SB 1221 Gas Distribution Cost Data & Maps
This page contains: Gas Distribution Cost Data, CPUC Cost Data Direction to Utilities, Gas Utility Map Webpage Links, & Additional Information
Gas Distribution Cost Data
Gas Distribution Infrastructure Replacement Backgrounder
This backgrounder provides high-level information about gas distribution infrastructure replacement and its costs.
Cost data provided by utilities:
This data is posted as provided by utilities to the R.24-09-012 service list on November 5, 2025.
Pacific Gas & Electric
- Distribution Replacement Costs Data (xlsx)
- Regstation Replacement Costs Data (xlsx)
- Maintenance Costs (xlsx)
- Cover Description (pdf) (availability pdf)
Southern California Gas Company
- Distribution Replacement Costs Data (xlsx)
- Regstation Replacement Costs Data (xlsx)
- Maintenance Costs (xlsx)
- Cover Description (pdf) (availability pdf)
San Diego Gas & Electric
- Distribution Replacement Costs Data (xlsx)
- Regstation Replacement Costs Data (xlsx)
- Maintenance Costs (xlsx)
- Cover Description (pdf) (availability pdf)
Southwest Gas
- Distribution Replacement Costs Data, redacted (xlsx)
- Maintenance Costs (xlsx)
- Confidentiality Motion (pdf)
CPUC cost data direction to utilities:
- September 23, 2025 Templates (corrected October 14, 2025)
- Distribution Replacement Costs Data - Template.xlsx
- Regstation Replacement Costs Data - Template.xlsx
- Maintenance Costs - Template.xlsx
- See Cost Data ruling
Gas Utility Map Webpage Links
CPUC mapping directions to utilities
- April 18, 2024: Ruling with attached direction to utilities
Confidentiality
- July 1, 2025: Pending confidentiality motion filed by PG&E, SoCalGas, SDG&E, and Southwest Gas (pdf)
- August 25, 2025: Ruling for more information on motion and attached approved NDA
Pacific Gas & Electric
- Utility-provided map
- Compliance filing and user guide (pdf)
- Data facilitator: SB1221Requests@pge.com
Southern California Gas Company
- Utility-provided map
- Compliance filing and user guide (pdf)
- Data facilitator: SB1221Maps@semprautilities.com
San Diego Gas & Electric
- Utility-provided map
- Compliance filing and user guide (pdf)
- Data facilitator: SB1221Maps@semprautilities.com
Southwest Gas
- Utility-provided map
- Compliance filing and user guide (pdf)
- Data facilitator: 702-364-3082, GISadmin@swgas.com
Small Utilities
- West Coast Gas
- Southern California Edison Catalina Island propane service
- Alpine Natural Gas
Additional Information
The CPUC’s direction to utilities regarding SB 1221 implementation so far has been conducted within the Long-Term Gas Planning Proceeding, R.24-09-012. Further information about the Long-Term Gas Planning Proceeding, including SB 1221-related proposals and other proceeding developments, are available here.
As the CPUC proceeds in implementing SB 1221, additional information will be added to this webpage.