OCA Circular No. 1-91 – IMPLEMENTATION OF CIVIL SERVICE COMMISSION (CSC) MEMORANDUM CIRCULAR NO. 04 SERIES OF 1991, GUIDELINES AND RULES ON ABSENTEEISM AND TARDINESS

OCA Circular No. 2-91 – PRESIDENTIAL DECREE NO. 1818 (COURT INJUNCTIONS AGAINST NATIONAL POWER CORPORATION)

OCA Circular No. 3-91 – SERVICE OF WRITS AND COURT PROCESSES IN CONNECTION WITH CASES INVOLVING FOREIGN GOVERNMENTS OR INSTRUMENTALITIES THEREOF

OCA Circular No. 4-91 – LETTER-COMPLAINT AGAINST SOLICITATIONS FOR CONTRIBUTIONS BY COURT PERSONNEL

OCA Circular No. 11-91 – AMENDED S.C. FORM NO. 01 (MONTHLY REPORT ON CASES)

OCA Circular No. 13-91 – INDEFINITE SUSPENSION OF ATTY. RAMON M. MIRANDA FROM THE PRACTICE OF LAW

OCA Circular No. 14-91 – SUSPENSION OF ATTY. FRANCISCO L. DARIA FROM THE PRACTICE OF LAW

OCA Circular No. 15-91 – SUSPENSION OF ATTY. ESCOLASTICO R. VIOLA FROM THE PRACTICE OF LAW

OCA Circular No. 16-91 – INDEFINITE SUSPENSION OF ATTY. ERNESTO L. LUMAYA FROM THE PRACTICE OF LAW

OCA Circular No. 17-91 – DISMISSAL OF JUDGE MANUEL M. CALANOG, JR. FROM THE ROLL OF JUDGES

OCA Circular No. 19-91 – PRESCRIBING STRICT COMPLIANCE WITH SECTIONS 3 AND 5 IN RELATION TO SECTION 10 OF RULE 13 OF THE RULES OF COURT ON SERVICE OF PETITION OR MOTION FOR EXTENSION

OCA Circular No. 28-91 – ADDITIONAL REQUISITES FOR PETITIONS FILED WITH THE SUPREME COURT AND THE COURT OF  APPEALS TO PREVENT FORUM SHOPPING OR MULTIPLE FILING OF PETITIONS AND COMPLAINTS

OCA Circular No. 30-91 – GUIDELINES ON THE FUNCTIONS OF THE COURT ADMINISTRATOR

OCA Circular No. 38-91 – SUSPENSION OF ATTY. HAROLD M. HERNANDO FROM THE PRACTICE OF LAW

OCA Circular No. 39-91 – ISSUANCE OF THE NEW TAXPAYERS IDENTIFICATION NUMBER (TIN) TO TAXPAYERS

OCA Circular No. 43-91 – RULES IMPLEMENTING R.A. 7041 REQUIRING THE REGULAR PUBLICATION OF EXISTING VACANT POSITIONS IN GOVERNMENT OFFICES

OCA Circular No. 51-91 – SUSPENSION OF ATTY. BENITO JALONDOON, SR. FROM THE PRACTICE OF LAW