{
  "name": "DOE efficiency regions by US jurisdiction",
  "description": "All 52 US jurisdictions assigned to DOE efficiency standard regions, with the applicable SEER2 minimum for a split air conditioner under 45,000 Btu/h and the basis on which the standard is enforced.",
  "verified_on": "2026-08-17",
  "methodology": "DOE region assignment transcribed from the October 5 2022 DOE guidance. North = 5,000+ heating degree days; Southwest = hot-dry (AZ, CA, NV, NM); Southeast = hot-humid, listed explicitly by DOE.",
  "source": "https://www1.eere.energy.gov/buildings/appliance_standards/pdfs/2023_CAC_Standards_FAQ_10-5-2022_Final.pdf",
  "license": "https://hvacbuddy.shop/terms-of-service/",
  "enforcement_basis": {
    "north": "date of manufacture",
    "southeast": "date of installation (split-system air conditioners)",
    "southwest": "date of installation (split-system air conditioners)"
  },
  "minimums_seer2_split_ac_under_45k": {
    "north": 13.4,
    "southeast": 14.3,
    "southwest": 14.3
  },
  "jurisdictions": [
    {
      "code": "AL",
      "name": "Alabama",
      "doe_region": "southeast",
      "seer2_minimum_split_ac_under_45k": 14.3,
      "enforced_by": "installation"
    },
    {
      "code": "AK",
      "name": "Alaska",
      "doe_region": "north",
      "seer2_minimum_split_ac_under_45k": 13.4,
      "enforced_by": "manufacture"
    },
    {
      "code": "AZ",
      "name": "Arizona",
      "doe_region": "southwest",
      "seer2_minimum_split_ac_under_45k": 14.3,
      "enforced_by": "installation"
    },
    {
      "code": "AR",
      "name": "Arkansas",
      "doe_region": "southeast",
      "seer2_minimum_split_ac_under_45k": 14.3,
      "enforced_by": "installation"
    },
    {
      "code": "CA",
      "name": "California",
      "doe_region": "southwest",
      "seer2_minimum_split_ac_under_45k": 14.3,
      "enforced_by": "installation"
    },
    {
      "code": "CO",
      "name": "Colorado",
      "doe_region": "north",
      "seer2_minimum_split_ac_under_45k": 13.4,
      "enforced_by": "manufacture"
    },
    {
      "code": "CT",
      "name": "Connecticut",
      "doe_region": "north",
      "seer2_minimum_split_ac_under_45k": 13.4,
      "enforced_by": "manufacture"
    },
    {
      "code": "DE",
      "name": "Delaware",
      "doe_region": "southeast",
      "seer2_minimum_split_ac_under_45k": 14.3,
      "enforced_by": "installation"
    },
    {
      "code": "DC",
      "name": "District of Columbia",
      "doe_region": "southeast",
      "seer2_minimum_split_ac_under_45k": 14.3,
      "enforced_by": "installation"
    },
    {
      "code": "FL",
      "name": "Florida",
      "doe_region": "southeast",
      "seer2_minimum_split_ac_under_45k": 14.3,
      "enforced_by": "installation"
    },
    {
      "code": "GA",
      "name": "Georgia",
      "doe_region": "southeast",
      "seer2_minimum_split_ac_under_45k": 14.3,
      "enforced_by": "installation"
    },
    {
      "code": "HI",
      "name": "Hawaii",
      "doe_region": "southeast",
      "seer2_minimum_split_ac_under_45k": 14.3,
      "enforced_by": "installation"
    },
    {
      "code": "ID",
      "name": "Idaho",
      "doe_region": "north",
      "seer2_minimum_split_ac_under_45k": 13.4,
      "enforced_by": "manufacture"
    },
    {
      "code": "IL",
      "name": "Illinois",
      "doe_region": "north",
      "seer2_minimum_split_ac_under_45k": 13.4,
      "enforced_by": "manufacture"
    },
    {
      "code": "IN",
      "name": "Indiana",
      "doe_region": "north",
      "seer2_minimum_split_ac_under_45k": 13.4,
      "enforced_by": "manufacture"
    },
    {
      "code": "IA",
      "name": "Iowa",
      "doe_region": "north",
      "seer2_minimum_split_ac_under_45k": 13.4,
      "enforced_by": "manufacture"
    },
    {
      "code": "KS",
      "name": "Kansas",
      "doe_region": "north",
      "seer2_minimum_split_ac_under_45k": 13.4,
      "enforced_by": "manufacture"
    },
    {
      "code": "KY",
      "name": "Kentucky",
      "doe_region": "southeast",
      "seer2_minimum_split_ac_under_45k": 14.3,
      "enforced_by": "installation"
    },
    {
      "code": "LA",
      "name": "Louisiana",
      "doe_region": "southeast",
      "seer2_minimum_split_ac_under_45k": 14.3,
      "enforced_by": "installation"
    },
    {
      "code": "ME",
      "name": "Maine",
      "doe_region": "north",
      "seer2_minimum_split_ac_under_45k": 13.4,
      "enforced_by": "manufacture"
    },
    {
      "code": "MD",
      "name": "Maryland",
      "doe_region": "southeast",
      "seer2_minimum_split_ac_under_45k": 14.3,
      "enforced_by": "installation"
    },
    {
      "code": "MA",
      "name": "Massachusetts",
      "doe_region": "north",
      "seer2_minimum_split_ac_under_45k": 13.4,
      "enforced_by": "manufacture"
    },
    {
      "code": "MI",
      "name": "Michigan",
      "doe_region": "north",
      "seer2_minimum_split_ac_under_45k": 13.4,
      "enforced_by": "manufacture"
    },
    {
