The article outlines a mandatory vaccination and herd declaration initiative by the Goiás Agricultural Defense Agency (Agrodefesa) to combat rabies among livestock in 119 high-risk municipalities. This initiative, detailed in Ordinance No. 473/2024, includes vaccination for certain age groups of cattle, buffaloes, equines, goats, and sheep by December 15, and a herd declaration by December 31. Farmers must purchase vaccines from registered retailers and declare their herds through the Goiás Agricultural Defense System (Sidago). The ordinance also regulates animal movement and requires proof of vaccination and herd declaration for animals to be permitted in auctions or fairs.