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  • CHAPTER3 [CE]
    GENERAL REQUIREMENTS

    SECTIONC301
    CLIMATE ZONES

    C301.1General.

    Climate zones from Figure C301.1 or Table C301.1 shall be used in determining the applicable requirements from Chapter 4. Locations not in Table C301.1 (outside the United States) shall be assigned a climate zone based on Section C301.3.

    FIGURE C301.1

    CLIMATE ZONES

    TABLE C301.1

    CLIMATE ZONES, MOISTURE REGIMES, AND WARM-HUMID DESIGNATIONS BY STATE, COUNTY AND TERRITORY

    Key: A – Moist, B – Dry, C – Marine. Absence of moisture designation indicates moisture regime is irrelevant. Asterisk (*) indicates a warm-humid location.
    US STATES
    ALABAMA
    3A Autauga*
    2A Baldwin*
    3A Barbour*
    3A Bibb
    3A Blount
    3A Bullock*
    3A Butler*
    3A Calhoun
    3A Chambers
    3A Cherokee
    3A Chilton
    3A Choctaw*
    3A Clarke*
    3A Clay
    3A Cleburne
    3A Coffee*
    3A Colbert
    3A Conecuh*
    3A Coosa
    3A Covington*
    3A Crenshaw*
    3A Cullman
    3A Dale*
    3A Dallas*
    3A DeKalb
    3A Elmore*
    3A Escambia*
    3A Etowah
    3A Fayette
    3A Franklin
    3A Geneva*
    3A Greene
    3A Hale
    3A Henry*
    3A Houston*
    3A Jackson
    3A Jefferson
    3A Lamar
    3A Lauderdale
    3A Lawrence
    3A Lee
    3A Limestone
    3A Lowndes*
    3A Macon*
    3A Madison
    3A Marengo*
    3A Marion
    3A Marshall
    2A Mobile*
    3A Monroe*
    3A Montgomery*
    3A Morgan
    3A Perry*
    3A Pickens
    3A Pike*
    3A Randolph
    3A Russell*
    3A Shelby
    3A St. Clair
    3A Sumter
    3A Talladega
    3A Tallapoosa
    3A Tuscaloosa
    3A Walker
    3A Washington*
    3A Wilcox*
    3A Winston
    ALASKA
    7 Aleutians East
    7 Aleutians West
    7 Anchorage
    8 Bethel
    7 Bristol Bay
    7 Denali
    8 Dillingham
    8 Fairbanks North Star
    7 Haines
    7 Juneau
    7 Kenai Peninsula
    7 Ketchikan Gateway
    7 Kodiak Island
    7 Lake and Peninsula
    7 Matanuska-Susitna
    8 Nome
    8 North Slope
    8 Northwest Arctic
    7 Prince of Wales-Outer Ketchikan
    7 Sitka
    7 Skagway-Hoonah-Angoon
    8 Southeast Fairbanks
    7 Valdez-Cordova
    8 Wade Hampton
    7 Wrangell-Petersburg
    7 Yakutat
    8 Yukon-Koyukuk
    ARIZONA
    5B Apache
    3B Cochise
    5B Coconino
    4B Gila
    3B Graham
    3B Greenlee
    2B La Paz
    2B Maricopa
    3B Mohave
    5B Navajo
    2B Pima
    2B Pinal
    3B Santa Cruz
    4B Yavapai
    2B Yuma
    ARKANSAS
    3A Arkansas
    3A Ashley
    4A Baxter
    4A Benton
    4A Boone
    3A Bradley
    3A Calhoun
    4A Carroll
    3A Chicot
    3A Clark
    3A Clay
    3A Cleburne
    3A Cleveland
    3A Columbia*
    3A Conway
    3A Craighead
    3A Crawford
    3A Crittenden
    3A Cross
    3A Dallas
    3A Desha
    3A Drew
    3A Faulkner
    3A Franklin
    4A Fulton
    3A Garland
    3A Grant
    3A Greene
    3A Hempstead*
    3A Hot Spring
    3A Howard
    3A Independence
    4A Izard
    3A Jackson
    3A Jefferson
    3A Johnson
    3A Lafayette*
    3A Lawrence
    3A Lee
    3A Lincoln
    3A Little River*
    3A Logan
    3A Lonoke
    4A Madison
    4A Marion
    3A Miller*
    3A Mississippi
    3A Monroe
    3A Montgomery
    3A Nevada
    4A Newton
    3A Ouachita
    3A Perry
    3A Phillips
    3A Pike
    3A Poinsett
    3A Polk
    3A Pope
    3A Prairie
    3A Pulaski
    3A Randolph
    3A Saline
    3A Scott
    4A Searcy
    3A Sebastian
    3A Sevier*
    3A Sharp
    3A St. Francis
    4A Stone
    3A Union*
    3A Van Buren
    4A Washington
    3A White
    3A Woodruff
    3A Yell
    CALIFORNIA
    3C Alameda
    6B Alpine
    4B Amador
    3B Butte
    4B Calaveras
    3B Colusa
    3B Contra Costa
    4C Del Norte
    4B El Dorado
    3B Fresno
    3B Glenn
    4C Humboldt
    2B Imperial
    4B Inyo
    3B Kern
    3B Kings
    4B Lake
    5B Lassen
    3B Los Angeles
    3B Madera
    3C Marin
    4B Mariposa
    3C Mendocino
    3B Merced
    5B Modoc
    6B Mono
    3C Monterey
    3C Napa
    5B Nevada
    3B Orange
    3B Placer
    5B Plumas
    3B Riverside
    3B Sacramento
    3C San Benito
    3B San Bernardino
    3B San Diego
    3C San Francisco
    3B San Joaquin
    3C San Luis Obispo
    3C San Mateo
    3C Santa Barbara
    3C Santa Clara
    3C Santa Cruz
    3B Shasta
    5B Sierra
    5B Siskiyou
    3B Solano
    3C Sonoma
    3B Stanislaus
    3B Sutter
    3B Tehama
    4B Trinity
    3B Tulare
    4B Tuolumne
    3C Ventura
    3B Yolo
    3B Yuba
    COLORADO
    5B Adams
    6B Alamosa
    5B Arapahoe
    6B Archuleta
    4B Baca
    5B Bent
    5B Boulder
    5B Broomfield
    6B Chaffee
    5B Cheyenne
    7 Clear Creek
    6B Conejos
    6B Costilla
    5B Crowley
    6B Custer
    5B Delta
    5B Denver
    6B Dolores
    5B Douglas
    6B Eagle
    5B Elbert
    5B El Paso
    5B Fremont
    5B Garfield
    5B Gilpin
    7 Grand
    7 Gunnison
    7 Hinsdale
    5B Huerfano
    7 Jackson
    5B Jefferson
    5B Kiowa
    5B Kit Carson
    7 Lake
    5B La Plata
    5B Larimer
    4B Las Animas
    5B Lincoln
    5B Logan
    5B Mesa
    7 Mineral
    6B Moffat
    5B Montezuma
    5B Montrose
    5B Morgan
    4B Otero
    6B Ouray
    7 Park
    5B Phillips
    7 Pitkin
    5B Prowers
    5B Pueblo
    6B Rio Blanco
    7 Rio Grande
    7 Routt
    6B Saguache
    7 San Juan
    6B San Miguel
    5B Sedgwick
    7 Summit
    5B Teller
    5B Washington
    5B Weld
    5B Yuma
    CONNECTICUT
    5A (all)
    DELAWARE
    4A (all)
    DISTRICT OF COLUMBIA
    4A (all)
    FLORIDA
    2A Alachua*
    2A Baker*
    2A Bay*
    2A Bradford*
    2A Brevard*
    1A Broward*
    2A Calhoun*
    2A Charlotte*
    2A Citrus*
    2A Clay*
    2A Collier*
    2A Columbia*
    2A DeSoto*
    2A Dixie*
    2A Duval*
    2A Escambia*
    2A Flagler*
    2A Franklin*
    2A Gadsden*
    2A Gilchrist*
    2A Glades*
    2A Gulf*
    2A Hamilton*
    2A Hardee*
    2A Hendry*
    2A Hernando*
