The current regulations provide two tracks for replacing dairy animals which are tied to how dairy farmers transition to organic production. Farmers who transition an entire distinct herd must thereafter replace dairy animals with livestock that has been under organic management from the last third of gestation. Farmers who do not transition an entire distinct herd may perpetually obtain replacement animals that have been managed organically for 12 months prior to marketing milk or milk products as organic. The proposed action would eliminate the two-track system and require that upon transition, all existing and replacement dairy animals from which milk or milk products are intended to be sold, labeled, or represented as organic must be managed organically from the last third of gestation.