This interim final rule updates the maximum civil penalty amounts for violations of statutes and regulations administered by MARAD pursuant to the Federal Civil Penalties Inflation Adjustment Act Improvement Act of 2015. This interim final rule amends our regulations to reflect the new, adjusted civil penalty amounts MARAD may assess pursuant for violations of procedures related to the American Fisheries Act, certain regulated transactions involving documented vessels, the Automated Mutual Assistance Vessel Rescue program (AMVER), and the Defense Production Act.