Memorandum Circular 2017-01: Guidelines in the Processing of Applications for Discharge Permit Exemption.
    Memorandum Circular 2017-02: Reconstitution of Public Hearing Committee.
    Memorandum Circular 2017-02A: Composition of the Public Hearing Committee.
    Memorandum Circular 2017-03: Revised Guidelines in Implementing the Zoning of Aquaculture Structures in Sampaloc Lake by Amending certain Provisions of Memorandum Order No. 43, Series of 2005 and Inclusion of other Rules and Regulations.
    Memorandum Circular 2017-04: Pagpapatibay sa mga Susog sa Kautusan Blg. 2010-03, "Gabay sa Pagpapatupad ng mga Patakaran at Pamantayan sa Paggamit at Pagsasaayos ng mga Palaisdaan sa Lawa ng Palakpakin."
    Memorandum Circular 2017-05: Rules and Regulations Implementing the New General Effluent Standards pursuant to LLDA Board Resolution No. 523, s 2017, entitled " Adoption of Department Administrative Order (DAO) No. 2016-08 of the Department of Environment and Natural Resources as the New Effluent Standards for the Continuous Implementation of the Environmental Users Fee System (EUFS) and the Water Quality Guidelines for Surface Waters Within the Laguna de Bay Region and for Other Purposes."
    Memorandum Circular 2017-05A: Revised Citizen's Charter.
    Memorandum Circular 2018-01: Guidelines on Fishermen Registration and Identification System in the Laguna de Bay.
    Memorandum Circular 2018-02: Suspension of Issuance of Shoreland Lease Agreement / Shoreland Occupancy Permits.
    Memorandum Circular 2018-03: Adoption of Official Classifications of Water Bodies within the Laguna de Bay Region.
    Memorandum Circular 2018-04: Revised Rule and Regulations on the Multiple Use and Management of Mohicap Lake.
    Memorandum Circular 2020-12: Registration Fees for the Pollution Control Officers' Online Trainings and Programs.
    Memorandum Circular 2020-11: Guidelines for the Conduct of Webinars for LLDA's Continuing Environmental Education Program (CEEP) and Continuing Environmental Education Seminar (CEES) for Pollution Control Officers (PCOs).
    Memorandum Circular 2020-10: 2020 Citizen's Charter.
    Memorandum Circular 2020-09: Extension of Deadlines for Self-Monitoring Report, Discharge Permit Renewals and Filing of Permit to Operate Fishpens and Fishcages Until August 31, 2020 and Imposing Administrative Fine of P5,000.00 Due to Late Filing/Payment of Discharge Permit and/or Late Submission of Self-Monitoring Reports and Imposition of 2.50% Monthly Surcharge in Case of Fishpen and Fishcage Permits Effective September 1, 2020.
    Memorandum Circular 2020-08: Rules and Procedures for Online Administrative Hearings before the Legal and Adjudication Division of Laguna Lake Development Authority, Pursuant to Board Resolution No. 584, series of 2020, as Approved by the Board of Directors on June 24, 2020.
    Memorandum Circular 2020-07: Extension of Deadline and Alternative Modes of Filing and Submissions.
    Memorandum Circular 2020-06: Suspension of issuance of Shoreland Development Clearance.
    Memorandum Circular 2020-05: Guidelines on the Application for Conditional LLDA Clearance through the LLDA - Online Clearance and Content Management System (LLDA-OCCMS).
    Memorandum Circular 2020-04: Modifying Item "A" of Memorandum Circular No. 01, Series of 2020 for the Purpose of Fishpen Registration in the Laguna de Bay.
    Memorandum Circular 2020-03: Suspension of the Conduct of the Continuing Environmental Education Program/Seminar.
    Memorandum Circular 2020-02: Suspension of Renewal of Regulatory Permits, Submission of Reportorial Documents and other Regulatory Requirements.
    Memorandum Circular 2020-01: Extension of Application for Permit to Operate Fishpen and Fishcage in the Laguna de Bay for CY 2020.
    Memorandum Circular 2021-01: Revised Guidelines on the Use of Artificial Feed in the Laguna De Bay.
    Memorandum Circular 2021-02: Additional Guidelines on Registration Fees for the Pollution Control Officers' Online Trainings and Programs as per Memorandum Circular No. 2020-012.
    Memorandum Circular 2021-03: Clarification on the Implementation of Section 10.0 of DENR Administrative Order No. 2016-08 vis-à-vis LLDA Board Resolution No. 523, Series of 2017, LLDA Memorandum Circular No. 2017-05 and DENR-EMB Memorandum Circular No. 2021-01.
    Memorandum Circular 2021-04: Revised Guidelines for Implementing Kautusan Blg. 2010-05 "Gabay sa Pagpapatupad ng mga Patakaran at Pamantayan sa Paggamit at Pagsasaayos ng mga Palaisdaan sa Lawa ng Yambo" and Inclusion of other Rules and Regulations on the Sustainable Use, Management and Development of the Yambo Lake Basin.
    Memorandum Circular 2021-05: Revised Guidelines for Implementing Kautusan Blg. 2010-04 "Gabay sa Pagpapatupad ng mga Patakaran at Pamantayan sa Paggamit at Pagsasaayos ng mga Palaisdaan sa Lawa ng Pandin" and Inclusion of other Rules and Regulations on the Balanced and Sustainable Use, Management and Development of the Pandin Lake Basin.
    Memorandum Circular 2022-01: Extension of Deadline for Filing of Registration/Renewal of Privilege to Operate (pto) Fishpens and Fishcages in Laguna de Bay for CY 2022.
    Memorandum Circular 2022-02: Implementing Rules and Regulations of Board Resolution No. 600 Series of 2021.
    Memorandum Circular 2022-04: Implementing Guidelines for carrying out the Tadlac Lake Master Development Plan formulated by LLDA in 2008 and Revived in 2007 which aims to provide livelihood opportunities to the residents of Barangay Tadlac and to ensure the Sustainable Environmental Mmanagement of the lake.
    Memorandum Circular 2022-05: Guidelines for the Evaluation and Approval of Eligible Projects for Funding under the Area Water Quality Management Fund.
    Memorandum Circular 2022-06: Extension of Deadline for Filing of Registration / Renewal of Privilege to Operate (PTO) Fishpens and Fishcages in Laguna de Bay for CY 2022.
    Memorandum Circular 2022-07: Guidelines in the Speedy Disposition of Cases Pending before the Public Hearing Committee.