Section 5
SEC. 5. (a) The Secretary of Finance shall prescribe the rules and give appropriate instructions so that only the notes legally issued by the Philippine National Bank shall be stamped or countersigned. The treasurer of the National Government shall certify to the Secretary of Finance the denominations and serial numbers of the notes of the Philippine National Bank which may be identified as having been illegally released for circulation on or after January first, nineteen hundred and forty-two, and with the exception of the notes so identified all the other notes shall be considered legally issued. Any note which has been put in circulation by the enemy as a note of the Philippine National Bank, has no value and shall be void although it might have been stamped or countersigned through negligence or inadvertence. (b) After the expiration of the prescribed period of sixty days, and subject to the provisions of the preceding paragraph, the notes of the Philippine National Bank that have been stamped or countersigned in accordance with this Act shall be of legal and valid use in all classes of transactions; and in so far as said notes are concerned, the restrictions contained in executive Ordere Numbered Twenty-five of the President of the Commonwealth promulgated on November eighteen, nineteen hundred and forty-four, are hereby lifted and declared ineffective. (c) After the expiration of the prescribed period of sixty days, all notes of the Philippine National Bank which have not been stamped or countersigned in accordance with this Act shall be null and void.