The fourth Mathematical Congress of the Americas, MCA 2025, will take place in Miami, Florida, USA; the dates are July 21-25, 2025. A list of invited speakers and other information can be found at the Congress website. Proposals to organize a special session are welcomed; the new deadline is May 31, 2024. Organizational teams should have representation from two or more countries in the Americas, and proposals should be topically broad, with the potential to bring together diverse groups of researchers from multiple countries in the Americas. Proposals are being reviewed on a rolling basis. Descriptions of Special Sessions that have already been approved can be found here. There is space for roughly 60 special sessions. More information and instructions for submitting a proposal may be found here.
