| Act No. 3846, as amended | November 11, 1931 | An Act Providing for the Regulation Of Radio Stations and Radio Communications in the Philippine Islands, and for Other Purposes |
| NTC Memorandum Circular No. 03-2-82 | February 2, 1982 | Identification of Amateur Club Radio Stations |
| MOTC Ministry Circular No. 82-077 | October 20, 1982 | Revised Regulations governing the Amateur Radio Service |
| NTC Memorandum Circular No. 14-11-82 | | Implementation of the Revised Amateur Regulations |
| NTC Memorandum Circular No. 01-01-84 | | Guidelines for the Registration of Amateur Clubs and Formation of an Interim Amateur Radio Advisory Council |
| MOTC Memorandum Circular No. 07-04-84 | | Lifetime Amateur Radio Station License |
| NTC Memorandum Circular No. 05-06-85 | | Recognition of Philippine Amateur Radio Association |
| NTC Memorandum Circular No. 07-08-86 | July 15, 1986 | Regulations, Guidelines and Procedures Governing the Installation and Operation of Amateur Repeaters |
| MOTC Ministry Circular No. 87-174 | February 3, 1987 | Revised Amateur Radio Regulations |
| NTC Memorandum Circular No. 02-03-87 | | Implementation of the Revised Amateur Regulations |
| NTC Memorandum Circular No. 01-03-88 | | Procedure in the Purchase of Radio Transceivers
from Abroad |
| NTC Memorandum Circular No. 02-03-90 | | Amending Memorandum Circular No. 02-03-87, series of 1987 |
| NTC Memorandum Circular No. 04-08-90 | February 6, 1990 | Sub-Allocation to Frequency Band 430-440 MHz |
| NTC Memorandum Circular No. 10-05-90 | | Sub-Allocation of Frequency Band 430-440 MHz |
| NTC Memorandum Circular No. 7-8-91 | | Reiteration of PARA Indorsement |
| NTC Memorandum Circular No. 9-4-94 | April 15, 1994 | Additional Guidelines for the Renewal of Amateur License and Application for Amateur Radio Examination |
| NTC Memorandum Circular No. 9-4-94A | November 14, 1994 | Amending Memorandum Circular 9-4-94 of Additional Guidelines for the Renewal of Amateur Radio License and Application for Amateur Radio Examination. |
| NTC Memorandum Circular No. 03-01-95 | January 16, 1995 | Sale, Importation and Use of Amateur Radio Equipment |
| NTC Memorandum Circular No. 6-7-97 | July 30, 1997 | Further amending Memorandum Circular 9-4-94A  |
| NTC Memorandum Circular No. 02-02-98 | February 10, 1998 | Extension of the Renewal of the Radio Station License Using Amateur Equipment Outside the Amateur Service Band |
| NTC Memorandum Circular No. 02-01-2000 | January 13, 2000 | Extending the Renewal of the Radio Station LLicense Using Amateur Equipment to Members of the Civil Groups |
| NTC Memorandum Circular No. 08-08-2003 | August 4, 2003 | Amending Section II- 2.2.1, of Memorandum Circular No. 02-03-87, Implementation of the Revised Amateur Regulations |
| DOTC Department Circular No. 2003-02 | December 5, 2003 | Amending Section IV-4.4.1 of Ministry Circular No. 87-174, the Revised Amateur Radio Regulations |
| DOTC Department Order No. 2004-40 | August 4, 2004 | Amending Department Order No. 2003-02  |
| NTC Memorandum Circular No. 17-11-2004 | November 9, 2004 | Amending Section 1-1.1 of Memorandum Circular No. 7-04-84, Lifetime Amateur Radio Station License |
| NTC Memorandum Circular No. 01-06-2011 | June 13, 2011 | Reconstitution of the new Amateur Radio Consultative Panel (ARCP) |
| NTC Memorandum Circular No. 03-08-2012 | August 29, 2012 | Revised Amateur Radio Regulations |
| NTC Memorandum Order No. 05-09-2012 | September 6, 2012 | Emergency Radio Communications Protocol for Radio Volunteers (NTC Task Force Bayanihan) |
| NTC Office Order No. 108-12-2012 | December 14, 2012 | Guidelines in the Assignment of Call Sign in the Amateur Radio Service |
| NTC Memorandum Circular No. 03-06-2014 | May 30, 2014 | Reconstituting the Amateur Radio Consultative Panel (ARCP) |
| NTC Office Order No. 81-08-2015 | | Clarification of Morse Code Requirements for Amateur Examination and Licensing |
| NTC Office Order No. 75-05-2016 | May 19, 2016 | Guidelines in the Application for Amateur Radio Examination and Issuance of Amateur Radio Station License (ARSL) / Radio Amateur Operator Certificate (RAOC) |
| NTC Office Order No. 76-05-2016 | May 19, 2016 | Guidelines in the Issuance of Special Permits for the Use of Vanity Call Signs and Special Event Call Signs in the Amateur Radio Service |
| NTC Office Order No. 183-12-2016 | December 2, 2016 | Guidelines in the Additional Allocation of Prefixes in the Amateur Radio Service |
| NTC Memorandum Circular No. 04-06-2017 | June 21, 2017 | Allocation of the Frequency Band, 5351.5-5366.5 KHz, for Amateur Radio Service on Secondary Basis |
| NTC Memorandum Circular No. 02-06-2019 | June 11, 2019 | Frequency Band Allocation and Types of Emissions for Amateur Radio Service |
| NTC Memorandum Order No. 03-03-2020 | March 18, 2020 | Extending the Validity of NTC Issued Permits, Certificates and Licenses during the COVID-19 Enhanced Community Quarantine |
