L VISAS
L-1A. An L-1A is an alien coming temporarily to perform services in a managerial or executive capacity for the same corporation or firm, or for the branch, subsidiary, or affiliate of the employer who employed him abroad for one continuous year within the three-year period (six months within the previous three years if the employer is eligible and has filed for a blanket L-1 approval and meets the requirements for expedited processing), immediately preceding the filing of the petition, in an executive, managerial, or specialized knowledge capacity.
L-1B. An L-1B is an alien coming temporarily to perform services that entail specialized knowledge for the same corporation or firm, or for the branch, subsidiary, or affiliate of the employer who employed him abroad for one continuous year within the three-year period (six months within the previous three years if the employer is eligible and has filed for a blanket L-1 approval and meets the requirements for expedited processing), immediately preceding the filing of the petition, in an executive, managerial, or specialized knowledge capacity.
Specialized knowledge is special knowledge of the employer’s product or its application in international markets or an advanced level of the knowledge of the employer’s processes and procedures.


