All travelers to Colombia must complete the Check-Mig pre-registration form before traveling. This online form is managed by Migración Colombia and must be filled out between 72 hours and 1 hour prior to entering or leaving the country. It requires personal details, travel itinerary, and flight information. Once completed, travelers receive a confirmation, usually in the form of a QR code, which must be presented at the airport during boarding and again upon arrival in Colombia. The Check-Mig process helps streamline immigration procedures and is mandatory for both visa-exempt travelers and those holding a tourist visa.