What is INGALA fee? What is the TCC? What is the TCT?
These are all the same thing! In short, this is a small fee that is paid to receive a "transit card" that authorises you to visit the Galapagos, and ensures that you return again at the end of your trip.
Introduced in 2012 by INGALA, the Ecuadorian government department that administers the Galapagos, the system is designed to help control unauthorised immigration to the islands, whose fragile ecosystems are already at risk from human activity.
You must go to the INGALA booth at the airport in Ecuador with your valid plane ticket to Galapagos. After paying the $20 administration fee you will receive your TCC ("Transit Control Card"), also known in Spanish as TCT ("tarjeta de control de transito"). You then turn in your cards at the end of the trip. The system tracks all non-residents movements into and out of Galapagos.
Please note the INGALA booth at the airport only accepts CASH payments.