2022 Cycle

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 info@title24stakeholders.com.

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	Draft CASE Report Available June 2020 Final CASE Report Available September 2020
Nonresidential Reduced Infiltration	Whole Building Air Leakage Testing Vestibule Requirement	Draft CASE Report Available May 2020 Final CASE Report Available
Nonresidential Indoor Lighting	Update Lighting Power Densities Multi-Zone Occupancy Sensing in Large Offices	Draft CASE Report Available June 2020 Final CASE Report Available September 2020
Nonresidential Outdoor Lighting Sources	Nonresidential Lighting Zone Reclassification Nonresidential Lighting Power Allowances for Parking Lots Multifamily Outdoor Lighting Power Allowances	Draft CASE Report Now Available (Comments accepted until June 26, 2020) Final CASE Report Available August 2020
Nonresidential Daylighting	Nonresidential Daylight Dimming to 10 Percent	Draft CASE Report Available May 2020 Final CASE Report Available September 2020
Nonresidential HVAC Controls	Expand Economizer Requirements VAV Deadband Airflow Dedicated Outside Air Systems (DOAS) Exhaust Air Heat Recovery	Draft CASE Report Available June 2020 Final CASE Report Available September 2020
Nonresidential Air Distribution	Fan Power Budget Fan Energy Index Duct Leakage Testing	Draft CASE Report Available June 2020 Final CASE Report Available September 2020
Nonresidential Computer Room Efficiency	Uninterruptible Power Supply (UPS) Efficiency Increased Temperature Threshold for Economizers Computer Room Heat Recovery Power Usage Effectiveness (PUE) Monitoring	Draft CASE Report Available June 2020 Final CASE Report Available September 2020
Nonresidential High Efficiency Boilers and Service Water Heating	Gas Boiler Systems Gas Service Water Heating Systems Oxygen Concentration –Process Boilers Oxygen Concentration –Commercial Boilers	Draft CASE Report Now Available (Comments accepted until June 12, 2020) Final CASE Report Available August 2020
Nonresidential Grid Integration	Demand Responsive lighting systems Thermal energy storage systems Heat pump water heaters	Draft CASE Report Now Available (Comments accepted until June 19, 2020) Final CASE Report Available August 2020
Nonresidential Steam Trap Monitoring	Steam Trap Monitoring	Draft CASE Report Available May 2020 Final CASE Report Available August 2020
Nonresidential Pipe Sizing and Leak Testing for Compressed Air Systems	Pipe Sizing Leak Testing, Remediation, and Metering Language Clean-up	Draft CASE Report Available June 2020 Final CASE Report Available September 2020
Nonresidential Controlled Environment Horticulture	Lighting Efficacy Efficient Dehumidification and Reuse of Transpired Wate Greenhouse Envelope	Draft CASE Report Available June 2020 Final CASE Report Available September 2020
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	Draft CASE Report Available May 2020 Final CASE Report Available September 2020
Nonresidential Drainwater Heat Recovery (Moved to Future Code Cycles)	Drainwater Heat Recovery	Draft CASE Report Now Available (Comments accepted until June 19, 2020)
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	Draft CASE Report Now Available (Comments accepted until June 26, 2020) Final CASE Report Available August 2020
Multifamily All Electric Package	Electric HVAC Systems Central Heat Pump Water Heater (HPWH) Systems Electric Appliances and Miscellaneous Load	Draft CASE Report Available (Comments accepted until June 26, 2020) Final CASE Report Available August 2020
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	Draft CASE Report Now Available (Comments accepted until June 19, 2020) Final CASE Report Available August 2020
Multifamily Indoor Air Quality	Reduce Infiltration Reduce Leakage from Central Ventilation Shafts Balanced Ventilation and ERC/HRV Prescriptive Requirements Kitchen Exhaust Hood Capture Efficiency	Draft CASE Report Now Available (Comments accepted until June 12, 2020) Final CASE Report Available August 2020

Single Family CASE Reports

Measure	Subeasures 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	Draft CASE Report Now Available (Comments accepted until June 12, 2020) Final CASE Report Available August 2020
Single Family Grid Integration	Load Shifting Heat Pump Water Heater Pre-Cooling and Thermostats Home Energy Management	Draft CASE Report Now Available (Comments accepted until June 19, 2020) Final CASE Report Available August 2020
Single Family Enhanced Air-to-Water Heat Pump Compliance Options	Air-to-Water Pump and Three Function Heat Pumps Hydronic Radiant Delivery	Draft CASE Report Now Available (Comments accepted until June 12, 2020) Final CASE Report Available August 2020
Single Family Variable Capacity HVAC Compliance Software Revisions	Compliance Requirements for Variable Capacity HVAC	Draft CASE Report Now Available (Comments accepted until June 19, 2020) Final CASE Report Available August 2020
Single Family Fault Detection Diagnostics (Moved to Future Code Cycles)	Residential HVAC Fault Detection Diagnostics	Research Report Available May 2020
Single Family Passive House Prescriptive Pathway (Moved to Future Code Cycles)	Passive House Prescriptive Pathway	No CASE Report for the 2022 Cycle

Nonresidential CASE Reports

Multifamily CASE Reports

Single Family CASE Reports

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