The US Embassy London has issued a notice regarding extremely limited US Visa processing in July and August 2012 due to the Olympics in London. In addition, US Embassy London has expanded its Visa Reissuance Program to additional temporary visa categories including the H-1B visa, H-4 visa, C-1 visa, D visa, and J-1 visa. Details are below.
Appointments must be scheduled through the Operator Assisted Information Service. Callers within the United Kingdom should dial 09042-450-100. Calls to this line will be charged at £1.23/min plus network extras. Callers from the United States should call 1-866-382-3589. Callers will be charged a fixed rate of $16:00 payable by credit card (Visa, MasterCard, American Express only).
US Embassy London is also encouraging travelers who plan on entering the United States without a visa under the Visa Waiver Program by air or sea carrier, and who do not have travel authorization approval under the Electronic System for Travel Authorization (ESTA), to register as soon as possible for summer travel. If an ESTA registration is denied, a visa will be required.