      "code": "MN",
      "name": "Minnesota",
      "doe_region": "north",
      "seer2_minimum_split_ac_under_45k": 13.4,
      "enforced_by": "manufacture"
    },
    {
      "code": "MS",
      "name": "Mississippi",
      "doe_region": "southeast",
      "seer2_minimum_split_ac_under_45k": 14.3,
      "enforced_by": "installation"
    },
    {
      "code": "MO",
      "name": "Missouri",
      "doe_region": "north",
      "seer2_minimum_split_ac_under_45k": 13.4,
      "enforced_by": "manufacture"
    },
    {
      "code": "MT",
      "name": "Montana",
      "doe_region": "north",
      "seer2_minimum_split_ac_under_45k": 13.4,
      "enforced_by": "manufacture"
    },
    {
      "code": "NE",
      "name": "Nebraska",
      "doe_region": "north",
      "seer2_minimum_split_ac_under_45k": 13.4,
      "enforced_by": "manufacture"
    },
    {
      "code": "NV",
      "name": "Nevada",
      "doe_region": "southwest",
      "seer2_minimum_split_ac_under_45k": 14.3,
      "enforced_by": "installation"
    },
    {
      "code": "NH",
      "name": "New Hampshire",
      "doe_region": "north",
      "seer2_minimum_split_ac_under_45k": 13.4,
      "enforced_by": "manufacture"
    },
    {
      "code": "NJ",
      "name": "New Jersey",
      "doe_region": "north",
      "seer2_minimum_split_ac_under_45k": 13.4,
      "enforced_by": "manufacture"
    },
    {
      "code": "NM",
      "name": "New Mexico",
      "doe_region": "southwest",
      "seer2_minimum_split_ac_under_45k": 14.3,
      "enforced_by": "installation"
    },
    {
      "code": "NY",
      "name": "New York",
      "doe_region": "north",
      "seer2_minimum_split_ac_under_45k": 13.4,
      "enforced_by": "manufacture"
    },
    {
      "code": "NC",
      "name": "North Carolina",
      "doe_region": "southeast",
      "seer2_minimum_split_ac_under_45k": 14.3,
      "enforced_by": "installation"
    },
    {
      "code": "ND",
      "name": "North Dakota",
      "doe_region": "north",
      "seer2_minimum_split_ac_under_45k": 13.4,
      "enforced_by": "manufacture"
    },
    {
      "code": "OH",
      "name": "Ohio",
      "doe_region": "north",
      "seer2_minimum_split_ac_under_45k": 13.4,
      "enforced_by": "manufacture"
    },
    {
      "code": "OK",
      "name": "Oklahoma",
      "doe_region": "southeast",
      "seer2_minimum_split_ac_under_45k": 14.3,
      "enforced_by": "installation"
    },
    {
      "code": "OR",
      "name": "Oregon",
      "doe_region": "north",
      "seer2_minimum_split_ac_under_45k": 13.4,
      "enforced_by": "manufacture"
    },
    {
      "code": "PA",
      "name": "Pennsylvania",
      "doe_region": "north",
      "seer2_minimum_split_ac_under_45k": 13.4,
      "enforced_by": "manufacture"
    },
    {
      "code": "PR",
      "name": "Puerto Rico",
      "doe_region": "southeast",
      "seer2_minimum_split_ac_under_45k": 14.3,
      "enforced_by": "installation"
    },
    {
      "code": "RI",
      "name": "Rhode Island",
      "doe_region": "north",
      "seer2_minimum_split_ac_under_45k": 13.4,
      "enforced_by": "manufacture"
    },
    {
      "code": "SC",
      "name": "South Carolina",
      "doe_region": "southeast",
      "seer2_minimum_split_ac_under_45k": 14.3,
      "enforced_by": "installation"
    },
    {
      "code": "SD",
      "name": "South Dakota",
      "doe_region": "north",
      "seer2_minimum_split_ac_under_45k": 13.4,
      "enforced_by": "manufacture"
    },
    {
      "code": "TN",
      "name": "Tennessee",
      "doe_region": "southeast",
      "seer2_minimum_split_ac_under_45k": 14.3,
      "enforced_by": "installation"
    },
    {
      "code": "TX",
      "name": "Texas",
      "doe_region": "southeast",
      "seer2_minimum_split_ac_under_45k": 14.3,
      "enforced_by": "installation"
    },
    {
      "code": "UT",
      "name": "Utah",
      "doe_region": "north",
      "seer2_minimum_split_ac_under_45k": 13.4,
      "enforced_by": "manufacture"
    },
    {
      "code": "VT",
      "name": "Vermont",
      "doe_region": "north",
      "seer2_minimum_split_ac_under_45k": 13.4,
      "enforced_by": "manufacture"
    },
    {
      "code": "VA",
      "name": "Virginia",
      "doe_region": "southeast",
      "seer2_minimum_split_ac_under_45k": 14.3,
      "enforced_by": "installation"
    },
    {
      "code": "WA",
      "name": "Washington",
      "doe_region": "north",
      "seer2_minimum_split_ac_under_45k": 13.4,
      "enforced_by": "manufacture"
    },
    {
      "code": "WV",
      "name": "West Virginia",
      "doe_region": "north",
      "seer2_minimum_split_ac_under_45k": 13.4,
      "enforced_by": "manufacture"
    },
    {
      "code": "WI",
      "name": "Wisconsin",
      "doe_region": "north",
      "seer2_minimum_split_ac_under_45k": 13.4,
      "enforced_by": "manufacture"
    },
    {
      "code": "WY",
      "name": "Wyoming",
      "doe_region": "north",
      "seer2_minimum_split_ac_under_45k": 13.4,
      "enforced_by": "manufacture"
    }
  ]
}