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Agency Information Collection Activities: Submission to OMB for Review and Approval; Public Comment Request; Data System for Organ Procurement and Transplantation Network, OMB No. 0906-0110-Revision

In compliance with of the Paperwork Reduction Act of 1995, HRSA submitted an Information Collection Request (ICR) to the Office of Management and Budget (OMB) for review and app...

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Department of Health and Human Services
Health Resources and Services Administration

AGENCY:

Health Resources and Services Administration (HRSA), Department of Health and Human Services (HHS).

ACTION:

Notice.

SUMMARY:

In compliance with of the Paperwork Reduction Act of 1995, HRSA submitted an Information Collection Request (ICR) to the Office of Management and Budget (OMB) for review and approval. Comments submitted during the first public review of this ICR will be provided to OMB. OMB will accept further comments from the public during the review and approval period. OMB may act on HRSA's ICR only after the 30-day comment period for this notice has closed.

DATES:

Comments on this ICR should be received no later than November 9, 2026.

ADDRESSES:

Written comments and recommendations for the proposed information collection should be sent within 30 days of publication of this notice to www.reginfo.gov/​public/​do/​PRAMain. Find this particular information collection by selecting “Currently under 30-day Review—Open for Public Comments” or by using the search function.

FOR FURTHER INFORMATION CONTACT:

To request a copy of the clearance requests submitted to OMB for review, email Samantha Miller, the HRSA Information Collection Clearance Officer at or call (301) 443-9094.

SUPPLEMENTARY INFORMATION:

Information Collection Request Title: Data System for Organ Procurement and Transplantation Network, OMB No. 0906-0110— Revision.

Abstract: Section 372(a) of the Public Health Service Act requires the Secretary of HHS to provide for the continued operation of the Organ Procurement and Transplantation Network (OPTN). Section 372(b)(1)(A) provides that the OPTN shall be operated through awards to public or private entities made by the Secretary. The OPTN is a unique public-private partnership that links professionals involved in the U.S. donation and transplantation system. HRSA, in alignment with the Paperwork Reduction Act of 1995, submits OPTN Board of Directors (BOD)-approved data elements for collection to OMB for official federal approval.

A 60-day Notice was published in the Federal Register , Vol. 91, No. 94, FR pp. 27964 (May 15, 2026). There was one comment from a Transplant Center. The commenter requested that HRSA identify the Board-approved revisions and the specific data collection forms affected. The commenter also requested clarification regarding whether the Patient Safety Contact Management and Patient Transfer forms are revisions to existing forms or new data collection requirements, the rationale for the new forms, and how duplicative data collection and additional administrative burden would be avoided. HRSA responded that draft data collection instruments may be requested at any time during the public comment period and will be made available in both clean and redline formats during the 30-day Federal Register Notice public comment period. HRSA clarified that the Patient Safety Contact Management and Patient Transfer forms are new data collection forms and that their inclusion is described in the notice and reflected in the Estimated Annualized Burden Hours table. HRSA also identified where stakeholders can find the rationale for the proposed revisions to existing forms and the addition of new forms. HRSA encourages interested stakeholders to review these materials for additional background on the OPTN policy development process ( www.hrsa.gov/​optn/​policies-bylaws/​public-comment).

Need and Proposed Use of the Information: HRSA and the OPTN BOD use data to develop organ procurement, allocation, and transplantation policies; evaluate member compliance with OPTN policies and HHS regulations; assess member performance; promote patient safety; and fulfill the requirements of the OPTN regulations at 42 CFR part 121. In particular, the regulatory authority in 42 CFR 121.11 ( www.ecfr.gov/​current/​title-42/​section-121.11) requires the OPTN to maintain specified records and make OPTN data available, consistent with applicable laws, to OPTN members, the Scientific Registry of Transplant Recipients, HHS, and the public for evaluation, research, and other purposes.

This is a request to revise the currently approved OPTN information collection, which includes time-sensitive, life-critical information related to transplant candidates; potential organ donors, organ matching and allocation; histocompatibility testing; organ labeling and packaging; and pre- and post-transplant clinical information for transplant recipients and donors. These data are collected from transplant hospitals, organ procurement organizations, and histocompatibility laboratories.

