Maritime Supply Chain Security Act

This bill authorizes the Maritime Administration to competitively award grants under the Port Infrastructure Development Program (PIDP) to upgrade or replace port cranes or parts of port cranes maintained, installed, provided, controlled, or sponsored by China or any of its departments, ministries, centers, agencies, or instrumentalities. The bill further specifies that grant funds may be used to upgrade or replace port cranes' hardware or software. PIDP grants fund eligible projects that aim to improve the safety, efficiency, or reliability of the movement of goods through U.S. ports.