    2A Highlands*
    2A Hillsborough*
    2A Holmes*
    2A Indian River*
    2A Jackson*
    2A Jefferson*
    2A Lafayette*
    2A Lake*
    2A Lee*
    2A Leon*
    2A Levy*
    2A Liberty*
    2A Madison*
    2A Manatee*
    2A Marion*
    2A Martin*
    1A Miami-Dade*
    1A Monroe*
    2A Nassau*
    2A Okaloosa*
    2A Okeechobee*
    2A Orange*
    2A Osceola*
    2A Palm Beach*
    2A Pasco*
    2A Pinellas*
    2A Polk*
    2A Putnam*
    2A Santa Rosa*
    2A Sarasota*
    2A Seminole*
    2A St. Johns*
    2A St. Lucie*
    2A Sumter*
    2A Suwannee*
    2A Taylor*
    2A Union*
    2A Volusia*
    2A Wakulla*
    2A Walton*
    2A Washington*
    GEORGIA
    2A Appling*
    2A Atkinson*
    2A Bacon*
    2A Baker*
    3A Baldwin
    4A Banks
    3A Barrow
    3A Bartow
    3A Ben Hill*
    2A Berrien*
    3A Bibb
    3A Bleckley*
    2A Brantley*
    2A Brooks*
    2A Bryan*
    3A Bulloch*
    3A Burke
    3A Butts
    3A Calhoun*
    2A Camden*
    3A Candler*
    3A Carroll
    4A Catoosa
    2A Charlton*
    2A Chatham*
    3A Chattahoochee*
    4A Chattooga
    3A Cherokee
    3A Clarke
    3A Clay*
    3A Clayton
    2A Clinch*
    3A Cobb
    3A Coffee*
    2A Colquitt*
    3A Columbia
    2A Cook*
    3A Coweta
    3A Crawford
    3A Crisp*
    4A Dade
    4A Dawson
    2A Decatur*
    3A DeKalb
    3A Dodge*
    3A Dooly*
    3A Dougherty*
    3A Douglas
    3A Early*
    2A Echols*
    2A Effingham*
    3A Elbert
    3A Emanuel*
    2A Evans*
    4A Fannin
    3A Fayette
    4A Floyd
    3A Forsyth
    4A Franklin
    3A Fulton
    4A Gilmer
    3A Glascock
    2A Glynn*
    4A Gordon
    2A Grady*
    3A Greene
    3A Gwinnett
    4A Habersham
    4A Hall
    3A Hancock
    3A Haralson
    3A Harris
    3A Hart
    3A Heard
    3A Henry
    3A Houston*
    3A Irwin*
    3A Jackson
    3A Jasper
    2A Jeff Davis*
    3A Jefferson
    3A Jenkins*
    3A Johnson*
    3A Jones
    3A Lamar
    2A Lanier*
    3A Laurens*
    3A Lee*
    2A Liberty*
    3A Lincoln
    2A Long*
    2A Lowndes*
    4A Lumpkin
    3A Macon*
    3A Madison
    3A Marion*
    3A McDuffie
    2A McIntosh*
    3A Meriwether
    2A Miller*
    2A Mitchell*
    3A Monroe
    3A Montgomery*
    3A Morgan
    4A Murray
    3A Muscogee
    3A Newton
    3A Oconee
    3A Oglethorpe
    3A Paulding
    3A Peach*
    4A Pickens
    2A Pierce*
    3A Pike
    3A Polk
    3A Pulaski*
    3A Putnam
    3A Quitman*
    4A Rabun
    3A Randolph*
    3A Richmond
    3A Rockdale
    3A Schley*
    3A Screven*
    2A Seminole*
    3A Spalding
    4A Stephens
    3A Stewart*
    3A Sumter*
    3A Talbot
    3A Taliaferro
    2A Tattnall*
    3A Taylor*
    3A Telfair*
    3A Terrell*
    2A Thomas*
    3A Tift*
    2A Toombs*
    4A Towns
    3A Treutlen*
    3A Troup
    3A Turner*
    3A Twiggs*
    4A Union
    3A Upson
    4A Walker
    3A Walton
    2A Ware*
    3A Warren
    3A Washington
    2A Wayne*
    3A Webster*
    3A Wheeler*
    4A White
    4A Whitfield
    3A Wilcox*
    3A Wilkes
    3A Wilkinson
    3A Worth*
    HAWAII
    1A (all)*
    IDAHO
    5B Ada
    6B Adams
    6B Bannock
    6B Bear Lake
    5B Benewah
    6B Bingham
    6B Blaine
    6B Boise
    6B Bonner
    6B Bonneville
    6B Boundary
    6B Butte
    6B Camas
    5B Canyon
    6B Caribou
    5B Cassia
    6B Clark
    5B Clearwater
    6B Custer
    5B Elmore
    6B Franklin
    6B Fremont
    5B Gem
    5B Gooding
    5B Idaho
    6B Jefferson
    5B Jerome
    5B Kootenai
    5B Latah
    6B Lemhi
    5B Lewis
    5B Lincoln
    6B Madison
    5B Minidoka
    5B Nez Perce
    6B Oneida
    5B Owyhee
    5B Payette
    5B Power
    5B Shoshone
    6B Teton
    5B Twin Falls
    6B Valley
    5B Washington
    ILLINOIS
    5A Adams
    4A Alexander
    4A Bond
    5A Boone
    5A Brown
    5A Bureau
    5A Calhoun
    5A Carroll
    5A Cass
    5A Champaign
    4A Christian
    5A Clark
    4A Clay
    4A Clinton
    5A Coles
    5A Cook
    4A Crawford
    5A Cumberland
    5A DeKalb
    5A De Witt
    5A Douglas
    5A DuPage
    5A Edgar
    4A Edwards
    4A Effingham
    4A Fayette
    5A Ford
    4A Franklin
    5A Fulton
    4A Gallatin
    5A Greene
    5A Grundy
    4A Hamilton
    5A Hancock
    4A Hardin
    5A Henderson
    5A Henry
    5A Iroquois
    4A Jackson
    4A Jasper
    4A Jefferson
    5A Jersey
    5A Jo Daviess
    4A Johnson
    5A Kane
    5A Kankakee
    5A Kendall
    5A Knox
    5A Lake
    5A La Salle
    4A Lawrence
    5A Lee
    5A Livingston
    5A Logan
    5A Macon
    4A Macoupin
    4A Madison
    4A Marion
    5A Marshall
    5A Mason
    4A Massac
    5A McDonough
    5A McHenry
    5A McLean
    5A Menard
    5A Mercer
    4A Monroe
    4A Montgomery
    5A Morgan
    5A Moultrie
    5A Ogle
    5A Peoria
    4A Perry
    5A Piatt
    5A Pike
    4A Pope
    4A Pulaski
    5A Putnam
    4A Randolph
    4A Richland
    5A Rock Island
    4A Saline
    5A Sangamon
    5A Schuyler
    5A Scott
    4A Shelby
    5A Stark
    4A St. Clair
    5A Stephenson
    5A Tazewell
    4A Union
    5A Vermilion
    4A Wabash
    5A Warren
    4A Washington
    4A Wayne
    4A White
    5A Whiteside
    5A Will
    4A Williamson
    5A Winnebago
    5A Woodford
    INDIANA
    5A Adams
    5A Allen
    5A Bartholomew
    5A Benton
    5A Blackford
    5A Boone
    4A Brown
    5A Carroll
    5A Cass
    4A Clark
    5A Clay
    5A Clinton
    4A Crawford
    4A Daviess
    4A Dearborn
    5A Decatur
    5A De Kalb
    5A Delaware
    4A Dubois
    5A Elkhart
    5A Fayette
    4A Floyd
    5A Fountain
    5A Franklin
    5A Fulton
    4A Gibson
    5A Grant
    4A Greene
    5A Hamilton
    5A Hancock
    4A Harrison
    5A Hendricks
    5A Henry
    5A Howard
    5A Huntington
    4A Jackson
    5A Jasper
    5A Jay
    4A Jefferson
    4A Jennings
    5A Johnson
    4A Knox
    5A Kosciusko
    5A LaGrange
    5A Lake
    5A LaPorte
    4A Lawrence
    5A Madison
    5A Marion
    5A Marshall
    4A Martin
    5A Miami
