The EB-1C Green Card qualifications are quite similar to the L-1A Executive/Manager criteria. There is a higher standard for qualification for the EB-1 Green Card than for the L-1A visa. To qualify, the employee must have been a manager or executive both abroad and in the U.S.
For the L-1 visa, the employee only needs to be sponsored for a managerial or executive position in the United States, but need not have held such a position abroad. Second, the employee must have supervised abroad and continue to supervise in the US other employees that are professionals. The manager or executive must not be a front-line manager, e.g. someone who supervises the lowest level of employees in the company, especially employees in positions that do not require a Bachelor’s degree or higher.