Organ Procurement and Transplantation Network

Allocation calculator

Lung allocation system (LAS) calculator

A guide to calculating the lung allocation score

Policy & guidance

Heart

• OPTN policy 6: allocation of hearts and heart-lungs (PDF - 2.5 M)
• Evaluation plan guidance for policy 6 (PDF - 91 K)
• Adult heart allocation toolkit
• National Heart Review Board (NHRB) for Pediatrics FAQ (PDF - 900KB; 7/2021)
• Guidance for Adult Heart Exception Requests (Status 2 Cardiogenic Shock Candidates) (PDF - 448KB; 2/2021)
• Guidance for Pediatric Heart Exception Requests (PDF - 620 KB; 2/2021) 
• Monitoring heart allocation policy change (PDF - 3.6KB; 3/2020)
• Heart Allocation Variances (None active as of 3/1/2020) (PDF 378 K)
• Review board guidance for HCM/RCM exception requests (PDF - 674 K; 10/2018) Effective 10/18/2018
• Review board guidance for adult CHD exception requests (PDF - 180 K; 12/2017) 

Lung

• OPTN policy 10: allocation of lungs (PDF - 2.5 M)
• Evaluation plan guidance for policy 10 (PDF - 91 K)
• Monitoring report available for lower respiratory testing of lung donors (8/5/2021)
• Monitoring lung allocation policy changes (PDF - 2 M; 2/2020)