id,name,formula,input_rows,result,unit,limitations
d1,Households in the North region,sum B25003_E001 over 30 North states,"rows 57 to 107 (state rows), registry.csv",62952423,households,ACS 2025 1-year estimates carry sampling error; occupied housing units equal households
d2,Households in the Southeast region (16 states plus DC),sum B25003_E001 over Southeast jurisdictions,"rows 57 to 107, row 14",52062729,households,ACS 2025 1-year estimates carry sampling error; occupied housing units equal households; excludes Puerto Rico and territories
d3,Households in the Southwest region,"sum B25003_E001 over AZ, CA, NV, NM","rows 57 to 107, row 15",19048270,households,ACS 2025 1-year estimates carry sampling error; occupied housing units equal households
d4,North share of US households,d1 / row 108 x 100,"d1, row 108",47.0,percent,ACS 2025 1-year estimates carry sampling error; occupied housing units equal households
d5,Southeast share of US households,d2 / row 108 x 100,"d2, row 108",38.8,percent,ACS 2025 1-year estimates carry sampling error; occupied housing units equal households
d6,Southwest share of US households,d3 / row 108 x 100,"d3, row 108",14.2,percent,ACS 2025 1-year estimates carry sampling error; occupied housing units equal households
d7,Households in the 21 jurisdictions with a regional split AC standard,d2 + d3,"d2, d3",71110999,households,ACS 2025 1-year estimates carry sampling error; occupied housing units equal households
d8,Share of US households under a regional (installation-based) split AC standard,d7 / row 108 x 100,"d7, row 108",53.0,percent,"ACS 2025 1-year estimates carry sampling error; occupied housing units equal households; region assignment is by state, not by climate within a state"
d9,Owner-occupied households under a regional split AC standard,sum B25003_E002 over Southeast and Southwest,"registry.csv owner column, row 109",45810864,households,ACS 2025 1-year estimates carry sampling error; occupied housing units equal households
d10,Share of US owner-occupied households under a regional split AC standard,d9 / row 109 x 100,"d9, row 109",52.3,percent,ACS 2025 1-year estimates carry sampling error; occupied housing units equal households
d11,"Household-weighted minimum SEER2 for a split AC under 45,000 Btu/h",(d1 x 13.4 + d7 x 14.3) / row 108,"d1, d7, rows 1, 9, 111",13.88,SEER2,"A weighting of legal floors, not of equipment actually installed"
d12,Jurisdiction counts by region,count of registry rows by region,"registry.csv, rows 14, 15",North 30; Southeast 17; Southwest 4,jurisdictions,50 states plus DC; territories not counted
d13,"Gap between split heat pump and split AC SEER2 floors, North",14.3 - 13.4,"rows 1, 2",0.9,SEER2 points,Cooling floor only; heat pumps also carry an HSPF2 floor
d14,"Gap between split heat pump and split AC SEER2 floors, South, under 45,000 Btu/h",14.3 - 14.3,"rows 2, 9",0.0,SEER2 points,Southwest units also face EER2 floors that heat pumps do not
d15,"Gap between split heat pump and split AC SEER2 floors, South, 45,000 Btu/h and up",14.3 - 13.8,"rows 2, 10",0.5,SEER2 points,As d13
d16,Jurisdictions where split AC and split heat pump floors differ for at least one capacity,count of registry rows where any split AC SEER2 floor differs from 14.3,registry.csv,51,jurisdictions,Counts SEER2 only
d17,"Implied ratio of DOE-translated level to old-test level: Split AC, national (both sizes)",13.4 SEER2 / 14 SEER,"rows 1 to 13, row 18",0.957,ratio,Holds only for these DOE-translated standard levels; not a conversion factor for individual products
d18,"Implied ratio of DOE-translated level to old-test level: Split AC under 45,000 Btu/h, Southeast and Southwest",14.3 SEER2 / 15 SEER,"rows 1 to 13, row 18",0.953,ratio,Holds only for these DOE-translated standard levels; not a conversion factor for individual products
