If you hold a passport from a country other than the ones described, you must obtain a visa to visit the United States. There are several types of non-immigrant visas, depending on the purpose of the visit to the United States. Religious Workers You must hold a visa that fits your purpose of travel. The consular officer determines the length of time and the number of times a visa may be used. This information is printed on the visa.
Some visas allow the bearer a designated number of entries, while others allow an indefinite number.
The maximum validity is 10 years, but many visas are limited to a shorter time. The validity of the visa does not designate the length of time that you may stay. Instead, at the port of entry, the INS determines how long the bearer may stay. The receipt will include a validation code which will be given over the phone when the appointment is made. The child's birth certificate must be submitted.