Library of Congress, Washington USA

World Standards Cooperation Roundtable
In partnership with ANSI and the Library of Congress

The role of standardization in strategy, innovation and entrepreneurship
Promoting dialogue between leading academic institutions and standards organizations

The Library of Congress, Washington DC, USA, 26-27 June 2013


As the visa application process is significantly different for entry into the United States than the process in many other countries, ANSI has prepared the following information so that delegates understand the steps they need to take.

STEP ONE: Be Informed

We urge you to carefully review all the information on procedures for nonimmigrant visa application provided by the U.S. State Department.
The following online location provides an official source of information about U.S. visa policy and procedures:

Please follow all instructions provided on the website for your local U.S. Embassy or Consulate General website to avoid costly delays.
U.S. visa policy permits citizens of certain countries to travel to the U.S. without a visa. For information about whether you may require a visa, please find such information at the following location online:

Your application must be submitted through the U.S. Embassy or Consulate General that has jurisdiction over your place of residence. The following is a link to the list of all U.S. Embassies and Consulates worldwide:

STEP TWO: Apply Early

Due to potentially long wait times for a visa interview and possible requirements for additional processing, applicants are encouraged to submit their visa applications as early as possible – no less than 30 days and ideally at least 90 days in advance of the intended travel. Wait times for a visa interview can range from a few days to several months, depending on location and time of year.
Applicants who are engaged in certain sensitive scientific or technical fields may be subject to additional administrative processing procedures, which can add additional time to the visa application procedures, in some cases up to 120 days.

STEP THREE: Be Prepared

Applicants for U.S. visas should come to the visa interview with a thorough understanding of their travel plans and logistics. They should bring their invitation letter, copies of meeting agendas, travel itineraries and other documents on official letterhead, as well as documentation to help demonstrate “strong ties” to their home country. For information on what constitutes “strong ties,” visit:
To obtain an invitation letter, please e-mail providing the following information:

  • name (LAST, first, middle),
  • organization,
  • complete postal address (including country),
  • date of birth (MM/DD/YYYY),
  • passport number and issuing country,
  • e-mail address,
  • the meeting you are planning to attend, and
  • the dates and location of the meeting.

STEP FOUR: Inform ANSI of Problems Early

Should you encounter any problems in the visa application process, please contact the issuer of your invitation letter as soon as possible. While ANSI has no authority to influence consular decisions, it may be possible to provide guidance on additional steps that could be taken, or otherwise be of assistance.