d19,"Implied ratio of DOE-translated level to old-test level: Split AC 45,000 Btu/h and up, Southeast and Southwest",13.8 SEER2 / 14.5 SEER,"rows 1 to 13, row 18",0.952,ratio,Holds only for these DOE-translated standard levels; not a conversion factor for individual products
d20,"Implied ratio of DOE-translated level to old-test level: Split heat pump, cooling",14.3 SEER2 / 15 SEER,"rows 1 to 13, row 18",0.953,ratio,Holds only for these DOE-translated standard levels; not a conversion factor for individual products
d21,"Implied ratio of DOE-translated level to old-test level: Split heat pump, heating",7.5 HSPF2 / 8.8 HSPF,"rows 1 to 13, row 18",0.852,ratio,Holds only for these DOE-translated standard levels; not a conversion factor for individual products
d22,"Implied ratio of DOE-translated level to old-test level: Packaged AC and packaged heat pump, cooling",13.4 SEER2 / 14 SEER,"rows 1 to 13, row 18",0.957,ratio,Holds only for these DOE-translated standard levels; not a conversion factor for individual products
d23,"Implied ratio of DOE-translated level to old-test level: Packaged heat pump, heating",6.7 HSPF2 / 8.0 HSPF,"rows 1 to 13, row 18",0.838,ratio,Holds only for these DOE-translated standard levels; not a conversion factor for individual products
d24,"Implied ratio of DOE-translated level to old-test level: Split AC under 45,000 Btu/h, Southwest",11.7 EER2 / 12.2 EER,"rows 1 to 13, row 18",0.959,ratio,Holds only for these DOE-translated standard levels; not a conversion factor for individual products
d25,"Implied ratio of DOE-translated level to old-test level: Split AC 45,000 Btu/h and up, Southwest",11.2 EER2 / 11.7 EER,"rows 1 to 13, row 18",0.957,ratio,Holds only for these DOE-translated standard levels; not a conversion factor for individual products
d26,"Implied ratio of DOE-translated level to old-test level: Split AC, Southwest, high-SEER units",9.8 EER2 / 10.2 EER,"rows 1 to 13, row 18",0.961,ratio,Holds only for these DOE-translated standard levels; not a conversion factor for individual products
d27,"Implied ratio of DOE-translated level to old-test level: Packaged AC, Southwest",10.6 EER2 / 11.0 EER,"rows 1 to 13, row 18",0.964,ratio,Holds only for these DOE-translated standard levels; not a conversion factor for individual products
d28,"Change in old-test floor, 2015 standard to 2023 standard: Split AC, North",(14 - 13) / 13 x 100,"rows 16, 18",7.7,percent,Both levels on the pre-2023 test basis as stated by DOE; actual products may differ
d29,"Change in old-test floor, 2015 standard to 2023 standard: Split AC under 45k, South",(15 - 14) / 14 x 100,"rows 16, 18",7.1,percent,Both levels on the pre-2023 test basis as stated by DOE; actual products may differ
d30,"Change in old-test floor, 2015 standard to 2023 standard: Split AC 45k and up, South",(14.5 - 14) / 14 x 100,"rows 16, 18",3.6,percent,Both levels on the pre-2023 test basis as stated by DOE; actual products may differ
d31,"Change in old-test floor, 2015 standard to 2023 standard: Split heat pump (SEER)",(15 - 14) / 14 x 100,"rows 16, 18",7.1,percent,Both levels on the pre-2023 test basis as stated by DOE; actual products may differ
d32,"Change in old-test floor, 2015 standard to 2023 standard: Split heat pump (HSPF)",(8.8 - 8.2) / 8.2 x 100,"rows 16, 18",7.3,percent,Both levels on the pre-2023 test basis as stated by DOE; actual products may differ
d33,"Change in old-test floor, 2015 standard to 2023 standard: Packaged AC",(14 - 14) / 14 x 100,"rows 16, 18",0.0,percent,Both levels on the pre-2023 test basis as stated by DOE; actual products may differ
d34,"Change in old-test floor, 2015 standard to 2023 standard: Packaged heat pump (SEER)",(14 - 14) / 14 x 100,"rows 16, 18",0.0,percent,Both levels on the pre-2023 test basis as stated by DOE; actual products may differ