HRSA and the OPTN use these data to (1) facilitate matching and placement ( printed page 64666) of donor organs with transplant candidates; (2) monitor member compliance with federal laws, regulations, and OPTN requirements; (3) evaluate and periodically report on the status of organ donation, procurement, and transplantation in the United States; (4) provide data to researchers and government agencies to support scientific, clinical, and policy analyses related to organ transplantation; and (5) perform transplantation-related public health surveillance, including the monitoring of donor-derived infections.

HRSA is requesting approval for the following changes to improve organ matching and allocation, enhance patient safety, and support member compliance with OPTN requirements:

(1) Add two new data collection forms to the OPTN Computer System and the OMB-approved information collection:

a. The Patient Safety Contact Management Form. This form will be used by OPTN members to identify the organization's primary and secondary patient safety contacts consistent with the responsibilities outlined in OPTN policy 15.1.

b. The Patient Transfer Form: This form will be used by transplant centers to facilitate the transfer of post-transplant patients to another transplant center during ongoing follow-up.

(2) Remove the Vascularized Composite Allograft (VCA) Transplant Candidate Registration. Following implementation of new VCA waitlist registration forms in the OPTN Waiting List system, OPTN members will no longer need to validate the data on the VCA Transplant Candidate Registration form. The form is now read-only, and all updates and validations will be completed directly within the waitlist registration forms.

(3) Remove the Death Notification Registration and Deceased Donor Death Referral forms. Following OMB approval of the OPTN Ventilated Patient Form (OMB Control No: 0906-0112), these collections are no longer needed within the OPTN Data System since the Ventilated Patient Form contains the information previously collected under these forms.

(4) Incorporate minor edits to previously OMB-approved forms for clarity.

Likely Respondents: Transplant Centers, Organ Procurement Organizations (OPOs), and Histocompatibility Laboratories.

Burden Statement: Burden in this context means the time expended by persons to generate, maintain, retain, disclose or provide the information requested. This includes the time needed to review instructions; to develop, acquire, install and utilize technology and systems for the purpose of collecting, validating and verifying information, processing and maintaining information, and disclosing and providing information; to train personnel and to be able to respond to a collection of information; to search data sources; to complete and review the collection of information; and to transmit or otherwise disclose the information. The total annual burden hours estimated for this ICR are summarized in the table below.

The total estimated annual burden for this information collection increased by 52,029.48 hours compared with the information collection package currently approved by OMB, which was approved June 25, 2025. This increase reflects updates to the number of respondents and responses based on actual OPTN data from calendar year 2025, the addition of two new data collection forms, and revisions to existing data collection forms approved by the OPTN BOD. These increases are partially offset by the reduction of 6,960.18 burden hours resulting from the removal of three forms from the OPTN Computer System.

