• EXECUTIVE ORDER NO. 492 - JANUARY 1, 1978 - MODIFYING THE RATES OF IMPORT DUTY ON CERTAIN IMPORTED ARTICLES AS PROVIDED UNDER REPUBLIC ACT NO. 1937, OTHERWISE KNOWN AS THE TARIFF AND CUSTOMS CODE OF THE PHILIPPINES, AS AMENDED, IN ORDER TO IMPLEMENT THE MARGINS OF TARRIF PREFERENCE IN ACCORDANCE WITH THE ASEAN AGREEMENT ON PREFERENTIAL TRADING ARRANGEMENTS WITH RESPECT TO CERTAIN ARTICLES NEGOTIATED DURING THE FOURTH MEETING OF THE ASEAN COMMITTEE ON TRADE AND TOURISM

• EXECUTIVE ORDER NO. 493 - JANUARY 5, 1978 - INCREASING CERTAIN ADMINISTRATIVE SERVICE FEES IN THE OFFICE OF THE PRESIDENT

• EXECUTIVE ORDER NO. 494 - JANUARY 6, 1978 - CREATING A SPECIAL COMMITTEE FOR THE RESETTLEMENT OF KAINGINEROS WITHIN THE MT. MAKILING FOREST RESERVE

• EXECUTIVE ORDER NO. 495 - JANUARY 13, 1978 - ESTABLISHING THE RULES AND REGULATIONS OF THE FOREIGN SERVICE COMPENSATION DECREE OF 1978

• EXECUTIVE ORDER NO. 496 - JANUARY 31, 1978 - EXTENDING THE TERM OF THE PRESIDENTIAL COMMISSION ON REORGANIZATION CREATED UNDER EXECUTIVE ORDER NO. 281, SERIES OF 1970

• EXECUTIVE ORDER NO. 497 - JANUARY 31, 1978 - CREATING COMMITTEES FOR THE FIFTH SESSION OF THE UNITED NATIONS CONFERENCE ON TRADE AND DEVELOPMENT (UNCTAD V)

• EXECUTIVE ORDER NO. 498 - JANUARY 31, 1978 - EXTENDING THE TERM OF THE PRESIDENTIAL COMMITTEE TO STUDY GOVERNMENT CORPORATIONS CREATED UNDER EXECUTIVE ORDER NO. 464, SERIES OF 1976

• EXECUTIVE ORDER NO. 499 - FEBRUARY 15, 1978 - GOVERNING THE RELEASE OF TRAVEL TAXES COLLECTED UNDER R.A. NO. 1478 AND 6141 (AS AMENDED)

• EXECUTIVE ORDER NO. 500 - MARCH 21, 1978 - ESTABLISHING A NEW SYSTEM OF CAREER PROGRESSION FOR PUBLIC SCHOOL TEACHERS

• EXECUTIVE ORDER NO. 501 - MARCH 30, 1978 - CREATING A NATIONAL COMMITTEE TO TAKE CHARGE OF THE CELEBRATION OF PHILIPPINE INDEPENDENCE DAY ON 12 JUNE 1978

• EXECUTIVE ORDER NO. 502 - APRIL 30, 1978 - CREATING AN EXECUTIVE COMMITTEE TO TAKE CHARGE OF THE PLANNING AND EXECUTION OF COMMEMORATIVE ACTIVITIES FOR THE 1978 MANUEL L. QUEZON NATIONAL CENTENNIAL YEAR

• EXECUTIVE ORDER NO. 503 - MAY 29, 1978 - CREATING A PHILIPPINE COUNTERPART FOR THE PERMANENT JOINT PHILIPPINE GERMAN DEMOCRATIC TRADE COMMITTEE

• EXECUTIVE ORDER NO. 504 - MAY 31, 1978 - DIRECTING THE CHAIRMAN OF THE COMMISSION ON AUDIT TO MAKE AN EXAMINATION INTO THE BUSINESS AFFAIRS, ADMINISTRATION AND CONDITION OF PAYORS OF THE COCONUT CONSUMERS STABILIZATION FUND LEVY AND OF MANUFACTURERS OF SUBSIDIZED COCONUT-BASED PRODUCTS

• EXECUTIVE ORDER NO. 505 - JUNE 9, 1978 - REVOKING EXECUTIVE ORDER NO. 287, SERIES OF 1959, AND EXECUTIVE ORDER NO. 374, SERIES OF 1960, AUTHORIZING THE USE OF LOW PLATE NUMBERS BY HIGH GOVERNMENT OFFICIALS

• EXECUTIVE ORDER NO. 506 - JUNE 30, 1978 - EXTENDING THE TERM OF THE PRESIDENTIAL COMMITTEE TO STUDY GOVERNMENT CORPORATIONS CREATED UNDER EXECUTIVE ORDER NO. 464, SERIES OF 1976

• EXECUTIVE ORDER NO. 507 - JULY 14, 1978 - IMPOSING AN ADDITIONAL 10% SALES TAX ON IMPORTED AIRCONDITIONING UNITS, COMPONENTS AND PARTS

• EXECUTIVE ORDER NO. 508 - SEPTEMBER 1, 1978 - MODIFYING THE RATES OF IMPORT DUTY ON CERTAIN IMPORTED ARTICLES AS PROVIDED UNDER PRESIDENTIAL DECREE NO. 1464, OTHERWISE, KNOWN AS THE TARIFF AND CUSTOMS CODE OF 1978, IN ORDER TO IMPLEMENT THE MARGINS OF TARIFF PREFERENCE IN ACCORDANCE WITH THE ASEAN AGREEMENT ON PREFERENTIAL TRADING ARRANGEMENTS WITH RESPECT TO CERTAIN ARTICLES NEGOTIATED DURING THE THIRD MEETING OF THE TRADE PREFERENCES NEGOTIATING GROUP AND THE FIFTH AND SIXTH MEETINGS OF THE ASEAN COMMITTEE ON TRADE AND TOURISM

• EXECUTIVE ORDER NO. 509 - SEPTEMBER 30, 1978 - CREATING THE GENERAL MILITARY COUNCIL

• EXECUTIVE ORDER NO. 510 - OCTOBER 16, 1978 - CREATING COMMITTEES IN CONNECTION WITH THE HOSTING BY THE PHILIPPINES OF THE 35TH SESSION OF THE ECONOMIC AND SOCIAL COMMISSION FOR ASIA AND THE PACIFIC (ESCAP)

• EXECUTIVE ORDER NO. 511 - OCTOBER 18, 1978 - STRENGTHENING THE SUPERVISORY AUTHORITY OF THE MINISTRY OF EDUCATION AND CULTURE OVER PUBLIC AND PRIVATE COLLEGES AND UNIVERSITIES

• EXECUTIVE ORDER NO. 512 - OCTOBER 26, 1978 - CREATING A TASK FORCE ON THE FORMULATION OF A NATIONAL ACTION PROGRAM ON SCIENCE AND TECHNOLOGY

• EXECUTIVE ORDER NO. 513 - NOVEMBER 16, 1978 - REORGANIZING THE PHILIPPINE PORTS AUTHORITY

• EXECUTIVE ORDER NO. 514 - DECEMBER 19, 1978 - PRESCRIBING NEW SALARY RATES FOR THE CHAIRMAN AND MEMBERS OF THE NATIONAL POLICE COMMISSION

• EXECUTIVE ORDER NO. 515 - DECEMBER 26, 1978 - TRANSFERRING THE APPROPRIATIONS FOR THE PAMBANSANG KATIPUNAN NG KABATAANG BARANGAY NG PILIPINAS FROM THE MLG TO THE OFFICE OF THE PRESIDENT

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