    4A Monroe
    5A Montgomery
    5A Morgan
    5A Newton
    5A Noble
    4A Ohio
    4A Orange
    5A Owen
    5A Parke
    4A Perry
    4A Pike
    5A Porter
    4A Posey
    5A Pulaski
    5A Putnam
    5A Randolph
    4A Ripley
    5A Rush
    4A Scott
    5A Shelby
    4A Spencer
    5A Starke
    5A Steuben
    5A St. Joseph
    4A Sullivan
    4A Switzerland
    5A Tippecanoe
    5A Tipton
    5A Union
    4A Vanderburgh
    5A Vermillion
    5A Vigo
    5A Wabash
    5A Warren
    4A Warrick
    4A Washington
    5A Wayne
    5A Wells
    5A White
    5A Whitley
    IOWA
    5A Adair
    5A Adams
    6A Allamakee
    5A Appanoose
    5A Audubon
    5A Benton
    6A Black Hawk
    5A Boone
    6A Bremer
    6A Buchanan
    6A Buena Vista
    6A Butler
    6A Calhoun
    5A Carroll
    5A Cass
    5A Cedar
    6A Cerro Gordo
    6A Cherokee
    6A Chickasaw
    5A Clarke
    6A Clay
    6A Clayton
    5A Clinton
    5A Crawford
    5A Dallas
    5A Davis
    5A Decatur
    6A Delaware
    5A Des Moines
    6A Dickinson
    5A Dubuque
    6A Emmet
    6A Fayette
    6A Floyd
    6A Franklin
    5A Fremont
    5A Greene
    6A Grundy
    5A Guthrie
    6A Hamilton
    6A Hancock
    6A Hardin
    5A Harrison
    5A Henry
    6A Howard
    6A Humboldt
    6A Ida
    5A Iowa
    5A Jackson
    5A Jasper
    5A Jefferson
    5A Johnson
    5A Jones
    5A Keokuk
    6A Kossuth
    5A Lee
    5A Linn
    5A Louisa
    5A Lucas
    6A Lyon
    5A Madison
    5A Mahaska
    5A Marion
    5A Marshall
    5A Mills
    6A Mitchell
    5A Monona
    5A Monroe
    5A Montgomery
    5A Muscatine
    6A O’Brien
    6A Osceola
    5A Page
    6A Palo Alto
    6A Plymouth
    6A Pocahontas
    5A Polk
    5A Pottawattamie
    5A Poweshiek
    5A Ringgold
    6A Sac
    5A Scott
    5A Shelby
    6A Sioux
    5A Story
    5A Tama
    5A Taylor
    5A Union
    5A Van Buren
    5A Wapello
    5A Warren
    5A Washington
    5A Wayne
    6A Webster
    6A Winnebago
    6A Winneshiek
    5A Woodbury
    6A Worth
    6A Wright
    KANSAS
    4A Allen
    4A Anderson
    4A Atchison
    4A Barber
    4A Barton
    4A Bourbon
    4A Brown
    4A Butler
    4A Chase
    4A Chautauqua
    4A Cherokee
    5A Cheyenne
    4A Clark
    4A Clay
    5A Cloud
    4A Coffey
    4A Comanche
    4A Cowley
    4A Crawford
    5A Decatur
    4A Dickinson
    4A Doniphan
    4A Douglas
    4A Edwards
    4A Elk
    5A Ellis
    4A Ellsworth
    4A Finney
    4A Ford
    4A Franklin
    4A Geary
    5A Gove
    5A Graham
    4A Grant
    4A Gray
    5A Greeley
    4A Greenwood
    5A Hamilton
    4A Harper
    4A Harvey
    4A Haskell
    4A Hodgeman
    4A Jackson
    4A Jefferson
    5A Jewell
    4A Johnson
    4A Kearny
    4A Kingman
    4A Kiowa
    4A Labette
    5A Lane
    4A Leavenworth
    4A Lincoln
    4A Linn
    5A Logan
    4A Lyon
    4A Marion
    4A Marshall
    4A McPherson
    4A Meade
    4A Miami
    5A Mitchell
    4A Montgomery
    4A Morris
    4A Morton
    4A Nemaha
    4A Neosho
    5A Ness
    5A Norton
    4A Osage
    5A Osborne
    4A Ottawa
    4A Pawnee
    5A Phillips
    4A Pottawatomie
    4A Pratt
    5A Rawlins
    4A Reno
    5A Republic
    4A Rice
    4A Riley
    5A Rooks
    4A Rush
    4A Russell
    4A Saline
    5A Scott
    4A Sedgwick
    4A Seward
    4A Shawnee
    5A Sheridan
    5A Sherman
    5A Smith
    4A Stafford
    4A Stanton
    4A Stevens
    4A Sumner
    5A Thomas
    5A Trego
    4A Wabaunsee
    5A Wallace
    4A Washington
    5A Wichita
    4A Wilson
    4A Woodson
    4A Wyandotte
    KENTUCKY
    4A (all)
    LOUISIANA
    2A Acadia*
    2A Allen*
    2A Ascension*
    2A Assumption*
    2A Avoyelles*
    2A Beauregard*
    3A Bienville*
    3A Bossier*
    3A Caddo*
    2A Calcasieu*
    3A Caldwell*
    2A Cameron*
    3A Catahoula*
    3A Claiborne*
    3A Concordia*
    3A De Soto*
    2A East Baton Rouge*
    3A East Carroll
    2A East Feliciana*
    2A Evangeline*
    3A Franklin*
    3A Grant*
    2A Iberia*
    2A Iberville*
    3A Jackson*
    2A Jefferson*
    2A Jefferson Davis*
    2A Lafayette*
    2A Lafourche*
    3A La Salle*
    3A Lincoln*
    2A Livingston*
    3A Madison*
    3A Morehouse
    3A Natchitoches*
    2A Orleans*
    3A Ouachita*
    2A Plaquemines*
    2A Pointe Coupee*
    2A Rapides*
    3A Red River*
    3A Richland*
    3A Sabine*
    2A St. Bernard*
    2A St. Charles*
    2A St. Helena*
    2A St. James*
    2A St. John the
    Baptist*
    2A St. Landry*
    2A St. Martin*
    2A St. Mary*
    2A St. Tammany*
    2A Tangipahoa*
    3A Tensas*
    2A Terrebonne*
    3A Union*
    2A Vermilion*
    3A Vernon*
    2A Washington*
    3A Webster*
    2A West Baton
    Rouge*
    3A West Carroll
    2A West Feliciana*
    3A Winn*
    MAINE
    6A Androscoggin
    7 Aroostook
    6A Cumberland
    6A Franklin
    6A Hancock
    6A Kennebec
    6A Knox
    6A Lincoln
    6A Oxford
    6A Penobscot
    6A Piscataquis
    6A Sagadahoc
    6A Somerset
    6A Waldo
    6A Washington
    6A York
    MARYLAND
    4A Allegany
    4A Anne Arundel
    4A Baltimore
    4A Baltimore (city)
    4A Calvert
    4A Caroline
    4A Carroll
    4A Cecil
    4A Charles
    4A Dorchester
    4A Frederick
    5A Garrett
    4A Harford
    4A Howard
    4A Kent
    4A Montgomery
    4A Prince George’s
    4A Queen Anne’s
    4A Somerset
    4A St. Mary’s
    4A Talbot
    4A Washington
    4A Wicomico
    4A Worcester
    MASSACHSETTS
    5A (all)
    MICHIGAN
    6A Alcona
    6A Alger
    5A Allegan
    6A Alpena
    6A Antrim
    6A Arenac
    7 Baraga
    5A Barry
    5A Bay
    6A Benzie
    5A Berrien
    5A Branch
    5A Calhoun
    5A Cass
    6A Charlevoix
    6A Cheboygan
    7 Chippewa
    6A Clare
    5A Clinton
    6A Crawford
    6A Delta
    6A Dickinson
    5A Eaton
    6A Emmet
    5A Genesee
    6A Gladwin
    7 Gogebic
    6A Grand Traverse
    5A Gratiot
    5A Hillsdale
    7 Houghton
    6A Huron
    5A Ingham
    5A Ionia
    6A Iosco
    7 Iron
