Resilient Ports Act This bill revises the Port Infrastructure Development Program with respect to port and intermodal improvement grants. Specifically, the bill authorizes the Department of Transportation (DOT) to provide grants for projects that will be used to improve the safety, efficiency, or reliability of emissions mitigation measures directly related to reducing the overall carbon footprint from port operations. Additionally, the bill increases from 18% to 25% the set-aside that DOT must reserve for grants for port projects that request the lesser of (1) 10% of the grant amounts made available for a fiscal year, or (2) $10 million. In selecting projects for funding, the bill requires DOT to give substantial weight to projects that increase the port's resilience to sea-level rise, flooding, and extreme weather events, including events related to climate change.