CSC MC 01, s. 1990: Attendance of Government Chemical Engineers to the 51st National Convention
January 8, 1990
CSC MC 03, s. 1990: Authority to Participate on Official Travel in the Forthcoming Plebiscite on the Organic Act for the Cordillera Autonomous Region
January 18, 1990
CSC MC 04, s. 1990: Attendance of Women in Government to the "Araw ng Kababaihan" on March 8, 1990, "Second National Congress of Women in Government" on March 30, 1990 and "The Joint GO and NGO Women's Congress" on March 31, 1990
February 1, 1990
CSC MC 05, s. 1990: Authority for Women Delegates from Government Agencies in Region VIII to Attend the Congress of Women on March 15, 1990 at the People's Center in Tacloban City, Amending M.C. No. 40, S. 1989
February 2, 1990
CSC MC 07, s. 1990: 1990 Government Internship Program
February 5, 1990
CSC MC 09, s. 1990: Attendance of Government Personnel to the 3rd Regional Convention/Seminar of the New Government Supply Officers Association of the Philippines, Inc. (NGSOAPI) on March 29-30, 1990 at the Philippine Social Science Center, Don Mariano Marcos Avenue, Quezon City
February 22, 1990
CSC MC 11, s. 1990: Attendance of Government Personnel to the Seminar-Workshop of the Association of Special Libraries of the Philippines
March 5, 1990
CSC MC 12, s. 1990: Attendance of Government Personnel to tthe 4th International Convention
March 5, 1990
CSC MC 17, s. 1990: The Search for the 1990 Presidential and Civil Service Commission Awardees for Outstanding Public Service, Pursuant to Executive Order Numbers 334 and 292
March 30 1990
CSC MC 22, s. 1990: Extension of Deadline for the Submission of Nominations for the Outstanding Public Officials and Employees Awards under Republic Act No. 6713
April 26, 1990