    6A Isabella
    5A Jackson
    5A Kalamazoo
    6A Kalkaska
    5A Kent
    7 Keweenaw
    6A Lake
    5A Lapeer
    6A Leelanau
    5A Lenawee
    5A Livingston
    7 Luce
    7 Mackinac
    5A Macomb
    6A Manistee
    6A Marquette
    6A Mason
    6A Mecosta
    6A Menominee
    5A Midland
    6A Missaukee
    5A Monroe
    5A Montcalm
    6A Montmorency
    5A Muskegon
    6A Newaygo
    5A Oakland
    6A Oceana
    6A Ogemaw
    7 Ontonagon
    6A Osceola
    6A Oscoda
    6A Otsego
    5A Ottawa
    6A Presque Isle
    6A Roscommon
    5A Saginaw
    6A Sanilac
    7 Schoolcraft
    5A Shiawassee
    5A St. Clair
    5A St. Joseph
    5A Tuscola
    5A Van Buren
    5A Washtenaw
    5A Wayne
    6A Wexford
    MINNESOTA
    7 Aitkin
    6A Anoka
    7 Becker
    7 Beltrami
    6A Benton
    6A Big Stone
    6A Blue Earth
    6A Brown
    7 Carlton
    6A Carver
    7 Cass
    6A Chippewa
    6A Chisago
    7 Clay
    7 Clearwater
    7 Cook
    6A Cottonwood
    7 Crow Wing
    6A Dakota
    6A Dodge
    6A Douglas
    6A Faribault
    6A Fillmore
    6A Freeborn
    6A Goodhue
    7 Grant
    6A Hennepin
    6A Houston
    7 Hubbard
    6A Isanti
    7 Itasca
    6A Jackson
    7 Kanabec
    6A Kandiyohi
    7 Kittson
    7 Koochiching
    6A Lac qui Parle
    7 Lake
    7 Lake of the Woods
    6A Le Sueur
    6A Lincoln
    6A Lyon
    7 Mahnomen
    7 Marshall
    6A Martin
    6A McLeod
    6A Meeker
    7 Mille Lacs
    6A Morrison
    6A Mower
    6A Murray
    6A Nicollet
    6A Nobles
    7 Norman
    6A Olmsted
    7 Otter Tail
    7 Pennington
    7 Pine
    6A Pipestone
    7 Polk
    6A Pope
    6A Ramsey
    7 Red Lake
    6A Redwood
    6A Renville
    6A Rice
    6A Rock
    7 Roseau
    6A Scott
    6A Sherburne
    6A Sibley
    6A Stearns
    6A Steele
    6A Stevens
    7 St. Louis
    6A Swift
    6A Todd
    6A Traverse
    6A Wabasha
    7 Wadena
    6A Waseca
    6A Washington
    6A Watonwan
    7 Wilkin
    6A Winona
    6A Wright
    6A Yellow
    Medicine
    MISSISSIPPI
    3A Adams*
    3A Alcorn
    3A Amite*
    3A Attala
    3A Benton
    3A Bolivar
    3A Calhoun
    3A Carroll
    3A Chickasaw
    3A Choctaw
    3A Claiborne*
    3A Clarke
    3A Clay
    3A Coahoma
    3A Copiah*
    3A Covington*
    3A DeSoto
    3A Forrest*
    3A Franklin*
    3A George*
    3A Greene*
    3A Grenada
    2A Hancock*
    2A Harrison*
    3A Hinds*
    3A Holmes
    3A Humphreys
    3A Issaquena
    3A Itawamba
    2A Jackson*
    3A Jasper
    3A Jefferson*
    3A Jefferson Davis*
    3A Jones*
    3A Kemper
    3A Lafayette
    3A Lamar*
    3A Lauderdale
    3A Lawrence*
    3A Leake
    3A Lee
    3A Leflore
    3A Lincoln*
    3A Lowndes
    3A Madison
    3A Marion*
    3A Marshall
    3A Monroe
    3A Montgomery
    3A Neshoba
    3A Newton
    3A Noxubee
    3A Oktibbeha
    3A Panola
    2A Pearl River*
    3A Perry*
    3A Pike*
    3A Pontotoc
    3A Prentiss
    3A Quitman
    3A Rankin*
    3A Scott
    3A Sharkey
    3A Simpson*
    3A Smith*
    2A Stone*
    3A Sunflower
    3A Tallahatchie
    3A Tate
    3A Tippah
    3A Tishomingo
    3A Tunica
    3A Union
    3A Walthall*
    3A Warren*
    3A Washington
    3A Wayne*
    3A Webster
    3A Wilkinson*
    3A Winston
    3A Yalobusha
    3A Yazoo
    MISSOURI
    5A Adair
    5A Andrew
    5A Atchison
    4A Audrain
    4A Barry
    4A Barton
    4A Bates
    4A Benton
    4A Bollinger
    4A Boone
    5A Buchanan
    4A Butler
    5A Caldwell
    4A Callaway
    4A Camden
    4A Cape Girardeau
    4A Carroll
    4A Carter
    4A Cass
    4A Cedar
    5A Chariton
    4A Christian
    5A Clark
    4A Clay
    5A Clinton
    4A Cole
    4A Cooper
    4A Crawford
    4A Dade
    4A Dallas
    5A Daviess
    5A DeKalb
    4A Dent
    4A Douglas
    4A Dunklin
    4A Franklin
    4A Gasconade
    5A Gentry
    4A Greene
    5A Grundy
    5A Harrison
    4A Henry
    4A Hickory
    5A Holt
    4A Howard
    4A Howell
    4A Iron
    4A Jackson
    4A Jasper
    4A Jefferson
    4A Johnson
    5A Knox
    4A Laclede
    4A Lafayette
    4A Lawrence
    5A Lewis
    4A Lincoln
    5A Linn
    5A Livingston
    5A Macon
    4A Madison
    4A Maries
    5A Marion
    4A McDonald
    5A Mercer
    4A Miller
    4A Mississippi
    4A Moniteau
    4A Monroe
    4A Montgomery
    4A Morgan
    4A New Madrid
    4A Newton
    5A Nodaway
    4A Oregon
    4A Osage
    4A Ozark
    4A Pemiscot
    4A Perry
    4A Pettis
    4A Phelps
    5A Pike
    4A Platte
    4A Polk
    4A Pulaski
    5A Putnam
    5A Ralls
    4A Randolph
    4A Ray
    4A Reynolds
    4A Ripley
    4A Saline
    5A Schuyler
    5A Scotland
    4A Scott
    4A Shannon
    5A Shelby
    4A St. Charles
    4A St. Clair
    4A St. Francois
    4A St. Louis
    4A St. Louis (city)
    4A Ste. Genevieve
    4A Stoddard
    4A Stone
    5A Sullivan
    4A Taney
    4A Texas
    4A Vernon
    4A Warren
    4A Washington
    4A Wayne
    4A Webster
    5A Worth
    4A Wright
    MONTANA
    6B (all)
    NEBRASKA
    5A (all)
    NEVADA
    5B Carson City (city)
    5B Churchill
    3B Clark
    5B Douglas
    5B Elko
    5B Esmeralda
    5B Eureka
    5B Humboldt
    5B Lander
    5B Lincoln
    5B Lyon
    5B Mineral
    5B Nye
    5B Pershing
    5B Storey
    5B Washoe
    5B White Pine
    NEW HAMPSHIRE
    6A Belknap
    6A Carroll
    5A Cheshire
    6A Coos
    6A Grafton
    5A Hillsborough
    6A Merrimack
    5A Rockingham
    5A Strafford
    6A Sullivan
    NEW JERSEY
    4A Atlantic
    5A Bergen
    4A Burlington
    4A Camden
    4A Cape May
    4A Cumberland
    4A Essex
    4A Gloucester
    4A Hudson
    5A Hunterdon
    5A Mercer
    4A Middlesex
    4A Monmouth
    5A Morris
    4A Ocean
    5A Passaic
    4A Salem
    5A Somerset
    5A Sussex
    4A Union
    5A Warren
    NEW MEXICO
    4B Bernalillo
    5B Catron
    3B Chaves
    4B Cibola
    5B Colfax
    4B Curry
    4B DeBaca
    3B Doña Ana
    3B Eddy
    4B Grant
    4B Guadalupe
    5B Harding
    3B Hidalgo
