single market national, hold a diplomatic passport, or are flight crew members. Additionally, individual Schengen countries can impose airport transit visa requirements for nationals of other countries in urgent cases of mass influx of illegal immigrants. For example, nationals of Syria need ATVs for many but not all Schengen countries. Visas Schengen visas can be issued by any member state of the Schengen Area. Travellers must apply to the embassy or consulate of the country which they intend to visit. In cases of travellers visiting multiple countries in the Schengen Area, travellers must apply to their main destination's embassy or consulate. If the main destination cannot be determined, the traveller should apply for the visa at the embassy of the Schengen member state of first entry. Often, external service providers are contracted by certain diplomatic missions to process, collect and return visa applications. Schengen visa applications may not be submitted more than six months prior to the proposed date of entry into the Schengen Area. All countries' embassies may require applicants to provide biometric identifiers (ten fingerprints and a digital photograph) as part of the visa application process to be stored on the Visa Information System (VIS). Biometric identifiers are not collected from children under the age of 12. Travellers applying for a Schengen visa for the first time must apply in person and are subject to an interview by the consular officers. If biometric identifiers have been provided within the past 59 months, the applicant may not be required to provide biometric identifiers again. Providing that the visa application is admissible and there are no issues with the application, a decision must be given within 15 calendar days of the date on which the application was lodged. The standard application fee for a Schengen visa is EUR 80. There is a reduced application fee of EUR 40 for children aged 6 to 12. The visa application fee may be waived or reduced in order to 'promote cultural or sporting interests, interests in the field of foreign policy, development policy and other areas of vital public interest, or for humanitarian reasons or because of international obligations'. Where an application is submitted to an external service provider, an additional service fee may have to be paid. Schengen visas are valid for any country in the Schengen Area unless marked otherwise. Bulgaria, Cyprus and Romania also accept Schengen visas (even if limited