ARIZONA  
statewide

CALIFORNIA
Greater Los Angeles Chapter
90000-91899, 92600-92899

Northern California Chapter
94000-94199, 94300-95499

San Diego County Chapter
91900-92199

COLORADO  
statewide

CONNECTICUT  
statewide

DELAWARE
See Pennsylvania:
Philadelphia/Delaware Valley Chapter

DISTRICT OF COLUMBIA
National Capital Area Chapter
20000-22899

FLORIDA
Mid Florida Chapter
32100-32199, 32600-32999, 33500-33899, 34400-34499,  34600-34799

South Florida Chapter
33000-33499, 34900-34999

Upper Florida Chapter
32000-32099, 32200-32599

GEORGIA  
statewide

HAWAII 
statewide

ILLINOIS
Chicago Chapter 
60000-60799

Southern Illinois Chapter
62000-62299, 62800-62999

INDIANA 
statewide

IOWA 
52000-52199
See Seven Rivers Region (WI)

LOUISIANA 
statewide

MASSACHUSETTS 
statewide

MICHIGAN
Southeast Michigan Chapter
48000-48399, 49200-49299

MINNESOTA 
statewide

Except:
55900-55999
See Seven Rivers Region (WI)

MISSOURI 
statewide

NEBRASKA 
statewide

NEW HAMPSHIRE
statewide

NEW JERSEY
statewide

NEW MEXICO 
statewide

NEW YORK 
Central New York Chapter
13000-13599, 13700-13999, 14800-14999

Eastern New York Chapter
12000-12899

Greater New York Chapter
10000-11999

Northern New York Chapter
12900-12999, 13600-13699

Western New York/Northwest Pennsylvania Chapter
14000-14399, 14400-14699, 14700-14799, 16400-16599 

NORTH CAROLINA
statewide

OHIO
Northeast Ohio Chapter
44000-44999

OKLAHOMA
Central Oklahoma Chapter
73000-73199, 73400-73999, 74500-74999

North Central Oklahoma Chapter
74000-74499

OREGON
statewide
(includes parts of Southwest Washington)
97000-97999, 98600-98699

PENNSYLVANIA
Central Pennsylvania Chapter
15800-15899, 16600-17299, 17700-17899

Philadelphia/Delaware Valley Chapter
17300-17699, 18000-18599, 18900-19999

Western Pennsylvania/West Virginia Chapter
15000-15799, 15900-16399, 26100-26699 in WV

Northwest Pennsylvania
See Western New York

RHODE ISLAND  
statewide

SOUTH CAROLINA  
statewide

TENNESSEE 
statewide

TEXAS
Brazos Valley Chapter
75800-75899, 77400-77499, 77800-77999, 78900-78999

Houston/Southeast Texas Chapter
77000-77599

North Texas Chapter
75000-75799, 76000-76799

UTAH  
statewide

VERMONT  
statewide

VIRGINIA
Blue Ridge Chapter (Southwest VA)
24000-24699

Northern Virginia
See District of Columbia

Southeast Virginia Chapter
23000-23999

WASHINGTON
Greater Puget Sound Chapter
98000-98599, 98800-99499

Southwest Washington
See Oregon

WEST VIRGINIA
Western Pennsylvania/West Virginia Chapter
26100-26699

WISCONSIN 
statewide

Except:
Seven Rivers (WI) Region Chapter
52000-52199 (IA), 54600-54699 (WI), 55900-55999 (MN)