Section 6. Article 214 of the same Code, as amended, is further amended to read as follows:

"ARTICLE 214. Headquarters, branches and provincial extension units. — The Commission and its first, second and third divisions shall have their main offices in Metropolitan Manila, and the fourth and fifth divisions in the Cities of Cebu and Cagayan de Oro, respectively.

"The Commission, shall establish as many regional branches as there are regional offices of the Department of Labor and Employment, subregional branches or provincial extension units. There shall be as many labor arbiters as may be necessary for the effective and efficient operation of the Commission. Each regional branch shall be headed by an Executive Labor Arbiter."