Total Estimated Annualized Burden—Hours
Form No.**** Form name Number of respondents * Number of responses per respondent Total responses * Average burden per response (in hours) Total burden hours
1 Deceased Donor Registration + 55 452.4 24,882.00 0.48 11,943.36
2 Living Donor Registration 209 31.45 6,573.05 2.2 14,460.71
3 Living Donor Follow-up 209 100.33 20,968.97 1.52 31,872.83
4 Donor Histocompatibility 137 178.56 24,462.72 0.15 3,669.41
5 Recipient Histocompatibility + 137 323.81 44,361.97 0.32 14,195.83
6 Heart Transplant Candidate Registration 149 40.87 6,089.63 0.9 5,480.67
7 Heart Transplant Recipient Registration 149 30.78 4,586.22 1.96 8,988.99
8 Heart Transplant Recipient Follow Up (6 Month) 149 28.51 4,247.99 0.4 1,699.20
9 Heart Transplant Recipient Follow Up (1-5 Year) 149 122.62 18,270.38 0.9 16,443.34
10 Heart Transplant Recipient Follow Up (Post 5 Year) 149 202.66 30,196.34 0.5 15,098.17
11 Heart Post-Transplant Malignancy Form 149 14.58 2,172.42 0.9 1,955.18
12 Lung Transplant Candidate Registration 77 51.26 3,947.02 0.95 3,749.67
13 Lung Transplant Recipient Registration 77 45.34 3,491.18 1.14 3,979.95
14 Lung Transplant Recipient Follow Up (6 Month) 77 41.34 3,183.18 0.5 1,591.59
15 Lung Transplant Recipient Follow Up (1-5 Year) 77 147.7 11,372.90 1.1 12,510.19
16 Lung Transplant Recipient Follow Up (Post 5 Year) 77 162.26 12,494.02 0.6 7,496.41
17 Lung Post-Transplant Malignancy Form 77 22.73 1,750.21 0.4 700.08
18 Heart/Lung Transplant Candidate Registration 75 1.03 77.25 1.16 89.61
19 Heart/Lung Transplant Recipient Registration 75 0.8 60.00 2.09 125.40
20 Heart/Lung Transplant Recipient Follow Up (6 Month) 75 0.75 56.25 0.8 45.00
21 Heart/Lung Transplant Recipient Follow Up (1-5 Year) 75 2.69 201.75 1.1 221.93
22 Heart/Lung Transplant Recipient Follow Up (Post 5 Year) 75 3.64 273.00 0.6 163.80
23 Heart/Lung Post-Transplant Malignancy Form 75 0.2 15.00 0.4 6.00
24 Liver Transplant Candidate Registration 144 112.48 16,197.12 0.8 12,957.70
25 Liver Transplant Recipient Registration 144 85.72 12,343.68 1.2 14,812.42
26 Liver Transplant Recipient Follow Up (6 Month-5 Year) 144 384.5 55,368.00 1 55,368.00
27 Liver Transplant Recipient Follow Up (Post 5 Year) 144 466.79 67,217.76 0.5 33,608.88
28 Liver Recipient Explant Pathology Form 144 7.81 1,124.64 0.6 674.78
29 Liver Post-Transplant Malignancy Form 144 27.19 3,915.36 0.8 3,132.29
30 Intestine Transplant Candidate Registration 17 6.76 114.92 1.3 149.40
31 Intestine Transplant Recipient Registration 17 5.18 88.06 1.8 158.51
32 Intestine Transplant Recipient Follow Up (6 Month-5 Year) 17 23.29 395.93 1.5 593.90
33 Intestine Transplant Recipient Follow Up (Post 5 Year) 17 52.35 889.95 0.4 355.98
34 Intestine Post-Transplant Malignancy Form 17 0.35 5.95 1 5.95
35 Kidney Transplant Candidate Registration 232 225.83 52,392.56 0.8 41,914.05
36 Kidney Transplant Recipient Registration 232 118.94 27,594.08 1.2 33,112.90
( printed page 64667)
37 Kidney Transplant Recipient Follow Up (6 Month-5 Year) 232 610.62 141,663.84 0.9 127,497.46
38 Kidney Transplant Recipient Follow Up (Post 5 Year) 232 617.82 143,334.24 0.5 71,667.12
39 Kidney Post-Transplant Malignancy Form 232 31.57 7,324.24 0.8 5,859.39
40 Pancreas Transplant Candidate Registration 127 2.2 279.40 0.6 167.64
41 Pancreas Transplant Recipient Registration 127 0.84 106.68 1.2 128.02
42 Pancreas Transplant Recipient Follow Up (6 Month-5 Year) 127 4.2 533.40 0.5 266.70
43 Pancreas Transplant Recipient Follow Up (Post 5 Year) 127 15.71 1,995.17 0.5 997.59
44 Pancreas Post-Transplant Malignancy Form 127 0.72 91.44 0.6 54.86
45 Kidney/Pancreas Transplant Candidate Registration 127 13.35 1,695.45 0.6 1,017.27
