January 22 – Fifty-one persons were either burned, suffocated, or leaped to their death when a blaze swept through a suburban factory in Manila. At least 79 others were seriously injured.[1]
January 25-26 – At least 30 persons were killed during a tropical storm, including 11 who were buried by a landslide and 7 fishermen who died at sea.[1]
February 3 – Thirty-one persons were killed when fire in an airliner engine forced the pilot to crash-land in Manila.[1]
February 27–28 – A national referendum was called where the majority of the barangays voted approved the following: a) The use by the President of his power to restructure the local governments in Greater Manila into an integrated system; b) the appointment by the President of the successors of local elective officials (outside the Greater Manila) whose terms of office expired on December 31, 1975; c) the manner the President has been exercising his powers under Martial Law and the Constitution and that the President should continue exercising the same powers; and d) allowing Martial law to continue, not to convene the Interim National Assembly and extend the terms of local officials by appointment, and suspend elections, pursuant to Presidential Decrees Nos. 1366, 1366-A and 1366-B.
April 15 – The Kabataang Barangay (KB) was created on April 15, 1975, by virtue of Presidential Decree No. 684. The decree provided for the organization of KB units in the 42,000 barangays all over the country with the purpose of giving the youth a definite role in community affairs.
May 1 – The Kabataang Barangay elections were held on May 1, 1975, in which about 3 million Filipino youths aged 15 to 18 years old participated.
November 1 – President Ferdinand Marcos issued Presidential Decree 824 creating the Metropolitan Manila Commission (MMC). It integrates the Philippine capital Manila and adjacent Quezon City with 2 cities and 12 municipalities of the province of Rizal and 1 municipality of the province of Bulacan.