You will book your biometrics at one of the 130 USCIS Application Support Centres across the US and you purchase Settlement Priority processing and your return courier label on the VFS Global website when you book your appointment. You then print the receipt and mail it with your passport and any documents to New York. Nothing is mailed to Sheffield anymore.
Your documents are now scanned and uploaded at home and then you mail your passport, stamped biometrics receipt, Priority receipt and return packaging and postage to New York. There is a service you can purchase where they will scan your documents for you in New York, but it costs about £100 extra, so if you can scan at home, that will save you some money.
If you select Chicago Premium Centre for your appointment, you will have to purchase the Settlement Premium Service for $2000... this includes priority processing, return courier service, document scanning, and you get to keep your passport , but it’s a total waste of money, and doesn’t get your application processed any faster than just purchasing settlement priority processing for about $800.
See here for info on booking the appointment, purchasing Settlement Priority processing and uploading your documents:
https://www.vfsglobal.co.uk/us/en/vacs/usa-application-support-centreSee here for how to apply in the USA, including the New York address you mail it to:
https://www.gov.uk/government/publications/usa-apply-for-a-uk-visa/apply-for-a-uk-visa-in-the-usaSent from my iPhone using Tapatalk