46 Kidney/Pancreas Transplant Recipient Registration 127 6.34 805.18 1.2 966.22
47 Kidney/Pancreas Transplant Recipient Follow Up (6 Month-5 Year) 127 35.55 4,514.85 0.5 2,257.43
48 Kidney/Pancreas Transplant Recipient Follow Up (Post 5 Year) 127 68.19 8,660.13 0.6 5,196.08
49 Kidney/Pancreas Post-Transplant Malignancy Form 127 2.32 294.64 0.4 117.86
50 VCA Transplant Recipient Registration+ 23 0.39 8.97 1.36 12.20
51 VCA Transplant Recipient Follow Up + 23 2.91 66.93 1.31 87.68
52 Organ Labeling and Packaging 55 308.47 16,965.85 0.18 3,053.85
53 Organ Tracking and Validating 306 18.68 5,716.08 0.08 457.29
54 Kidney Paired Donation Candidate Registration 155 0.4 62.00 0.26 16.12
55 Kidney Paired Donation Donor Registration 155 0.74 114.70 1.08 123.88
56 Kidney Paired Donation Match Offer Management 155 0.86 133.30 0.67 89.31
57 Disease Transmission Event 306 2.96 905.76 0.6 543.46
58 Living Donor Event 209 0.24 50.16 0.56 28.09
59 Safety Situation 443 1.33 589.19 0.24 141.41
60 Potential Disease Transmission Report 55 14.78 812.90 1.27 1,032.38
61 Request to Unlock Form 443 156.16 69,178.88 0.02 1,383.58
62 Initial Donor Registration + 55 453.87 24,962.85 4.75 118,573.54
63 OPO Notification Limit Administration 55 0.16 8.80 0.17 1.50
64 Potential Transplant Recipient 306 5332.24 1,631,665.44 0.05 81,583.27
65 Donor Hospital Registration 55 0.07 3.85 0.08 0.31
66 Donor Organ Disposition 55 453.87 24,962.85 0.17 4,243.68
67 Transplant Center Contact Management 251 863.46 216,728.46 0.06 13,003.71
68 Adult Kidney Candidate Listing Registration 232 227.93 52,879.76 0.52 27,497.48
69 Pediatric Kidney Candidate Listing Registration 103 11.66 1,200.98 0.47 564.46
70 Adult Kidney Pancreas Candidate Listing Registration 127 13.32 1,691.64 0.37 625.91
71 Pediatric Kidney Pancreas Candidate Listing Registration 29 0.1 2.90 0.3 0.87
72 Adult Pancreas Candidate Listing Registration 127 15.27 1,939.29 0.38 736.93
73 Pediatric Pancreas Candidate Listing Registration 30 1.17 35.10 0.38 13.34
74 Adult Pancreas Islet Listing Registration 18 4.44 79.92 0.38 30.37
75 Pediatric Pancreas Islet Listing Registration *** 18 0 0.00 0.33 0.00
76 Adult Liver Candidate Listing Registration 144 107.35 15,458.40 0.32 4,946.69
77 Pediatric Liver Candidate Listing Registration 59 12.51 738.09 0.4 295.24
78 Adult Intestine Candidate Listing Registration 17 4.53 77.01 0.38 29.26
79 Pediatric Intestine Candidate Listing Registration 17 2.24 38.08 0.43 16.37
80 Adult Heart Candidate Listing Registration 149 36.52 5,441.48 0.83 4,516.43
81 Pediatric Heart Candidate Listing Registration 63 10.3 648.90 0.58 376.36
82 Adult HeartLung Candidate Listing Registration + 75 0.96 72.00 0.85 61.20
83 Pediatric HeartLung Candidate Listing Registration 25 0.2 5.00 0.93 4.65
84 Adult Lung Candidate Listing Registration + 77 50.77 3,909.29 1.01 3,948.38
85 Pediatric Lung Candidate Listing Registration + 45 0.84 37.80 0.84 31.75
86 Candidate Registration Listing Removal 251 305.65 76,718.15 0.18 13,809.27
87 VCA Abdominal Wall Candidate Listing Registration *** 8 0 0.00 0.33 0.00
88 VCA External Male Genitalia Candidate Listing Registration *** 2 0 0.00 0.33 0.00
89 VCA Head and Neck Candidate Listing Registration 9 0.11 0.99 0.33 0.33
90 VCA Lower Limb Candidate Listing Registration *** 4 0 0.00 0.33 0.00
91 VCA Musculoskeletal Composite Graft Segment Candidate Listing Registration *** 2 0 0.00 0.33 0.00
92 VCA Other Genitourinary Organ Candidate Listing Registration 5 0.2 1.00 0.33 0.33
93 VCA Spleen Candidate Listing Registration *** 0 0 0.00 0.33 0.00
94 VCA Upper Limb Candidate Listing Registration *** 11 0 0.00 0.33 0.00
95 VCA Uterus Candidate Listing Registration 6 1.83 10.98 0.33 3.62
96 VCA Vascularized Gland Candidate Listing Registration *** 1 0 0.00 0.33 0.00
