No, a labor certification is not required for Eb-1C petition.
Liu & Associates
The petitioner of EB-1C must be a U.S. employer, doing business for at least one year, that is an affiliate, a subsidiary, or the same employer as the firm, corporation or other legal entity that employed the foreign national abroad.
EB-1C, also known as classification of multinational managers or executives, is given to executives and managers of foreign companies who are transferred to the U.S.
A multinational manager or executive is eligible for this category if he or she has been employed outside the U.S. in the three years preceding the petition for at least one year by a firm or corporation and seeks to enter the U.S to continue service to that firm or organization. The employment must have been outside the United States in a managerial or executive capacity and with the same employer, an affiliate, or a subsidiary of the employer.