Saving lives together


UNOS brings together organ transplant patients, donor families, transplantation professionals and others in the transplant community with our mission of matching organs and saving lives. Through policy development and implementation, we strive to create a fair and equitable organ matching and allocation system for those in need.

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UNOS Policy
How we make policy

How we make policy

We strive for consensus in developing policies for organ allocation and distribution. This collaborative process promotes equity among patients.

How policies are made

Public comment

Public comment

We want to hear from patients, professionals, donor families, transplant professionals, and anyone else interested in shaping transplant policy.

Learn more about public comment



Find the OPTN Evaluation Plan, performance management and other tools here to ensure you are following policy correctly.

View compliance

Organ Procurement and Transplantation Network (OPTN) policies are rules that govern operation of all UNOS member transplant hospitals, organ procurement organizations (OPOs) and histocompatibility labs in the U.S. Policies are made through a collaborative process involving committees, the OPTN/UNOS board of directors and the public. View these policies now or view policy brochures.

Framework for organ distribution

Organ distribution

Learn about the continuous distribution model approved by the OPTN as a framework for future policy development as it addresses geographic distribution of donated organs. Continuous distribution would, in the future, replace fixed geographic boundaries with a statistical model incorporating distance along with key clinical factors.

Learn about organ distribution

Liver distribution

Liver policy updates

Read the latest news and important updates about liver distribution policy changes:

View the latest liver policy updates

Policy changes

Learn about changes to donation and transplant policy.

System changes

System notices explain changes to UNet.

Dual and en bloc kidney changes

We implemented phase 1 system changes on July 29. Phase 2 policy and system changes will be effective September 5.

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