The eleventh volume of the book series "Fundamentals of Veterinary Legislation" provides information on bee diseases and fish diseases, for which, in accordance with the Order of the Ministry of Agriculture of the Russian Federation No. 189, a report is submitted on the form No. 1-vet, namely: characteristics of diseases and texts of existing rules and instructions for their prevention and elimination. The following diseases are covered - bees: varroatosis, acarapidosis, European putrefaction, American putrefaction, nozematosis, viral paralysis, hafnia, amebiasis, braulosis, ascospherosis, sacral brood; - fish: hyrodactylosis, aeromonosis, spring viremia of carps, salmonine pancreatic necrosis, hematopoietic tissue necrosis, viral hemorrhagic septicemia . The current veterinary requirements for objects intended for the maintenance of bees and fish, as well as criteria for determining the status of the region for infectious diseases of bees and fish.