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2022 Cycle CASE Reports

The Statewide CASE Team has selected measures for inclusion in Nonresidential, Multifamily, and Single Family CASE Reports in the 2022 code cycle. These 2022 standards will continue to improve upon the 2019 standards for new construction of, and additions and alterations to, residential and nonresidential buildings.

We encourage stakeholders to email us feedback throughout the process. You can also participate in the 2022 Title 24, Part 6 Standards update by attending the Energy Commission workshops and submitting written comments to the rulemaking docket. To submit a comment to the Energy Commission, refer to the Pre-Rulemaking and Rulemaking Workshop Notices, or click here.

Please send any comments regarding CASE Reports to

Nonresidential CASE ReportsMultifamily CASE ReportsSingle Family CASE Reports

Nonresidential CASE Reports

Measure Submeasures Included CASE Report Status
Nonresidential High Performance Envelope
  • High Performance Windows
  • Opaque Envelope Performance
  • Roof Alterations
  • Cool Roofs
Nonresidential Reduced Infiltration
  • Whole Building Air Leakage Testing
  • Vestibule Requirement
Nonresidential Indoor Lighting
  • Update Lighting Power Densities
  • Multi-Zone Occupancy Sensing in Large Offices
Nonresidential Outdoor Lighting Sources
  • Nonresidential Lighting Zone Reclassification
  • Nonresidential Lighting Power Allowances for Parking Lots
  • Multifamily Outdoor Lighting Power Allowances
Nonresidential Daylighting
  • Nonresidential Daylight Dimming to 10 Percent
Nonresidential HVAC Controls
  • Expand Economizer Requirements
  • VAV Deadband Airflow
  • Dedicated Outside Air Systems (DOAS)
  • Exhaust Air Heat Recovery
Nonresidential Air Distribution
  • Fan Power Budget
  • Fan Energy Index
  • Duct Leakage Testing
Nonresidential Computer Room Efficiency
  • Uninterruptible Power Supply (UPS) Efficiency
  • Increased Temperature Threshold for Economizers
  • Computer Room Heat Recovery
  • Power Usage Effectiveness (PUE) Monitoring
Nonresidential High Efficiency Boilers and Service Water Heating
  • Gas Boiler Systems
  • Gas Service Water Heating Systems
  • Oxygen Concentration –Process Boilers
  • Oxygen Concentration –Commercial Boilers
Nonresidential Grid Integration
  • Demand Responsive lighting systems
  • Thermal energy storage systems
  • Heat pump water heaters
Nonresidential Steam Trap Monitoring
  • Steam Trap Monitoring
Nonresidential Pipe Sizing and Leak Testing for Compressed Air Systems
  • Pipe Sizing
  • Leak Testing, Remediation, and Metering
  • Language Clean-up
Nonresidential Controlled Environment Horticulture
  • Lighting Efficacy
  • Efficient Dehumidification and Reuse of Transpired Wate
  • Greenhouse Envelope
Nonresidential Refrigeration System Opportunities
  • Establish Design and Control Requirements for Transcritical CO2 Systems
  • Establish Design and Control Requirements for Large Packaged Systems
  • Evaporator Minimum Specific Efficiency for Refrigerated Warehouses
  • Require Automatic Door Closers
  • Acceptance Testing for Commercial Refrigeration
Nonresidential Drainwater Heat Recovery 
  • Drainwater Heat Recovery
Nonresidential Plug Load Modeling (Moved to Future Code Cycles)
  • Miscellaneous End Loads
  • No CASE Report for the 2022 Cycle

Multifamily CASE Reports

Measure Submeasures Included CASE Report Status
Multifamily Chapter Restructuring
  • Multifamily Chapter Restructuring
  • Draft CASE Report Available September 2020
  • Final CASE Report Availability December 2020
Multifamily Domestic Hot Water
  • Hot Water Distribution
  • Solar Thermal Water Heating
  • Multifamily Drainwater Heat Recovery
  • Central Heat Pump Water Heating
Multifamily All Electric Package
  • Electric HVAC Systems
  • Central Heat Pump Water Heater (HPWH) Systems
  • Electric Appliances and Miscellaneous Load
Multifamily High Performance Envelope
  • Improved Fenestration U-factor and Solar Heat Gain Coefficient
  • Window Area Limits and Metrics
  • Quality Insulation Installation
  • Reduced Thermal Bridging
  • Improved Wall Assemblies
Multifamily Indoor Air Quality
  • Reduce Infiltration
  • Reduce Leakage from Central Ventilation Shafts
  • Balanced Ventilation and ERC/HRV Prescriptive Requirements
  • Kitchen Exhaust Hood Capture Efficiency

Single Family CASE Reports

Measure Submeasures Included CASE Report Status
Single Family Energy Savings and Process Improvements for Additions and Alterations
  • Roof Replacements, Cool Roofs, and Insulation
  • Electric Equipment Replacements
  • Duct Measures
  • Attic Insulation
  • ACM Reference Manual Compliance Options
Single Family Grid Integration
  • Load Shifting Heat Pump Water Heater
  • Pre-Cooling and Thermostats
  • Home Energy Management
Single Family Enhanced Air-to-Water Heat Pump Compliance Options
  • Air-to-Water Pump and Three Function Heat Pumps
  • Hydronic Radiant Delivery
Single Family Variable Capacity HVAC Compliance Software Revisions
  • Compliance Requirements for Variable Capacity HVAC
Single Family Fault Detection Diagnostics (Moved to Future Code Cycles)
  • Residential HVAC Fault Detection Diagnostics
Single Family Passive House Prescriptive Pathway (Moved to Future Code Cycles)
  • Passive House Prescriptive Pathway
  • No CASE Report for the 2022 Cycle

Get Email Updates

The Statewide CASE Team periodically distributes email notifications that advertise upcoming meetings, provide materials from past meetings, and update stakeholders on the progression of the Energy Commission’s rulemaking process. You can choose to receive measure-specific and/or general updates on these topics depending on your needs.

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