If you are applying for a nonimmigrant visa and you have urgent medical or humanitarian need to travel and you are unable to schedule an appointment that will accommodate travel, you may request an emergency appointment.
Please go to https://ais.usvisa-info.com/en-gb where you will find further information.
Emergency appointments cannot be scheduled by email. If you have urgent medical or humanitarian need of travel and you cannot schedule an appointment prior to your proposed date of departure, schedule the first available appointment and click on the “Request Expedite” link. Please be aware that only the appointment can be expedited, we do not offer expedited processing.