    3B Lea
    4B Lincoln
    5B Los Alamos
    3B Luna
    5B McKinley
    5B Mora
    3B Otero
    4B Quay
    5B Rio Arriba
    4B Roosevelt
    5B Sandoval
    5B San Juan
    5B San Miguel
    5B Santa Fe
    4B Sierra
    4B Socorro
    5B Taos
    5B Torrance
    4B Union
    4B Valencia
    NEW YORK
    5A Albany
    6A Allegany
    4A Bronx
    6A Broome
    6A Cattaraugus
    5A Cayuga
    5A Chautauqua
    5A Chemung
    6A Chenango
    6A Clinton
    5A Columbia
    5A Cortland
    6A Delaware
    5A Dutchess
    5A Erie
    6A Essex
    6A Franklin
    6A Fulton
    5A Genesee
    5A Greene
    6A Hamilton
    6A Herkimer
    6A Jefferson
    4A Kings
    6A Lewis
    5A Livingston
    6A Madison
    5A Monroe
    6A Montgomery
    4A Nassau
    4A New York
    5A Niagara
    6A Oneida
    5A Onondaga
    5A Ontario
    5A Orange
    5A Orleans
    5A Oswego
    6A Otsego
    5A Putnam
    4A Queens
    5A Rensselaer
    4A Richmond
    5A Rockland
    5A Saratoga
    5A Schenectady
    6A Schoharie
    6A Schuyler
    5A Seneca
    6A Steuben
    6A St. Lawrence
    4A Suffolk
    6A Sullivan
    5A Tioga
    6A Tompkins
    6A Ulster
    6A Warren
    5A Washington
    5A Wayne
    4A Westchester
    6A Wyoming
    5A Yates
    NORTH CAROLINA
    4A Alamance
    4A Alexander
    5A Alleghany
    3A Anson
    5A Ashe
    5A Avery
    3A Beaufort
    4A Bertie
    3A Bladen
    3A Brunswick*
    4A Buncombe
    4A Burke
    3A Cabarrus
    4A Caldwell
    3A Camden
    3A Carteret*
    4A Caswell
    4A Catawba
    4A Chatham
    4A Cherokee
    3A Chowan
    4A Clay
    4A Cleveland
    3A Columbus*
    3A Craven
    3A Cumberland
    3A Currituck
    3A Dare
    3A Davidson
    4A Davie
    3A Duplin
    4A Durham
    3A Edgecombe
    4A Forsyth
    4A Franklin
    3A Gaston
    4A Gates
    4A Graham
    4A Granville
    3A Greene
    4A Guilford
    4A Halifax
    4A Harnett
    4A Haywood
    4A Henderson
    4A Hertford
    3A Hoke
    3A Hyde
    4A Iredell
    4A Jackson
    3A Johnston
    3A Jones
    4A Lee
    3A Lenoir
    4A Lincoln
    4A Macon
    4A Madison
    3A Martin
    4A McDowell
    3A Mecklenburg
    5A Mitchell
    3A Montgomery
    3A Moore
    4A Nash
    3A New Hanover*
    4A Northampton
    3A Onslow*
    4A Orange
    3A Pamlico
    3A Pasquotank
    3A Pender*
    3A Perquimans
    4A Person
    3A Pitt
    4A Polk
    3A Randolph
    3A Richmond
    3A Robeson
    4A Rockingham
    3A Rowan
    4A Rutherford
    3A Sampson
    3A Scotland
    3A Stanly
    4A Stokes
    4A Surry
    4A Swain
    4A Transylvania
    3A Tyrrell
    3A Union
    4A Vance
    4A Wake
    4A Warren
    3A Washington
    5A Watauga
    3A Wayne
    4A Wilkes
    3A Wilson
    4A Yadkin
    5A Yancey
    NORTH DAKOTA
    6A Adams
    7 Barnes
    7 Benson
    6A Billings
    7 Bottineau
    6A Bowman
    7 Burke
    6A Burleigh
    7 Cass
    7 Cavalier
    6A Dickey
    7 Divide
    6A Dunn
    7 Eddy
    6A Emmons
    7 Foster
    6A Golden Valley
    7 Grand Forks
    6A Grant
    7 Griggs
    6A Hettinger
    7 Kidder
    6A LaMoure
    6A Logan
    7 McHenry
    6A McIntosh
    6A McKenzie
    7 McLean
    6A Mercer
    6A Morton
    7 Mountrail
    7 Nelson
    6A Oliver
    7 Pembina
    7 Pierce
    7 Ramsey
    6A Ransom
    7 Renville
    6A Richland
    7 Rolette
    6A Sargent
    7 Sheridan
    6A Sioux
    6A Slope
    6A Stark
    7 Steele
    7 Stutsman
    7 Towner
    7 Traill
    7 Walsh
    7 Ward
    7 Wells
    7 Williams
    OHIO
    4A Adams
    5A Allen
    5A Ashland
    5A Ashtabula
    5A Athens
    5A Auglaize
    5A Belmont
    4A Brown
    5A Butler
    5A Carroll
    5A Champaign
    5A Clark
    4A Clermont
    5A Clinton
    5A Columbiana
    5A Coshocton
    5A Crawford
    5A Cuyahoga
    5A Darke
    5A Defiance
    5A Delaware
    5A Erie
    5A Fairfield
    5A Fayette
    5A Franklin
    5A Fulton
    4A Gallia
    5A Geauga
    5A Greene
    5A Guernsey
    4A Hamilton
    5A Hancock
    5A Hardin
    5A Harrison
    5A Henry
    5A Highland
    5A Hocking
    5A Holmes
    5A Huron
    5A Jackson
    5A Jefferson
    5A Knox
    5A Lake
    4A Lawrence
    5A Licking
    5A Logan
    5A Lorain
    5A Lucas
    5A Madison
    5A Mahoning
    5A Marion
    5A Medina
    5A Meigs
    5A Mercer
    5A Miami
    5A Monroe
    5A Montgomery
    5A Morgan
    5A Morrow
    5A Muskingum
    5A Noble
    5A Ottawa
    5A Paulding
    5A Perry
    5A Pickaway
    4A Pike
    5A Portage
    5A Preble
    5A Putnam
    5A Richland
    5A Ross
    5A Sandusky
    4A Scioto
    5A Seneca
    5A Shelby
    5A Stark
    5A Summit
    5A Trumbull
    5A Tuscarawas
    5A Union
    5A Van Wert
    5A Vinton
    5A Warren
    4A Washington
    5A Wayne
    5A Williams
    5A Wood
    5A Wyandot
    OKLAHOMA
    3A Adair
    3A Alfalfa
    3A Atoka
    4B Beaver
    3A Beckham
    3A Blaine
    3A Bryan
    3A Caddo
    3A Canadian
    3A Carter
    3A Cherokee
    3A Choctaw
    4B Cimarron
    3A Cleveland
    3A Coal
    3A Comanche
    3A Cotton
    3A Craig
    3A Creek
    3A Custer
    3A Delaware
    3A Dewey
    3A Ellis
    3A Garfield
    3A Garvin
    3A Grady
    3A Grant
    3A Greer
    3A Harmon
    3A Harper
    3A Haskell
    3A Hughes
    3A Jackson
    3A Jefferson
    3A Johnston
    3A Kay
    3A Kingfisher
    3A Kiowa
    3A Latimer
    3A Le Flore
    3A Lincoln
    3A Logan
    3A Love
    3A Major
    3A Marshall
    3A Mayes
    3A McClain
    3A McCurtain
    3A McIntosh
    3A Murray
    3A Muskogee
    3A Noble
    3A Nowata
    3A Okfuskee
    3A Oklahoma
    3A Okmulgee
    3A Osage
    3A Ottawa
    3A Pawnee
    3A Payne
    3A Pittsburg
    3A Pontotoc
    3A Pottawatomie
    3A Pushmataha
    3A Roger Mills
    3A Rogers
    3A Seminole
    3A Sequoyah
    3A Stephens
    4B Texas
    3A Tillman
    3A Tulsa
    3A Wagoner
    3A Washington
    3A Washita
    3A Woods
    3A Woodward
    OREGON
    5B Baker
    4C Benton
    4C Clackamas
