| #R001 | operational | operational | mandatory | Direct Potable Reuse Regulations Effective Date | drinking water | requirement | October 1, 2024 date | The Office of Administrative Law approved the proposed Direct Potable Reuse regulations. | Upon filing with the Secretary of State | high |
| #R002 | operational | operational | mandatory | Statutory Deadline for DPR Criteria Adoption | drinking water | requirement | on or before December 31, 2023 date | AB 574 (Water Code, Division 7, Chapter 7.3) requires the State Water Board to adopt uniform water recycling criteria for DPR through raw water augmentation. | | high |
| #R003 | operational | operational | mandatory | Framework for Potable Reuse Regulation Deadline | drinking water | requirement | on or before June 1, 2018 date | Completion of the Framework satisfied the recommendation of AB 574 to establish a framework for the regulation of potable reuse projects. | | high |
| #R004 | design | operational | mandatory | DPR Criteria Expert Panel Membership Count | drinking water | requirement | 12 members | DDW has convened an expert panel to review proposed DPR criteria as required by Water Code section 13561.2. | | high |
| #R005 | operational | reporting | mandatory | Administrative Procedure Act Formal Public Comment Period | drinking water | requirement | 45 days | The formal public comment period required under the Administrative Procedure Act for the proposed DPR regulations. | | high |
| #R006 | operational | reporting | mandatory | Framework Second Edition Public Comment Period | drinking water | requirement | 30 days | The State Water Board released the Framework for a public comment period in September 2019. | Between September 3, 2019 and October 9, 2019 | high |
| #R007 | operational | reporting | mandatory | DPR Framework 2018 Public Comment Period | drinking water | requirement | 30 days | The State Water Board released the Framework for a public comment period in April 2018. | Between April 19, 2018 and May 20, 2018 | high |
| #R008 | design | operational | mandatory | Pathogen Monitoring Study Site Count | wastewater | requirement | 5 wastewater treatment plants | DPR-2 research project sampling plan for pathogen monitoring in wastewater. | Participating plants described in the quality assurance project plan | high |
| #R009 | operational | operational | guideline | Proposed DPR-5 Research Implementation Duration | drinking water, wastewater | requirement | 5 years | Proposed research plan to evaluate analytical methods for non-targeted analysis of low molecular weight compounds. | | high |
| #R010 | operational | operational | guideline | Proposed DPR-5 Research Funding Budget | drinking water, wastewater | requirement | 1.2 million dollars | Proposed budget to fully evaluate analytical methods for unknown chemical contaminants in recycled water. | | high |