AN ACT TO PROVIDE FOR THE REHABILITATION AND MODERNIZATION OF THE PHILIPPINE NATIONAL RAILWAYS BY AMENDING SECTION ONE, THREE, FIVE, NINE, ELEVEN, TWELVE, FOURTEEN, AND SEVENTEEN OF REPUBLIC ACT NUMBERED FORTY-ONE HUNDRED FIFTY-SIX, ENTITLED "AN ACT CREATING THE PHILIPPINE NATIONAL RAILWAYS, PRESCRIBING ITS POWERS, FUNCTIONS AND DUTIES, AND PROVIDING FOR THE NECESSARY FUNDS FOR ITS OPERATIONS."