    4C Clatsop
    4C Columbia
    4C Coos
    5B Crook
    4C Curry
    5B Deschutes
    4C Douglas
    5B Gilliam
    5B Grant
    5B Harney
    5B Hood River
    4C Jackson
    5B Jefferson
    4C Josephine
    5B Klamath
    5B Lake
    4C Lane
    4C Lincoln
    4C Linn
    5B Malheur
    4C Marion
    5B Morrow
    4C Multnomah
    4C Polk
    5B Sherman
    4C Tillamook
    5B Umatilla
    5B Union
    5B Wallowa
    5B Wasco
    4C Washington
    5B Wheeler
    4C Yamhill
    PENNSYLVANIA
    5A Adams
    5A Allegheny
    5A Armstrong
    5A Beaver
    5A Bedford
    5A Berks
    5A Blair
    5A Bradford
    4A Bucks
    5A Butler
    5A Cambria
    6A Cameron
    5A Carbon
    5A Centre
    4A Chester
    5A Clarion
    6A Clearfield
    5A Clinton
    5A Columbia
    5A Crawford
    5A Cumberland
    5A Dauphin
    4A Delaware
    6A Elk
    5A Erie
    5A Fayette
    5A Forest
    5A Franklin
    5A Fulton
    5A Greene
    5A Huntingdon
    5A Indiana
    5A Jefferson
    5A Juniata
    5A Lackawanna
    5A Lancaster
    5A Lawrence
    5A Lebanon
    5A Lehigh
    5A Luzerne
    5A Lycoming
    6A McKean
    5A Mercer
    5A Mifflin
    5A Monroe
    4A Montgomery
    5A Montour
    5A Northampton
    5A Northumberland
    5A Perry
    4A Philadelphia
    5A Pike
    6A Potter
    5A Schuylkill
    5A Snyder
    5A Somerset
    5A Sullivan
    6A Susquehanna
    6A Tioga
    5A Union
    5A Venango
    5A Warren
    5A Washington
    6A Wayne
    5A Westmoreland
    5A Wyoming
    4A York
    RHODE ISLAND
    5A (all)
    SOUTH CAROLINA
    3A Abbeville
    3A Aiken
    3A Allendale*
    3A Anderson
    3A Bamberg*
    3A Barnwell*
    3A Beaufort*
    3A Berkeley*
    3A Calhoun
    3A Charleston*
    3A Cherokee
    3A Chester
    3A Chesterfield
    3A Clarendon
    3A Colleton*
    3A Darlington
    3A Dillon
    3A Dorchester*
    3A Edgefield
    3A Fairfield
    3A Florence
    3A Georgetown*
    3A Greenville
    3A Greenwood
    3A Hampton*
    3A Horry*
    3A Jasper*
    3A Kershaw
    3A Lancaster
    3A Laurens
    3A Lee
    3A Lexington
    3A Marion
    3A Marlboro
    3A McCormick
    3A Newberry
    3A Oconee
    3A Orangeburg
    3A Pickens
    3A Richland
    3A Saluda
    3A Spartanburg
    3A Sumter
    3A Union
    3A Williamsburg
    3A York
    SOUTH DAKOTA
    6A Aurora
    6A Beadle
    5A Bennett
    5A Bon Homme
    6A Brookings
    6A Brown
    6A Brule
    6A Buffalo
    6A Butte
    6A Campbell
    5A Charles Mix
    6A Clark
    5A Clay
    6A Codington
    6A Corson
    6A Custer
    6A Davison
    6A Day
    6A Deuel
    6A Dewey
    5A Douglas
    6A Edmunds
    6A Fall River
    6A Faulk
    6A Grant
    5A Gregory
    6A Haakon
    6A Hamlin
    6A Hand
    6A Hanson
    6A Harding
    6A Hughes
    5A Hutchinson
    6A Hyde
    5A Jackson
    6A Jerauld
    6A Jones
    6A Kingsbury
    6A Lake
    6A Lawrence
    6A Lincoln
    6A Lyman
    6A Marshall
    6A McCook
    6A McPherson
    6A Meade
    5A Mellette
    6A Miner
    6A Minnehaha
    6A Moody
    6A Pennington
    6A Perkins
    6A Potter
    6A Roberts
    6A Sanborn
    6A Shannon
    6A Spink
    6A Stanley
    6A Sully
    5A Todd
    5A Tripp
    6A Turner
    5A Union
    6A Walworth
    5A Yankton
    6A Ziebach
    TENNESSEE
    4A Anderson
    4A Bedford
    4A Benton
    4A Bledsoe
    4A Blount
    4A Bradley
    4A Campbell
    4A Cannon
    4A Carroll
    4A Carter
    4A Cheatham
    3A Chester
    4A Claiborne
    4A Clay
    4A Cocke
    4A Coffee
    3A Crockett
    4A Cumberland
    4A Davidson
    4A Decatur
    4A DeKalb
    4A Dickson
    3A Dyer
    3A Fayette
    4A Fentress
    4A Franklin
    4A Gibson
    4A Giles
    4A Grainger
    4A Greene
    4A Grundy
    4A Hamblen
    4A Hamilton
    4A Hancock
    3A Hardeman
    3A Hardin
    4A Hawkins
    3A Haywood
    3A Henderson
    4A Henry
    4A Hickman
    4A Houston
    4A Humphreys
    4A Jackson
    4A Jefferson
    4A Johnson
    4A Knox
    3A Lake
    3A Lauderdale
    4A Lawrence
    4A Lewis
    4A Lincoln
    4A Loudon
    4A Macon
    3A Madison
    4A Marion
    4A Marshall
    4A Maury
    4A McMinn
    3A McNairy
    4A Meigs
    4A Monroe
    4A Montgomery
    4A Moore
    4A Morgan
    4A Obion
    4A Overton
    4A Perry
    4A Pickett
    4A Polk
    4A Putnam
    4A Rhea
    4A Roane
    4A Robertson
    4A Rutherford
    4A Scott
    4A Sequatchie
    4A Sevier
    3A Shelby
    4A Smith
    4A Stewart
    4A Sullivan
    4A Sumner
    3A Tipton
    4A Trousdale
    4A Unicoi
    4A Union
    4A Van Buren
    4A Warren
    4A Washington
    4A Wayne
    4A Weakley
    4A White
    4A Williamson
    4A Wilson
    TEXAS
    2A Anderson*
    3B Andrews
    2A Angelina*
    2A Aransas*
    3A Archer
    4B Armstrong
    2A Atascosa*
    2A Austin*
    4B Bailey
    2B Bandera
    2A Bastrop*
    3B Baylor
    2A Bee*
    2A Bell*
    2A Bexar*
    3A Blanco*
    3B Borden
    2A Bosque*
    3A Bowie*
    2A Brazoria*
    2A Brazos*
    3B Brewster
    4B Briscoe
    2A Brooks*
    3A Brown*
    2A Burleson*
    3A Burnet*
    2A Caldwell*
    2A Calhoun*
    3B Callahan
    2A Cameron*
    3A Camp*
    4B Carson
    3A Cass*
    4B Castro
    2A Chambers*
    2A Cherokee*
    3B Childress
    3A Clay
    4B Cochran
    3B Coke
    3B Coleman
    3A Collin*
    3B Collingsworth
    2A Colorado*
    2A Comal*
    3A Comanche*
    3B Concho
    3A Cooke
    2A Coryell*
    3B Cottle
    3B Crane
    3B Crockett
    3B Crosby
    3B Culberson
    4B Dallam
    3A Dallas*
    3B Dawson
    4B Deaf Smith
    3A Delta
    3A Denton*
    2A DeWitt*
    3B Dickens
    2B Dimmit
    4B Donley
    2A Duval*
    3A Eastland
    3B Ector
    2B Edwards
    3A Ellis*
    3B El Paso
    3A Erath*
    2A Falls*
    3A Fannin
    2A Fayette*
    3B Fisher
    4B Floyd
    3B Foard
    2A Fort Bend*
    3A Franklin*
    2A Freestone*
    2B Frio
    3B Gaines
    2A Galveston*
    3B Garza
    3A Gillespie*
    3B Glasscock
    2A Goliad*
