On January 16, 2025, the final Federal Milk Marketing Order (FMMO) rule was released after a 49-day national hearing that took place in Carmel, Indiana with 21 different proposals from the dairy industry. Most of the changes and amendments to the uniform pricing formulas went into effect on June 1, 2025. However, the update to milk composition factors will go into effect on December 1, 2025. This paper considers the impact of the FMMO changes on the FO1 base milk prices using monthly data from January 2021 through December 2024, assuming no changes in quantity.