Alabama
State law

Alaska
No state investigations license required.

Arizona
Dept. of Public Safety, Licensing Division
P. O. Box 6328
Phoenix, AZ 85005
(602) 223-2361.

Web Site

Arkansas
Arkansas Board of Private Investigators and Private Security Agencies
#1 State Police Plaza Dr.
Little Rock, Arkansas 72209
(501) 618-8600

California
Licensing Division, Bureau of Security and Investigative Services
400 R Street
Sacramento, CA 95814
(800) 952-5210
Web Site

Colorado
No state investigations license required.

Connecticut
Department of Public Safety, Division of State Police
294 Colony St.
Meriden, CT 06450-2098
Web site

Delaware
Detective Licensing, Delaware State Police
P. O. Box 430
Dover, DE 19903
(302) 736-5900
Web site

District of Columbia
Security Officers Management Branch, Metro Police
Security Unit 2000
14th St. NW
Washington, DC 20009
(202) 939-8722

Florida
Department of State, Division of Licensing
P.O. Box 6687
Tallahassee, FL 32314-6687
(904) 488-5381
Web site

Georgia

Secretary of State
State Examining Boards
Board of Private Detective and Security Agencies
237 Coliseum Drive
Macon, GA 31217-3858
(912) 207-1460

Hawaii
Board of Private Detectives & Guards
DCCA, PVL, Licensing Branch
1010 Richards St.
P.O. Box 3469
Honolulu, HI 96801.
(808) 586-3000 or (808) 586-2701

Idaho
No state investigations  license required.

Illinois
Illinois Department of Professional Regulation
320 West Washington Street, 3rd Floor
Springfield, IL 62786
Web page

Indiana
Private Detective Licensing Board
100 N. Senae Ave., Rm 1021
Indiana Government Center North
Indianapolis, IN 46204-2246
(317) 232-2980

Iowa
Administrative Services Division, Iowa Department of Public Safety
Wallace State Office Bldg.
Des Moines, IA 50319
(515) 281-3211

Kansas
Office of the Attorney General
Kansas Judicial Center, 2nd Floor
Topeka, KS 66612-1597

Kentucky
Bush Building
406 Wapping St., 2nd Floor
Frankfort, KY 40601
(502) 564-7554

Louisiana
L.S.B.P.I.E.
2051 Silverside Drive, Suite 190
Baton Rouge, LA  70808

Maine
State Police Licensing Division
State House Station  #164
Augusta, ME 04333
(207) 624-8775 

Maryland
Maryland State Police, PI Licensing Division
Jessup, MD
(410) 799-0191, ext. 331

Massachusetts
Massachusetts State Police
Special Licensing Unit
485 Maple Street
Danvers, MA  01923
978-538-6128 voice
978-538-6021 fax

Michigan
State of Michigan
Department of State Police
Private Security & Investigator Unit
PO Box 30635
4000 Collins Road
Lansing MI 48909
(517) 336-3425
Web site

Minnesota
Department of Public Safety
Private Detective & Protective Agent Services Board
445 Minnesota St.   *new address*
St. Paul, MN 55101
(612) 215-1753

Mississippi
No state investigations  license required.

Missouri
P.O. Box 720
Jefferson City, MO 65102
No state investigations  license required

Montana
Board of Private Security Patrolmen & Investigators
Arcade Building
11 North Jackson
PO Box 200513
Helena, MT 59620-0513
(406) 444-3728, Fax: (406) 444-1667
Web site

Nebraska
Secretary of State
State Capitol, Suite 2300
Lincoln, NE 68509
(402) 471-2554
Web site

Nevada
Office of the Attorney General
Private Investigator's Licensing Board
100 N. Carson St.
Carson City, NV 89701-4717
(702) 687-5534

New Hampshire
State Police
Division of Licenses and Permits
Hazen DR., Concord, NH 03305
(603) 271-3575

New Jersey
State Police
Department of Law & Public Safety
Private Detective Unit
P. O. Box 7068
W. Trenton, NJ 08688-0068
(609) 882-2000, ext 2931
Web site

New Mexico
Bureau of Private Investigators
P.O. Box 25101
Santa Fe, NM 87504
(505) 827-7172

New York
Department of State
Division of Licensing Services
84 Holland Avenue
Albany, NY 12208-3490
Web site

North Carolina
Private Protective Services Board
P. O. Box 29500
3320 Old Garner Rd.
Raleigh, NC 27626-0500
(919) 662-4387 Fax: 919-662-4459
Web site

North Dakota
Private Investigative & Security Board
P.O. Box 7026
Bismarck, ND 58505
(701) 222-3063

Ohio
Ohio Department of Commerce
Division of Licensing
77 South High St.
Columbus, OH 43266-0546
(614) 466-4130

Oklahoma
Council on Law Enforcement Education & Training
Private Security Division
P. O. Box 11476-Cimarron Station
Oklahoma City, OK 73136-0476
(405) 425-2775

Oregon
Oregon Board of Investigators
445 State Office Bldg.
800 NE Oregon Street #33
Portland, OR 97232
(503) 731-4359
FAX: (503) 731-4366
Email: piboard@state.or.us

Pennsylvania
State law

Puerto Rico
Policia De Puerto Rico
GPO Box 70166
San Juan, PR 00936
(809) 781-0227

Rhode Island
State of Rhode Island
Providence Plantations
345 Harris Ave.
Providence, RI 29221
(402) 277-2000 , City of Newport (401) 846-9600

South Carolina
State Law Enforcement Division
Regulatory Services
P. O. Box 21398
Columbia, SC 29221-1398
(803) 737-9000
Fax: (803) 896-7041

South Dakota
No state investigations  license required.

Tennessee
Department of Commerce & Insurance
Private Protective Services Division
500 James Robertson Parkway
Nashville, TN 37243-1158
(615) 741-6382
Web site

Texas
Board of Private Investigators & Private Security Agencies
4930 S. Congress, Suite C-305
Austin, TX 78745
P. O. Box 13509
Austin, TX 78711
(512) 463-5545
FAX: (512) 452-2307
Web site

Utah
Department of Public Safety & Law Enforcement Services
Bureau of Regulatory Licensing
4501 South 2700 West
Salt Lake City, UT 84119
(801) 965-4461

Vermont
Board of Private Investigative and Armed Security Services
Office of Professional Regulation
109 State St.
Montpelier, VT 05609-1101
(802) 828-2837

Virginia
Department of Criminal Justice Services
Private Security Section
P.O. Box 10110
Richmond, Virginia 23240-9998
(804) 786-4700

Washington
Department of Licensing, Professional Licensing Services
Private Detective Licensing
2424 Bristol Ct., SW
Olympia, WA 98504
P.O. Box 9045
Olympia, WA 98507-9045

West Virginia
Secretary of State
Licensing Division
Private Investigator Licensing
Charleston, WV 25301
Web site

Wisconsin
Department of Regulation & Licensing
P.O. Box 8935
Madison, WI 53708
(608) 266-0829
Web site