    2A Gonzales*
    4B Gray
    3A Grayson
    3A Gregg*
    2A Grimes*
    2A Guadalupe*
    4B Hale
    3B Hall
    3A Hamilton*
    4B Hansford
    3B Hardeman
    2A Hardin*
    2A Harris*
    3A Harrison*
    4B Hartley
    3B Haskell
    2A Hays*
    3B Hemphill
    3A Henderson*
    2A Hidalgo*
    2A Hill*
    4B Hockley
    3A Hood*
    3A Hopkins*
    2A Houston*
    3B Howard
    3B Hudspeth
    3A Hunt*
    4B Hutchinson
    3B Irion
    3A Jack
    2A Jackson*
    2A Jasper*
    3B Jeff Davis
    2A Jefferson*
    2A Jim Hogg*
    2A Jim Wells*
    3A Johnson*
    3B Jones
    2A Karnes*
    3A Kaufman*
    3A Kendall*
    2A Kenedy*
    3B Kent
    3B Kerr
    3B Kimble
    3B King
    2B Kinney
    2A Kleberg*
    3B Knox
    3A Lamar*
    4B Lamb
    3A Lampasas*
    2B La Salle
    2A Lavaca*
    2A Lee*
    2A Leon*
    2A Liberty*
    2A Limestone*
    4B Lipscomb
    2A Live Oak*
    3A Llano*
    3B Loving
    3B Lubbock
    3B Lynn
    2A Madison*
    3A Marion*
    3B Martin
    3B Mason
    2A Matagorda*
    2B Maverick
    3B McCulloch
    2A McLennan*
    2A McMullen*
    2B Medina
    3B Menard
    3B Midland
    2A Milam*
    3A Mills*
    3B Mitchell
    3A Montague
    2A Montgomery*
    4B Moore
    3A Morris*
    3B Motley
    3A Nacogdoches*
    3A Navarro*
    2A Newton*
    3B Nolan
    2A Nueces*
    4B Ochiltree
    4B Oldham
    2A Orange*
    3A Palo Pinto*
    3A Panola*
    3A Parker*
    4B Parmer
    3B Pecos
    2A Polk*
    4B Potter
    3B Presidio
    3A Rains*
    4B Randall
    3B Reagan
    2B Real
    3A Red River*
    3B Reeves
    2A Refugio*
    4B Roberts
    2A Robertson*
    3A Rockwall*
    3B Runnels
    3A Rusk*
    3A Sabine*
    3A San Augustine*
    2A San Jacinto*
    2A San Patricio*
    3A San Saba*
    3B Schleicher
    3B Scurry
    3B Shackelford
    3A Shelby*
    4B Sherman
    3A Smith*
    3A Somervell*
    2A Starr*
    3A Stephens
    3B Sterling
    3B Stonewall
    3B Sutton
    4B Swisher
    3A Tarrant*
    3B Taylor
    3B Terrell
    3B Terry
    3B Throckmorton
    3A Titus*
    3B Tom Green
    2A Travis*
    2A Trinity*
    2A Tyler*
    3A Upshur*
    3B Upton
    2B Uvalde
    2B Val Verde
    3A Van Zandt*
    2A Victoria*
    2A Walker*
    2A Waller*
    3B Ward
    2A Washington*
    2B Webb
    2A Wharton*
    3B Wheeler
    3A Wichita
    3B Wilbarger
    2A Willacy*
    2A Williamson*
    2A Wilson*
    3B Winkler
    3A Wise
    3A Wood*
    4B Yoakum
    3A Young
    2B Zapata
    2B Zavala
    UTAH
    5B Beaver
    6B Box Elder
    6B Cache
    6B Carbon
    6B Daggett
    5B Davis
    6B Duchesne
    5B Emery
    5B Garfield
    5B Grand
    5B Iron
    5B Juab
    5B Kane
    5B Millard
    6B Morgan
    5B Piute
    6B Rich
    5B Salt Lake
    5B San Juan
    5B Sanpete
    5B Sevier
    6B Summit
    5B Tooele
    6B Uintah
    5B Utah
    6B Wasatch
    3B Washington
    5B Wayne
    5B Weber
    VERMONT
    6A (all)
    VIRGINIA
    4A (all)
    WASHINGTON
    5B Adams
    5B Asotin
    5B Benton
    5B Chelan
    4C Clallam
    4C Clark
    5B Columbia
    4C Cowlitz
    5B Douglas
    6B Ferry
    5B Franklin
    5B Garfield
    5B Grant
    4C Grays Harbor
    4C Island
    4C Jefferson
    4C King
    4C Kitsap
    5B Kittitas
    5B Klickitat
    4C Lewis
    5B Lincoln
    4C Mason
    6B Okanogan
    4C Pacific
    6B Pend Oreille
    4C Pierce
    4C San Juan
    4C Skagit
    5B Skamania
    4C Snohomish
    5B Spokane
    6B Stevens
    4C Thurston
    4C Wahkiakum
    5B Walla Walla
    4C Whatcom
    5B Whitman
    5B Yakima
    WEST VIRGINIA
    5A Barbour
    4A Berkeley
    4A Boone
    4A Braxton
    5A Brooke
    4A Cabell
    4A Calhoun
    4A Clay
    5A Doddridge
    5A Fayette
    4A Gilmer
    5A Grant
    5A Greenbrier
    5A Hampshire
    5A Hancock
    5A Hardy
    5A Harrison
    4A Jackson
    4A Jefferson
    4A Kanawha
    5A Lewis
    4A Lincoln
    4A Logan
    5A Marion
    5A Marshall
    4A Mason
    4A McDowell
    4A Mercer
    5A Mineral
    4A Mingo
    5A Monongalia
    4A Monroe
    4A Morgan
    5A Nicholas
    5A Ohio
    5A Pendleton
    4A Pleasants
    5A Pocahontas
    5A Preston
    4A Putnam
    5A Raleigh
    5A Randolph
    4A Ritchie
    4A Roane
    5A Summers
    5A Taylor
    5A Tucker
    4A Tyler
    5A Upshur
    4A Wayne
    5A Webster
    5A Wetzel
    4A Wirt
    4A Wood
    4A Wyoming
    WISCONSIN
    6A Adams
    7 Ashland
    6A Barron
    7 Bayfield
    6A Brown
    6A Buffalo
    7 Burnett
    6A Calumet
    6A Chippewa
    6A Clark
    6A Columbia
    6A Crawford
    6A Dane
    6A Dodge
    6A Door
    7 Douglas
    6A Dunn
    6A Eau Claire
    7 Florence
    6A Fond du Lac
    7 Forest
    6A Grant
    6A Green
    6A Green Lake
    6A Iowa
    7 Iron
    6A Jackson
    6A Jefferson
    6A Juneau
    6A Kenosha
    6A Kewaunee
    6A La Crosse
    6A Lafayette
    7 Langlade
    7 Lincoln
    6A Manitowoc
    6A Marathon
    6A Marinette
    6A Marquette
    6A Menominee
    6A Milwaukee
    6A Monroe
    6A Oconto
    7 Oneida
    6A Outagamie
    6A Ozaukee
    6A Pepin
    6A Pierce
    6A Polk
    6A Portage
    7 Price
    6A Racine
    6A Richland
    6A Rock
    6A Rusk
    6A Sauk
    7 Sawyer
    6A Shawano
    6A Sheboygan
    6A St. Croix
    7 Taylor
    6A Trempealeau
    6A Vernon
    7 Vilas
    6A Walworth
    7 Washburn
    6A Washington
    6A Waukesha
    6A Waupaca
    6A Waushara
    6A Winnebago
    6A Wood
    WYOMING
    6B Albany
    6B Big Horn
    6B Campbell
    6B Carbon
    6B Converse
    6B Crook
    6B Fremont
    5B Goshen
    6B Hot Springs
    6B Johnson
    6B Laramie
    7 Lincoln
    6B Natrona
    6B Niobrara
    6B Park
    5B Platte
    6B Sheridan
    7 Sublette
    6B Sweetwater
    7 Teton
    6B Uinta
    6B Washakie
    6B Weston
    US TERRITORIES
    AMERICAN SAMOA
    1A (all)*
    GUAM
    1A (all)*
    NORTHERN MARIANA ISLANDS
    1A (all)*
    PUERTO RICO
    1A (all)*
    VIRGIN ISLANDS
    1A (all)*

