INA § 101(a)(15)(L), 8 CFR § 214.2(l)

An Intracompany Transferee. . .

The employee must have worked abroad for the foreign company for a continuous period of ONE YEAR in the preceding THREE YEARS.

. . . between qualifying companies. . .

The foreign company for which the employee has worked for at least one year abroad must possess shared ownership with the sponsoring U.S. company in a specific manner recognized by U.S. business laws.

. . . during the entire period of stay in the U.S. . .

Both foreign and U.S. companies must be qualifying organizations that are actively engaged in business during the ENTIRE PERIOD of employee assignment to the U.S.

. . .who was employed abroad in a specialized capacity. . .  

The employee to be transferred must have been employed abroad in an EXECUTIVE or MANAGERIAL position (L-1A) or a position requiring SPECIALIZED KNOWLEDGE (L-1B).