Summary: Ley 23.899, 1990 creates the National Service of Animal Health, and establishes its purposes, responsibilities and organization. According to this law, The National Service of Animal Health executes governmental policy on animal health. The main purpose of NSAH is to prevent, control and eradicate animal diseases and animal diseases transmissible to humans, to exercise hygienic-sanitary control of all products of animal origin, taking into account the advances in health technology and the most modern procedures for its control and the control of the products destined to the diagnosis, prevention and treatment of animal diseases. This entity is formed by an executive structure; a board of directors and provincial or regional commissions. The National Service of Animal is an entity of public private law with National scope, that maintains its relations with the national government through the Undersecretariat of Agriculture, Livestock and Fishing of the Nation.