97 Organ Export Verification Form 55 0.29 15.95 0.03 0.48
98 OPTN Waiting Time Transfer Form 251 5.32 1,335.32 0.23 307.12
99 OPTN Waiting Time Modification Form 251 23.73 5,956.23 0.22 1,310.37
100 OPTN Renal Waiting Time Reinstatement Form 232 1.33 308.56 0.27 83.31
101 OPTN Pancreas Waiting Time Reinstatement Form 127 0.04 5.08 0.2 1.02
102 Intestinal Waiting Time Reinstatement Form 17 0.06 1.02 0.25 0.26
103 Prior Living Donor Priority 232 0.41 95.12 0.27 25.68
104 Kidney Minimum Acceptance Criteria 232 0.96 222.72 0.3 66.82
105 Adult Liver Status 1A Initial Justification and Extension Form 144 2.13 306.72 0.57 174.83
106 Pediatric Liver Status 1A Initial Justification and Extension Form 59 3 177.00 0.57 100.89
107 Pediatric Liver Status 1B Initial Justification and Extension Form 59 7.1 418.90 0.47 196.88
108 Liver Cholangiocarcinoma (CCA) Initial MELD/PELD Score Exception Form 144 0.83 119.52 0.43 51.39
109 Liver Cholangiocarcinoma (CCA) MELD/PELD Score Exception Extension Form 144 0.67 96.48 0.32 30.87
110 Liver Cystic Fibrosis (CF) Initial MELD/PELD Score Exception and Extension Form 144 0.08 11.52 0.33 3.80
111 Liver Familial Amyloid Polyneuropathy (FAP) Initial MELD/PELD Score Exception Form *** 144 0 0.00 0.4 0.00
( printed page 64668)
112 Liver Familial Amyloid Polyneuropathy (FAP) MELD/PELD Score Exception Extension Form 144 0.01 1.44 0.3 0.43
113 Liver Hepatic Artery Thrombosis (HAT) Initial MELD/PELD Score Exception and Extension Form 144 0.55 79.20 0.35 27.72
114 Liver Hepatocellular Carcinoma (HCC) Initial MELD/PELD Score Exception Form 144 22.18 3,193.92 0.47 1,501.14
115 Liver Hepatocellular Carcinoma (HCC) MELD/PELD Score Exception Extension Form 144 28.84 4,152.96 0.35 1,453.54
116 Liver Hepatopulmonary Syndrome (HPS) Initial MELD/PELD Score Exception Form 144 1.42 204.48 0.32 65.43
117 Liver Hepatopulmonary Syndrome (HPS) MELD/PELD Score Exception Extension Form 144 0.81 116.64 0.25 29.16
118 Liver Metabolic Disease Initial MELD/PELD Score Exception and Extension Form 144 0.84 120.96 0.28 33.87
119 Liver Portopulmonary Hypertension Initial MELD/PELD Score Exception Form 144 0.52 74.88 0.42 31.45
120 Liver Portopulmonary Hypertension MELD/PELD Score Exception Extension Form 144 0.38 54.72 0.33 18.06
121 Liver Primary Hyperoxaluria Initial MELD/PELD Score Exception and Extension Form 144 0.1 14.40 0.35 5.04
122 Liver Other Diagnosis Initial MELD/PELD Score Exception and Extension Form 144 14.33 2,063.52 0.35 722.23
123 Pediatric Heart and HeartLung Status 1A Initial Justification Form 63 15.56 980.28 0.52 509.75
124 Pediatric Heart and HeartLung Status 1A Extension and Appeal Justification Forms 63 73.57 4,634.91 0.47 2,178.41
125 Pediatric Heart and HeartLung Status 1B Initial Justification Form 63 7.05 444.15 0.42 186.54
126 Adult Heart and HeartLung Status 1-6 Justification Form Demographic Data 149 161.57 24,073.93 0.32 7,703.66
127 Adult Heart and HeartLung Status 1-6 Justification Form Risk Stratification Data 149 161.57 24,073.93 0.72 17,333.23
128 Adult Heart and HeartLung Status 1 Initial Justification Form Medical Urgency Data 149 8.32 1,239.68 0.58 719.01
129 Adult Heart and HeartLung Status 1 Exception Extension Justification Form Medical Urgency Data 149 1.1 163.90 0.33 54.09
130 Adult Heart and HeartLung Status 1 Criteria 1 Extension Justification Form Medical Urgency Data 149 0.87 129.63 0.53 68.70
131 Adult Heart and HeartLung Status 2 Initial Justification Form Medical Urgency Data+ 149 28.64 4,267.36 0.8 3,413.89
132 Adult Heart and HeartLung Status 2 Exception Extension Justification Form Medical Urgency Data 149 19.99 2,978.51 0.33 982.91
