Advice Letters

California Public Utilities Commission (CPUC) - Index of Advice Letters

Pending

• 2025-12-19 Advice Letter 420-W UF Surcharge Increase
• 2025-12-19 Advice Letter 419-W Forms and Rules Update
• 2025-11-20 Advice Letter 417-W Rate Base Offset (pdf)
• 2025-11-17 Advice Letter 416-W 2026 Step Increase (pdf)
• 2025-11-07 Advice Letter 415-W WRAM Compliance Filing (pdf)
• 2025-11-07 Advice Letter 407-W-A 2024-Sep.25, 2025 Interim Rates True-Up (pdf)

Approved

2026

• 2026-01-01 Advice Letter 418-W Reserve Accounts Amortization

2025

• 2025-09-26 Advice Letter 406-W-A 2025 Step Increase (pdf)
• 2025-08-01 Advice Letter 414-W Reserve Accounts Amortization (pdf)
• 2025-06-11 Advice Letter 409-W Compliance Filing per D.24-12-030 (pdf)
• 2025-06-10 Advice Letter 408-W COVID-19 Amortization (pdf)
• 2025-06-01 Advice Letter 413-W CAP Income Guidelines Update (pdf)
• 2025-04-15 Advice Letter 411-W Update Preliminary Statement (pdf)
• 2025-04-08 Advice Letter 410-W Water Lease Agreement (pdf)
• 2025-01-01 Advice Letter 404-W - UF Surcharge (pdf)

2024

• 2024-06-01 Advice Letter 402-W - LIRA Income Guidelines Update (2024-2025) (pdf)
• 2024-05-07 Advice Letter 403-W Water Lease Agreement (pdf)
• 2024-04-30 Advice Letter 401-W - Water Lease Agreement (pdf)
• 2024-03-13 Advice Letter 400-W Water Lease Agreement (pdf)
• 2024-01-01 Advice Letter 398-W Update UF Surcharge (pdf)
• 2024-01-01 Advice Letter 396-W - 2024 Interim Rates (pdf)

2023

• 2023-11-17 Advice Letter 397-W - Water Lease Agreement (pdf)
• 2023-07-13 Advice Letter 394-W - Lead and Copper Rule Revisions Memorandum Account (pdf)
• 2023-06-30 Advice Letter 393-W - Water Lease Agreement (pdf)
• 2023-06-06 Advice Letter 392-W - Water Lease Agreement (pdf)
• 2023-06-01 Advice Letter 391-W LIRA Income Guidelines Update (pdf)
• 2023-05-01 Advice Letter 390-W Deactivation Stage 2 (pdf)
• 2023-01-12 Advice Letter 389-W Update Drinking Water Fees Memorandum Account (pdf)
• 2023-01-01 Advice Letter 388-W Sativa LIRA Update (pdf)
• 2023-01-01 Advice Letter 382-W - CPUC Fee 0.8 Percent (pdf)
• 2023-01-01 Advice Letter 378-W Proforma 2022 (pdf)

2022

• 2022-12-22 Advice Letter 399-W Update Sativa Production Cost Balancing Account (pdf)
• 2022-12-22 Advice Letter 387-W Sativa Production Cost Balancing Account (pdf)
• 2022-12-22 Advice Letter 386-W Sativa Environmental & Compliance Memo Account (pdf)
• 2022-12-22 Advice Letter 384-W Sativa LIRA (pdf)
• 2022-12-22 Advice Letter 383-W Sativa Rate & Update Forms (pdf)
• 2022-12-16 Advice Letter 381-W - Water Lease Agreement (pdf)
• 2022-12-16 Advice Letter 380-W - Water Lease Agreement (pdf)
• 2022-12-01 Advice Letter 379-W - Water Lease Agreement (pdf)
• 2022-09-15 Advice Letter 376-W Update Forms 7, 8, & 16 (pdf)
• 2022-09-15 Advice Letter 375-W Reserve Accounts Amortization (pdf)
• 2022-09-02 Advice Letter 374-W Water Lease Agreement (pdf)
• 2022-08-09 Advice Letter 373-W Water Lease Agreement (pdf)
• 2022-08-08 Advice Letter 372-W Modify Rule No. 9 (pdf)
• 2022-08-08 Advice Letter 371-W Water Lease Agreement (pdf)
• 2022-07-18 Advice Letter 369-W Activation Stage 2 of Schedule 14.1 (pdf)
• 2022-06-10 Advice Letter 368-W-A (pdf)
• 2022-05-19 Advice Letter 364-W Reserve Accounts Amortization (pdf)
• 2022-05-16 Advice Letter 366-W LIRA Income Guidelines (pdf)
• 2022-05-16 Advice Letter 365-W IT Rate Base Offset (pdf)
• 2022-05-10 Advice Letter 367-W Water Lease Agreement (pdf)
• 2022-02-17 Advice Letter 363-W Water Lease Agreement (pdf)
• 2022-02-10 Advice Letter 362-W 2021 Interim Rates True-Up (pdf)
• 2022-01-06 Advice Letter 361-W Drinking Water Fees MA (pdf)

2021

• 22021-12-16 Advice Letter 360-W Update Forms (pdf)
• 2021-12-16 Advice Letter 359-W Step Increase 2022 (pdf)
• 2021-12-10 Advice Letter 395-W-A Drinking Water Fees Balancing Account (pdf)
• 2021-12-09 Advice Letter 358-W Water Lease Agreement (pdf)
• 2021-09-21 Advice Letter 357-W LIRA (pdf)
• 2021-08-31 Advice Letter 356-W 2020 TCJA Refund (pdf)
• 2021-08-13 Advice Letter 385-W Sativa Transaction Cost Memorandum Account (pdf)
• 2021-08-05 Advice Letter 355-W Extension of Emergency Customer Protections (pdf)
• 22021-06-16 Advice Letter 353-W Transition Plans for the Expiration of Emergency Customer Protections (pdf)
• 2021-05-04 Advice Letter 354-W LIRA Income Guidelines Update (pdf)
• 2021-03-18 Advice Letter 352-W Compliance After 12 Months per D.19-07-015 - Approved (pdf)
• 2021-03-18 Advice Letter 351-W (Res. M-4849 Compliance Filing) - Approved (pdf)

2020

• 2020-12-22 Advice Letter 350-W 2021 Interim Rates (pdf)

Withdrawn/Rejected

• 2025-01-14 Advice Letter 405-W Withdrawn (pdf)
• 2022-12-05 CPUC Water Division Disposition of Suburban Water Systems- Advice Letter 377-W and 377-A (pdf)
• 2022-07-12 Advice Letter 370-W Modify Rule No. 9 (Rejected) (pdf)