A business trip to the United States can be a difficult undertaking for foreign nationals outside the United States. This is due to the fact that government officials are responsible for adjudicating visa applications must examine the application in accordance with the provisions of the United States Immigration and Nationality Act and other relevant federal law.
For example, this would occur if an individual applied for a business visa, obtained approval, traveled to abroad, and remains indefinitely. As a US B1 visa will be used strictly for non-immigrant a Consular Officer must examine New Zealand ETA Visa that have to be satisfied that the applicant will use the visa to immigrant intent. This is where "strong ties" vs. "Weak ties" analysis comes into play.
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That said, there are businesses and other work visa categories aside from B1. For example, the L-1 visa allows the visa holder to have "dual intent". This means that the visa holder can maintain the present intention to travel to the United States for a temporary purpose, but it also has, perhaps long term, the intention to emigrate as well.
A NZ visa H-1 is a dual intent travel document as well. Apart from the fact that section 214 (b) does not apply to some other business visa categories, Consular Officers still have to judge the benefits of the visa application to ensure that the applicant is not acceptable to the island countries.
In addition, officers also should be alert for fraud and misrepresentation in their adjudication as a Consular Officer, depending on the type of application, can be tasked with making some of the findings of fact.