United States of America - Work Skills & Ancestry - L-1B: Specialized Knowledge
Specialized knowledge means special knowledge possessed by an individual of the petitioning organization''s product, service, research, equipment, techniques, management, or other interests and its application in international markets, or an advanced level of knowledge or expertise in the organization''s processes and procedures.
Stay:
Initial stay is up to 3 years when coming to existing office; coming to new office-up to 1 year; extension of stay, one increment of up to 2 years. Total stay limited to 5 years.
L-2: Spouse or Child of L-1
The spouse and unmarried minor children of the beneficiary are entitled to L nonimmigrant classification, subject to the same period of admission and limits as the beneficiary, if the spouse and unmarried minor children are accompanying or following to join the beneficiary in the United States. Neither the spouse nor any child may accept employment unless he or she has been granted employment authorization.