Note, the TA isn't just a simple form to fill out they ask for a selfie, a copy of your passport, a copy of your itinerary and a small fee. Travel Authorization Requests should now be submitted through the University Travel System.Travel Warnings must be signed and submitted with this Supplemental Travel Authorization Form. The majority of replies say I must file within 72 hours of arriving regardless of being on cruise ship. Simply provide the requested information and you can submit your Travel Authorization, Disembarkation and Embarkation Information Forms. If you are traveling to St. Kitts, it is required that you complete the online Immigration and Customs ED Form before arrival. TOURIST VISA REQUIRED: No visa required. U.S. citizens can enter visa-free for tourism or business stays of up to 90 days. The application for travel authorization can be submitted starting 30 days before your arrival. The processing time can take up to 24 hours.