The L-1B visas are sought by those organizations that hope to benefit from the specialized knowledge of a foreign worker.
Each such document is granted to a non-immigrant, a foreign national who will be performing duties on a temporary basis within the sponsoring organization.
A worker with some type of specialized knowledge knows more than similar American workers about the systems, services or products of a firm, a corporation, a company or other entity.
For example, such a worker might possess a highly developed technical expertise in some specific area.
Alternatively, he or she might be able to share an exclusive understanding of a company's products, services, methods of production, its organizational make-up or its marketing strategies.
It could be that the specialized individual understands how to promote the company's products or services in the international market.
Finally, it is possible that the worker's intimate understanding of procedures, methods or systems has been sought by the supporting organization.
The United States has been careful to prevent the entrance of any male or female workers who might not be acceptable employees.
The provisions in regard to the L-1B visa state that the person who receives that document should have been employed by the foreign division of the sponsoring company for at least one year.
Furthermore, during that year or more of employment, he or she should have been working in a position that required specialized knowledge.
By the same token, the United States has made it clear which sorts of organizations can sponsor someone with an L-1B visa.
A company must petition the government for permission to become such a sponsor.
The petitioning company must have an affiliation with the appropriate foreign entity.
No company can simply claim to have such an affiliation.
It must provide the government with acceptable proof of that fact.
While those men and women who have been granted one of the specialized workers visas are able to come into the United States for only a temporary period of employment, that temporary period is far more than six months.
In fact, when first obtained, any of the specialized worker visas allows the visa-holder to stay in the United States for three years.
However, a company may find the shared knowledge to be so valuable that the worker's stay needs to be extended.
In that case, his or her time in the country can be lengthened to five years.
If you are looking for more information or assistance with visa, it is best to consult an immigration attorney service as they are conversant with the latest in citizenship and immigration regulations.
They would be able to guide you with filing the application, completing the documentation and assisting you with the visa interview process.
Oftentimes, people do not have the time to get all the paperwork in order but as immigration attorney work and liaison with a multitude of government agencies, they can be of assistance in helping you with your specific visa requirements.