Visa requirements for flights transiting the USA for foreign official travel

[immihelp]

Good afternoon

I work for the British Foreign and Commonwealth Office in London, and travel extensively on behalf of the office conducting official health and safety audits around the world.

My travel provider has booked travel for me to transit Miami on route to various countries in South America and the Caribbean. I leave the UK on Saturday 15 May.

The visa pages are confusing and I want to ensure that I apply for the correct one, would you please advise which visa I require.

Thank you

[immihelp]

If you are British citizen, you don't need visa to visit the USA for the duration up to 90 days. http://www.immihelp.com/visa-waiver-program/