    C301.2Warm humid counties.

    Warm humid counties are identified in Table C301.1 by an asterisk.

    C301.3International climate zones.

    The climate zone for any location outside the United States shall be determined by applying Table C301.3(1) and then Table C301.3(2).

    TABLE C301.3(1)

    INTERNATIONAL CLIMATE ZONE DEFINITIONS

    MAJOR CLIMATE TYPE DEFINITIONS
    Marine (C) Definition—Locations meeting all four criteria:
    1. 1.Mean temperature of coldest month between -3°C (27°F) and 18°C (65°F).

    2. 2.Warmest month mean < 22°C (72°F).

    3. 3.At least four months with mean temperatures over 10°C (50°F).

    4. 4.Dry season in summer. The month with the heaviest precipitation in the cold season has at least three times as much precipitation as the month with the least precipitation in the rest of the year. The cold season is October through March in the Northern Hemisphere and April through September in the Southern Hemisphere.

    Dry (B) Definition—Locations meeting the following criteria:

    Not marine and Pin < 0.44 × (TF - 19.5) [Pcm < 2.0 × (TC + 7) in SI units]

    where:
    Pin=Annual precipitation in inches (cm)
    T=Annual mean temperature in °F (°C)
    Moist (A) Definition—Locations that are not marine and not dry.
    Warm-humid Definition—Moist (A) locations where either of the following wet-bulb temperature conditions shall occur during the warmest six consecutive months of the year:
    1. 1.67°F (19.4°C) or higher for 3,000 or more hours; or

    2. 2.73°F (22.8°C) or higher for 1,500 or more hours.

    For SI: °C = [(°F)-32]/1.8, 1 inch = 2.54 cm.

    TABLE C301.3(2)

    INTERNATIONAL CLIMATE ZONE DEFINITIONS

    ZONENUMBERTHERMAL CRITERIA
    IP UnitsSI Units
    19000 < CDD50°F5000 < CDD10°C
    26300 < CDD50°F ≤ 90003500 < CDD10°C ≤ 5000
    3A and 3B4500 < CDD50°F ≤ 6300 AND HDD65°F ≤ 54002500 < CDD10°C ≤ 3500 AND HDD18°C ≤ 3000
    4 A and 4BCDD50°F ≤ 4500 AND HDD65°F ≤ 5400CDD10°C ≤ 2500 AND HDD18°C ≤ 3000
    3CHDD65°F ≤ 3600HDD18°C ≤ 2000
    4C3600 < HDD65°F ≤ 54002000 < HDD18°C ≤ 3000
    55400 < HDD65°F ≤ 72003000 < HDD18°C ≤ 4000
    67200 < HDD65°F ≤ 90004000 < HDD18°C ≤ 5000
    79000 < HDD65°F ≤ 126005000 < HDD18°C ≤ 7000
    812600 < HDD65°F7000 < HDD18°C

    For SI: °C = [(°F)-32]/1.8.

    C301.4Tropical climate zone.

    The tropical climate zone shall be defined as:

    1. 1.Hawaii, Puerto Rico, Guam, American Samoa, U.S. Virgin Islands, Commonwealth of Northern Mariana Islands; and

    2. 2.Islands in the area between the Tropic of Cancer and the Tropic of Capricorn.