Answer
According to the State Department they will typically grant expedited appointments to applicants who wish to go for funerals, family visits in medical emergencies, emergency medical treatment, the start of a school term, or important business travel. All requests are submitted through a form on the website. The center responds to all requests within 24 hours. The center recommends that applicants upload evidence along with the request, especially in medical cases, as outside vendors submit a large number of spurious requests daily.