Uruguay
Uruguay's Comisión Receptora e Investigadora de Denuncias de Objetos Voladores No Identificados (CRIDOVNI) is the world's longest continuously-operating air-force-hosted UAP investigation programme in continuous service since 1979. Active under Comando General de la Fuerza Aérea Uruguaya (FAU), CRIDOVNI investigates civilian and military reports across Uruguay's airspace, publishes annual statistics, and maintains a public reporting hotline at the FAU's Carrasco International Airport office.
Mission (verbatim, FAU charter)
"La CRIDOVNI tiene por misión recibir e investigar las denuncias relativas a objetos voladores no identificados que pudieran constituir un peligro para la aeronavegación, así como difundir los resultados de sus investigaciones de acuerdo con la legislación vigente."
Operating model
11-member panel under FAU command, including aeronautical engineers, an astronomer from the Departamento de Astronomía of the Universidad de la República, a meteorologist from INUMET, and a senior FAU intelligence officer. Reports are accepted by phone, in person at Carrasco, or via web form.
Notable case classifications
CRIDOVNI uses a four-tier system similar to GEIPAN: natural (atmospheric/astronomical), artificial (aircraft/satellite/balloon), inconcluso (insufficient data), and sin identificación (unidentified after exhaustive investigation). The 2019 public summary listed ~30% of cumulative cases as sin identificación.