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S. 4109 · Where this bill is now

In committee

Introduced in the Senate, Mar 17, 2026

What this bill does

In plain words · AI-written from the official summary

Renews bone marrow and cord blood programs

The bill reauthorizes federal programs that help patients receive transplants of bone marrow or umbilical cord blood from unrelated donors. It extends support for the C.W. Bill Young Cell Transplantation Program, which matches and distributes these donated materials to patients who need them. The bill also updates the National Cord Blood Inventory program to adjust how many cord blood units the government stores and to include reviews of emerging medical technologies.

How it affects you

People who need bone marrow or cord blood transplants may benefit from these extended programs, which help them find compatible donors and access donated materials. The bill doesn't directly change what most Americans do, but it ensures that these federal transplant programs continue operating through 2031 and that cord blood supplies are managed effectively for patients who rely on them.

Read the official summary (Reported to Senate, Jun 22, 2026)

Stem Cell Therapeutic and Research Reauthorization Act of 2026

This bill reauthorizes through FY2031 and revises programs that help patients receive transplants of bone marrow or umbilical cord blood from biologically unrelated donors. These programs are administered by the Health Resources and Services Administration (HRSA).

The bill reauthorizes the C.W. Bill Young Cell Transplantation Program. This program supports transplantation of bone marrow and cord blood by increasing the quantities of donations, providing processes for matching and distributing donated materials to patients, and providing related information and research. The bill also expands periodic reviews of the state of stem cell science to specifically include a review of the use of high-quality cord blood units and other emergent technologies to develop new therapies for potential inclusion in the program.

Also, the bill reauthorizes and revises the National Cord Blood Inventory program, through which HRSA contracts with qualified cord blood banks to collect and maintain a supply of high-quality units for transplantation through the C.W. Bill Young Cell Transplantation Program. The bill amends the inventory program by (1) changing the inventory goal from 150,000 units to a sufficient supply as determined by HRSA, (2) requiring HRSA to manage the size and composition of the inventory to maximize clinical utility and efficiency, and (3) defining high quality cord blood unit to mean a unit meeting current industry standards and the requirements of the Food and Drug Administration.

Written by AI (Claude) using only the official summary by the Congressional Research Service, the Library of Congress’s nonpartisan research staff. It can miss nuance, so check the official summary and the bill text for details.

119th Congress
2nd Session
S. 4109

A BILL

Stem Cell Therapeutic and Research Reauthorization Act of 2026

In the SenateNo vote yet

Sponsor: Sen. Jack Reed (D-RI) · Introduced Mar 17, 2026 · Health · 2 versions of the text

Sources: Congress.gov actions and votes · bill text from GovInfo · latest official action Jun 22, 2026: “Placed on Senate Legislative Calendar under General Orders. Calendar No. 443.”

Sections

The wording of this bill hasn’t changed across its 2 official versions.

Sections · 3