The Centers for Medicare and Medicaid Services (CMS) is proposing a rule to maximize the use of donor organs, including those that are medically imperfect. The rule includes greater federal government oversight of organ procurement organizations (OPOs). The goal is to increase the use of organs from donors who would otherwise not be fully utilized. The proposed rule was released Wednesday. Organs from such donors should be used more in practice. The rule pushes for more efficient operation of OPOs under federal oversight.