfeld M, Fazzari M, Segelnick 
J, Stecker M [2016], Neuropathic Symptoms in World Trade Center 
Disaster Survivors and Responders, JOEM 58(1):83-86; Marmor M, Shao 
Y, Bhatt DH, Stecker M, Berger K, Goldring R, Rosen R, Caplan-Shaw 
C, Kazeros A, Pradhan D, Wilkenfeld M, Reibman J [2017], 
Paresthesias Among Community Members Exposed to the World Trade 
Center Disaster, JOEM 59(4):389-396.
    \26\ Colbeth et al. [2019], supra note 17; Marmor et al. [2020], 
supra note 15; and Thawani S, Wang B, Shao Y, Reibman J, Marmor M 
[2019], Time to Onset of Paresthesia Among Community Members Exposed 
to the World Trade Center Disaster, Int J Environ Res Public Health 
16(8):1429.
    \27\ See supra note 5 at 7-8.
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    Upon review of the evidence available in peer-reviewed, published, 
epidemiologic studies regarding peripheral neuropathy among 9/11-
exposed populations, the Science Team found that there is inadequate 
evidence to determine a causal association \28\ between 9/11 exposures 
and peripheral neuropathy (Category V).
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    \28\ See supra note 5 at Sec. V.E.--Evidence is Inadequate to 
Determine a Causal Association.
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E. Administrator's Final Decision on Whether To Propose the Addition of 
Peripheral Neuropathy to the List

    Pursuant to the PHS Act, sec. 3312(a)(6)(B)(iv) and 42 CFR 
88.16(a)(2)(iv), and in accordance with Sec. VIII.B. of the Policy and 
Procedures, the Administrator has determined that insufficient evidence 
is available to take further action at this time, including proposing 
the addition of peripheral neuropathy to the List (pursuant to the PHS 
Act, sec. 3312(a)(6)(B)(ii) and 42 CFR 88.16(a)(2)(ii)) or publishing a 
determination not to publish a proposed rule in the Federal Register 
(pursuant to the PHS Act, sec. 3312(a)(6)(B)(iii) and 42 CFR 
88.16(a)(2)(iii)). The Administrator has also determined that 
requesting a recommendation from the STAC (pursuant to the PHS Act, 
sec. 3312(a)(6)(B)(i) and 42 CFR 88.16(a)(2)(i)) is unwarranted.
    For the reasons discussed above, the request in Petitions 032, 033, 
and 068 to add peripheral neuropathy to the List of WTC-Related Health 
Conditions is denied.

F. Approval To Submit Document to the Office of the Federal Register

    The Secretary, HHS, or his designee, the Director, Centers for 
Disease Control and Prevention (CDC) and Administrator, Agency for 
Toxic Substances and Disease Registry (ATSDR), authorized the 
undersigned, the Administrator of the WTC Health Program, to sign and 
submit the document to the Office of the Federal Register for 
publication as an official document of the WTC Health Program. Jay 
Bhattacharya MD, Ph.D., Senior Official Carrying out the Delegable 
Duties of the CDC Director, approved this document for publication on 
May 1, 2026.

John J. Howard,
Administrator, World Trade Center Health Program and Director, National 
Institute for Occupational Safety and Health, Centers for Disease 
Control and Prevention, Department of Health and Human Services.
[FR Doc. 2026-09245 Filed 5-8-26; 8:45 am]
BILLING CODE 4163-18-P


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