AN ACT DECLARING A ONE-TIME AMNESTY ON CERTAIN TAX AND DUTY LIABILITIES, INCLUSIVE OF FINES, PENALTIES, INTERESTS AND OTHER ADDITIONS THERETO, INCURRED BY BUSINESS ENTERPRISES OPERATING WITHIN THE SPECIAL ECONOMIC ZONES AND FREEPORTS CREATED UNDER PROCLAMATION NO. 420 SERIES OF 1994, PROCLAMATION NO. 216, SERIES OF 1993, PROCLAMATION NO. 984, SERIES OF 1997 AND EXECUTIVE ORDER NO. 80, SERIES OF 1993, PURSUANT TO SECTION 15 OF REPUBLIC ACT NO. 7227, AS AMENDED, AND FOR OTHER PURPOSES