Title
Filipino as Official Language Act
Law
Commonwealth Act No. 570
Decision Date
Jun 7, 1940
Commonwealth Act No. 570 establishes the Filipino national language as an official language in the Philippines, requiring textbooks and education materials to be written and approved in the national language to promote its use and understanding.

Official status scope and primary-school materials

  • Section 2 requires that all textbooks for primary schools written in the national language, or necessary for the propagation thereof, be prepared.
  • Section 2 requires preparation of these textbooks for use through the medium of public and private schools and other agencies and methods of popularization.
  • Section 2 mandates supervision of textbook preparation by the Bureau of Education.
  • Section 2 requires approval by the Institute of National Language insofar as the language form is connected.

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