I will be transiting in Miami this July, on my way to Colombia. I am Polish national with a Polish passport, however my passport does not have the Echip so is not an electronic passport. Poland is also not part of the visa waiver programme countries, therefore I am applying for a C1 transit visa. I have been reading that all passengers to the USA are required to have an electronic passport. However I am unsure whether this is just for those people applying on the visa waiver programme or everyone (including all visa)? Again, I will be getting the c1 transit visa so is it ok to travel in the C1 without an electronic visa?