L1 Visa, Intra Company Transferees

L1 visa is an intra company transfer visa. It is a permit to work for a company in USA, to which you are transferred from the parent or the sister concern company of your country.

Requirements

L1 visa is filed by your company, and needs to be approved by the USCIS. The requirements for L1 visa are:

It can be issued only to an L1-A(Executive, Manager) or to a person with L1-B(specialized knowledge worker).
Individuals cannot apply for an L1 visa. Your employer must file a petition with the U.S. Citizenship and Immigration Services (USCIS) on your behalf for L1 sponsorship.

The person must have worked for at least one year within the past three years and you will be performing duties in the U.S. for the same employer or an affiliate.
Maximum limit for L1(A) visa is 7 years for executives, and managers. And 5 years for people with specialized skills L1(B).
The L-1 petition must specify, that both the U.S. and the parent company involved are qualified organizations.
A letter from US based company, justifying the need of the person.