133 Adult Heart and HeartLung Status 2 Criteria 1 Extension Justification Form Medical Urgency Data 149 0.01 1.49 0.42 0.63
134 Adult Heart and HeartLung Status 2 Criteria 4 Extension Justification Form Medical Urgency Data 149 5.54 825.46 0.63 520.04
135 Adult Heart and HeartLung Status 2 Criteria 5 Extension Justification Form Medical Urgency Data 149 1.87 278.63 0.6 167.18
136 Adult Heart and HeartLung Status 3 Initial Justification Form Medical Urgency Data + 149 11.25 1,676.25 0.63 1,056.04
137 Adult Heart and HeartLung Status 3 Exception Extension Justification Form Medical Urgency Data 149 7.5 1,117.50 0.33 368.78
138 Adult Heart and HeartLung Status 3 Criteria 2 Extension Justification Form Medical Urgency Data 149 0.54 80.46 0.32 25.75
139 Adult Heart and HeartLung Status 3 Criteria 5 Extension Justification Form Medical Urgency Data 149 0.04 5.96 0.48 2.86
140 Adult Heart and HeartLung Status 4 Initial Justification Form Medical Urgency Data 149 23.41 3,488.09 0.5 1,744.05
141 Adult Heart and HeartLung Status 4 Exception Extension Justification Form Medical Urgency Data 149 2.17 323.33 0.25 80.83
142 Adult Heart and HeartLung Status 4 Criteria 2 Extension Justification Form Medical Urgency Data 149 0.78 116.22 0.4 46.49
143 Adult and Pediatric Lung and HeartLung Goal Exception Form 149 2.79 415.71 0.75 311.78
144 Pediatric Lung Priority 1 Status Justification Form 45 0.53 23.85 0.33 7.87
145 Review Board Voter Form 251 24.75 6,212.25 0.23 1,428.82
146 Living Donor Feedback Form 209 38.86 8,121.74 0.13 1,055.83
147 Extra Vessels Reporting Form 251 59.28 14,879.28 0.03 446.38
148 Non-US Transplants Reporting Form *** 232 0 0.00 0.03 0.00
149 Discrepant HLA Typings Reporting Form + 137 1.27 173.99 5.17 899.53
150 Interim Event Reporting Form 251 88.45 22,200.95 0.06 1,332.06
151 Patient Safety Contact Management Form ** 306 42.2 12,913.20 0.14 1,807.85
152 Patient Transfer Form ** 251 15.35 3,852.85 0.39 1,502.61
Total 19,314 3,085,444.60 903,607.48
Note: Totals for responses and burden hours may reflect minor discrepancies due to rounding; however, these rounding adjustments do not affect the overall burden estimates presented.
* The numbers of respondents and the numbers of total responses in the burden table were updated with 2025 OPTN data.
** These are new forms.
*** If a form has 0.00 under average number of responses, this is an indicator that there were no submissions in calendar year 2025.
**** As a result of the removal of the Death Notification Registration and the Deceased Donor Death Referral, forms after 65 were renumbered.
+  Forms with minor edits to previously OMB-approved forms.
( printed page 64669)

HRSA specifically requests comments on (1) the necessity and utility of the proposed information collection for the proper performance of the agency's functions, (2) the accuracy of the estimated burden, (3) ways to enhance the quality, utility, and clarity of the information to be collected, and (4) the use of automated collection techniques or other forms of information technology to minimize the information collection burden.

Maria G. Button,

Director, Executive Secretariat.

[FR Doc. 2026-20732 Filed 10-8-26; 8:45 am]

BILLING CODE 4165-15-P

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91 FR 64665

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“Agency Information Collection Activities: Submission to OMB for Review and Approval; Public Comment Request; Data System for Organ Procurement and Transplantation Network, OMB No. 0906-0110-Revision,” thefederalregister.org (October 9, 2026), https://thefederalregister.org/documents/2026-20732/agency-information-collection-activities-submission-to-omb-for-review-and-approval-public-comment-request-data-system-fo.