Directly from the Labor Standards Laws:
(Minimum Age)
Article 56. An employer shall not employ children until the first 31st of March following their having fully reached the age of 15 years. 2. Notwithstanding the provisions of the preceding paragraph, outside of school hours, children above 13 full years of age maybe employed in occupations in enterprises other than those listed in items 1 through 5 of Annexed Table No. 1, and which involve light labor that is not harmful to the health and welfare of the children, with the permission of the administrative office. The same shall apply to children under 13 full years of age employed in motion picture production and theatrical performance enterprises.