If you are part of a positioning crew arriving in Kenya by air or cruise, you need this specific travel authorization before you land. The application requires a clear passport scan valid for at least six months, a recent photo, confirmed accommodation, and your airline or cruise tickets showing entry and exit from Kenya. The single entry eTA allows a stay of up to 90 days within a 90 day validity period. I found the Kenya Positioning Crew eTA page really useful for understanding the document checklist and processing options. Standard processing takes 3 to 5 days, but you can choose rush or super rush if your schedule is tight. Just remember that only US citizens can apply for the upcoming 5 year multiple entry option. Double check your passport validity and make sure all your travel documents are clear before you submit your application to avoid any delays.